Replacing the heater motor Lada 2115 (VAZ 2115)

Important points

In order for the stove repair to proceed as quickly as possible, and its results not to disappoint the car owner, you should adhere to the rules below:

When removing the old motor, be sure to turn it. If this is not done, part of its fastening may break and get stuck in the torpedo, or more precisely, in the mounting bracket. And getting to the stuck fragment will not be so easy.
When tightening the mounting screws with a Phillips screwdriver, you should not use too much force: they are small, so the threads in their sockets can easily be stripped.

As practice shows, replacing an engine is not particularly difficult even for a novice car enthusiast if he has held a wrench and a screwdriver in his hands at least once in his life. The whole procedure takes 40–50 minutes maximum. The main thing is not to overdo it with tightening the fasteners, and everything will be fine.

To force the air flow in the interior heating system, a fan driven by an electric motor is used. Thanks to this fan, the heater's operating efficiency increases.

Of the entire stove design, the fan is the most complex element, since it uses an electric motor. The electric motor itself is a direct current motor with excitation from permanent magnets. Despite its structural simplicity, the motor gradually wears out and stops working or functions incorrectly, which affects the performance of the interior heater.

What is a heater fan

The VAZ-2115 stove fan is a conventional DC electric motor, powered by the vehicle’s on-board power supply. The air flow is created by the rotation of a cylindrical impeller mounted on the armature shaft.

The fan is controlled using a special switch located on the control panel. It has four positions corresponding to its operating modes: “OFF” mode and three speeds. The higher the speed of rotation of the impeller, the stronger the flow of air supplied to the cabin.

Fan location

In VAZ-2114 and 2115 cars it is located on the left side of the engine compartment, under the windshield. Due to the fact that it is attached in an easily accessible place, dismantling the heater fan does not require a lot of time and significant labor costs.

This does not require disassembling other parts of the heating system. Tools for the job will require a Phillips screwdriver and a set of wrenches.

Removing and replacing the electric motor

heat The electric motor is attached to the body of the heating unit using two screws. Having disassembled the connections with a Phillips screwdriver, it is necessary to disconnect the motor and heater and pull out the previously disconnected wires through the seal. You can remove the electric fan from the engine compartment as follows:

slightly raise the unit;
remove the front supporting surface from engagement with the heater body by moving the engine toward you;
turn the motor 90 degrees;
pull the structure out of the compartment.

“Experienced” recommend taking into account a different principle for dismantling the unit, which at the same time includes part of the measures for disassembling the product:

rotate the device around the axis of rotation so that the exit window “looks” at the performer;
remove the foam seal;
separate the halves of the unit body by prying them with a flat screwdriver at the junction;
bring out the left half by sliding it to the left edge;
bring out the right half, having first moved it to the left.

A complete replacement of only the heater fan on a VAZ 2114 is possible after disassembling the right half of the unit casing:

unfasten the two spring latches securing the cover relative to the casing;
remove the motor cover;
remove the electric motor and impeller assembly.

when replacing an assembled device, there is no need to disassemble the old product;
Before disassembling the electric motor, it is recommended to evaluate its performance by connecting the device to the battery;
It is forbidden to remove the impeller from the shaft, especially a new electric motor, to avoid imbalance;
All work should be performed with the battery disconnected.

Before installing a new unit, it is necessary to clean the inlet duct of the heating system. Installation of a new product is carried out in the reverse order. Having placed the structure near the seat, you should glue a new foam seal along the contour in contact with the heating installation. Upon completion of work in the engine compartment, it is necessary to connect the unit to the on-board controller and it is advisable to replace the cabin filter.

Quick replacement of the Lada 2114 heater fan: a guide to action

When does the heater fan need to be replaced?
Workshop replacement of the heater fan on cars of the VAZ 2114 family: we create conditions for the operation
Removing and replacing the electric motor
Eventually

fan The internal ventilation system of the Lada 2115 is capable of organizing the circulation of air flows under the influence of the natural air pressure produced when driving at a decent speed. A fan heater can artificially pump air into the cabin, the rotation speed of which is stepwise regulated by the control unit.

When does the heater fan need to be replaced?

This unit on a VAZ 2114 should be “sentenced” to replacement not only in case of its complete inaction, which is a consequence of:

short circuit of the armature winding to ground or its breakage;
collector wear;
brushes getting stuck.

An electric motor whose armature rotates quite slowly at any speed is also subject to inspection and quite possibly further disposal due to:

reservoir oxidation/contamination;
interturn closure of the armature winding;
wear of bearings and seats for rolling bearings.

For your information. In the event of a short circuit in the armature winding of the electric motor, fuse F7 immediately blows, which is simultaneously responsible for the cigarette lighter, glove compartment lighting and heated rear window.

Workshop replacement of the heater fan on cars of the VAZ 2114 family: we create conditions for the operation

The design of the heating installation located behind the dashboard is implemented competently. The developers did take into account the convenience of repairing the cooler: the electric motor is located in the engine compartment and is easily accessible.

The connections between the electric motor and the on-board control system are located in the cabin behind the dashboard. The unit is switched off according to the following scheme:

remove the right center console cover by unscrewing three screws;
disconnect the single-pin power supply connector for the electric motor;
Unscrew the “ground” of the unit using a 10mm socket and remove the terminal from the stud.

Before replacing the heater fan in the engine compartment of the VAZ 2114, preparatory operations are carried out in the engine compartment. For convenience, experienced owners strongly recommend removing two deflectors near the windshield wipers. They are fastened with self-tapping screws in five places. Further actions follow the following scheme:

remove the cabin filter;
Unscrew the four self-tapping screws securing the electric motor casing in the engine compartment;
remove the casing from the engine compartment.

Removing and replacing the electric motor

slightly raise the unit;
remove the front supporting surface from engagement with the heater body by moving the engine toward you;
turn the motor 90 degrees;
pull the structure out of the compartment.

“Experienced” recommend taking into account a different principle for dismantling the unit, which at the same time includes part of the measures for disassembling the product:

rotate the device around the axis of rotation so that the exit window “looks” at the performer;
remove the foam seal;
separate the halves of the unit body by prying them with a flat screwdriver at the junction;
bring out the left half by sliding it to the left edge;
bring out the right half, having first moved it to the left.

A complete replacement of only the heater fan on a VAZ 2114 is possible after disassembling the right half of the unit casing:

unfasten the two spring latches securing the cover relative to the casing;
remove the motor cover;
remove the electric motor and impeller assembly.

when replacing an assembled device, there is no need to disassemble the old product;
Before disassembling the electric motor, it is recommended to evaluate its performance by connecting the device to the battery;
It is forbidden to remove the impeller from the shaft, especially a new electric motor, to avoid imbalance;
All work should be performed with the battery disconnected.

Eventually

Disposal of an old electric heater motor most often occurs due to wear of the commutator (after 100,000 km) or short circuit of the armature winding, which will be indicated by a “silent” or difficult-to-rotate shaft, as well as a blown fuse F7.

The method for replacing a faulty VAZ 2114 stove fan looks simplified like this:

disconnect the device from the on-board power supply;
dismantle the deflectors and cabin filter;
remove the protective cover;
remove the electric motor complete with housing or in parts;
remove the motor assembly with the impeller from the casing;
Install the new unit and reassemble in the reverse order.

How to remove the fan from the VAZ 2114 stove?

To do this, you need to know where exactly it is. The fan is placed in a special container, which is located in the hood of the vehicle near the windshield.

To remove the fan you will need an ordinary screwdriver and a basic set of keys. Let's take a look at the step-by-step removal of the fan:

1. You should find the plus wire of the equipment. Disconnect it;
2. Since the casing cover is secured with screws, remove them completely;
3. Remove the casing and unscrew the screws;
4. Unscrew the screws that secure the air intake grilles;
5. Remove the motor of the VAZ 2114; to do this you will have to move it slightly towards you and lift it;
6. After removing the motor, turn it 90 degrees. This is necessary to remove it from the casing and remove it.

As you can see, replacement is not such a difficult matter. Therefore, these works are easy to do yourself.

How to remove the VAZ 2115 stove fan: video instructions

One of the most common problems with a car heater is the failure of the fan that supplies warm air to the cabin. To eliminate it, many car enthusiasts turn to car service specialists. We propose to minimize costs and perform such a procedure as replacing the heater motor of a VAZ-2115 car with your own hands. Detailed step-by-step instructions, which can be found below, will help you with this.

Why does the heater motor fail?

Is it possible to do without replacing this part and try to restore its functionality on your own? Theoretically, yes. But in reality this happens quite rarely, since setting up a fan is a difficult task even for experienced craftsmen.

Where is the VAZ-2115 knock sensor located?

The main reasons why the stove motor malfunctions are:

fuse burnt out. This breakdown is not difficult to perform, since the safety element also protects the cigarette lighter, glove compartment light and headlight washer from short circuits. Of course, if it malfunctions, this equipment will also not work;

failure of the fan winding;

problems with the ignition relay. If warm air begins to enter the cabin only after the engine has warmed up, then the problem is in this part;

failure of the resistor, which allows you to configure the heater to operate in several modes;

The contacts on the motor block are oxidized.

As we have already found out, in case of any fan failure, it is best to replace it - this will save you money and time, and will also ensure an optimal climate in the car interior.

What is required to replace the heater motor on a VAZ-2115

The entire replacement procedure will take only 45-60 minutes for an experienced car enthusiast. In this case, it is enough to prepare a minimum set of tools and accessories, including:

Phillips screwdriver;
spanners;
a new motor, which must meet the specifications of a specific car model.

Why is there no spark on the VAZ-2115 injector?

Heater fan replacement procedure

The first step is to remove the positive terminal from the car battery to turn off the power supply to the old motor. After this we perform the following steps:

in the engine compartment of the car, remove the fan casing and unscrew the screws that hold the part in place;
remove the air supply grille, which is secured with special bolts;
remove the rubber seal located directly under the grille;
remove the dashboard from the driver's seat and disconnect the wires connected to the motor;
slightly move the motor together with the protective casing, removing it from the clamps and removing the non-working part;
remove the fan from the casing;
we connect to the car’s electrical network and mount a new motor, after which we reassemble in the reverse order;
connect the terminal to the battery and check the functionality of the stove.

We strongly recommend choosing a new and original motor to ensure trouble-free operation for a long time. If you still buy a used part, be sure to check its technical condition, integrity of contacts, and operability.

How to make an acoustic shelf on a VAZ-2115

As you can see, the procedure for installing a new heater motor on a VAZ-2115 car does not require a lot of time, special skills and knowledge. Therefore, it is absolutely not necessary to take such a minor problem to a car service center, where the cost of such repairs can be quite high. Just buy a new part and install it, following all the recommendations given in our instructions.

Instructions for replacing the VAZ 2114 stove motor

First, let's list the consumables and tools we need:

a new VAZ 2114 heater motor (and you must buy it complete with a fan and a protective cover);
set of open-end wrenches;
Phillips screwdriver (medium size).

To change the motor yourself, you need to follow the sequence of actions below:

The hood of the car is opened, and the terminal with the minus sign is disconnected from the battery using a 10-mm open-end wrench.
In the cab of the car, under the dashboard, there is a power cord for the oven motor.
It is manually removed from the connector. The “positive” power cable for the motor is located in the cockpit, under the dashboard.
Now in the engine compartment, using an 8 mm open-end wrench, unscrew the 2 nuts holding the fan shroud.
There is also a nut with which the car's ground wire is attached to the casing. She also unscrews. Next to the casing nuts there is also a “ground” nut, which also unscrews.
Next, use a Phillips screwdriver to unscrew the additional fan mounting bolts.
An additional pair of mounting bolts is unscrewed with a Phillips screwdriver.
The air supply grille is released and removed, revealing access to the motor held on a special bracket.
When all the fasteners are unscrewed, the air intake grille is removed manually.
To remove the motor, first pull it towards you, then turn it 90 degrees, remove it from the mounting bracket and remove it from its normal place.
The electric motor of the heater is first pulled towards itself, and then turned at a right angle.
Now a new motor is installed in place of the burnt device, after which all components are reassembled.

VAZ 2115 Heater Fan Doesn't Work

The main purpose of a car heater is to heat the interior in cool weather. For example, to ensure 16°C inside the car when there is severe frost outside. The main function of the heater is performed by the fan, also called the motor.

The fan is a multifunctional element that drives air through the heater radiator and into the cabin. The fan, together with the radiator, tubes for refrigerant circulation, liquid regulator and air duct are part of the heating unit. Its purpose is to drive cool air through a heated radiator, creating thermal exchange.

The heater fan is a motor that supplies air. Imagine its work in more detail, of course, only when working with the entire complex of heating accounting programs:

During the period of heating of the car engine, liquid enters there, cooling the walls of the cylinder block and taking away heat.
Hot antifreeze enters the heater radiator, and the latter quickly heats up.
A motor (fan) is put into operation, supplying streams of cool air, thereby cooling the element.
The interior of the car begins to warm up.

On VAZ 2113-2115 cars, the heater motor is located under the hood. It is covered with a protective casing secured with 4 screws. The fan itself is also supported by bolts and nuts and is connected to the body of the car.

To gain access to the fan to dismantle it, you will have to work in the interior beforehand. Specifically, reset the wiring that connects the fan to the vehicle's electronic system.

Why does the heater motor stop working? In other words, there are good reasons, and there are several of them. But in most cases, the cause of the malfunction is clogging. Dust seeps everywhere, including inside the mechanism.

The VAZ 08, 09,14,15 stove does not work. We are looking for the reason. Part 1

Cleaning the stove fan sometimes helps make the mechanism work
With the advent of cooler weather, correct and uninterrupted operation of the heater becomes of great importance. Alas, according to the law of meanness, there are now frequent problems that have their own good reasons:

The safety element breaks, designed to look not so much at the heater together with its components, but also at the glove box lighting, the optics washer motor, etc.
This 30-amp fuse is located in a special block and is marked with the number F7. Usually, the reason for its burnout is a short circuit. The burned element just needs to be replaced. Fuse F7 in the VAZ 2113 mounting block The ignition relay is located under the device panel.
This also becomes a prerequisite for problems with the stove motor, because it is connected to the electrical circuit. You can make sure that this is a specific relay by the following sign: the fan does not work only when the engine is warm (more details about the relay are written at the end).
The stove radiator deteriorates, where scale appears over time. The element can be removed and washed with “Mole”, as it is also called by some other liquids.
The radiator of the VAZ 2115 stove deteriorates due to scale formation
Air leaks into the system, forming plugs. This has a bad effect on the overall operation of the stove, in particular on the motor. Proper de-airing of the entire accounting system will help.
The additional resistor is faulty. If this part is the “culprit”, electricity will begin to flow to the motor only in the 3rd position of the heater.
Accordingly, in the first and second modes the fan will not turn on, because the current flows through a resistor here. The problem is solved by changing the resistor. If there is a malfunction, the additional heater resistor must be replaced
The contacts of the wiring terminals connecting the fan to the car’s electrical system have become loose. It is necessary to re-tighten them; if they are oxidized, clean them.

The VAZ 2113-2115 heater motor is removed as follows:

Beforehand, the side cover of the dashboard of unfamiliar pedals is removed. The side cover of the casing can be removed to facilitate the process of removing the fan
Then the electronic contact is disconnected from under the dashboard - a transition device between the car’s electronic system and the motor. The positive wire plug connects the fan to the car's electrical system.
The “ground” located on the bolt under the head “10” is also unscrewed. The negative wire of the fan is connected to the mounting bolt on the body

After which you need to transfer the work to the engine compartment:

Unscrew the protective cover that hides the motor.
Then remove the screws holding it in place. The fan clamps are simply unscrewed with a screwdriver
Wires disconnected inside the car should be pulled up.
Later you need to remove the top cover of the motor to make it easier to pull it out. The top fan cover can be removed in one place to make it easier to remove the motor.
Pull by hand to remove the fan.

Before a specific shift, it is recommended to check the motor, because it may not work:

Place the fan on a level surface.
Connect the wires to the battery terminals.

The faulty element will not spin at all or will do so at intervals, weakly and noisily. Before starting work, you must also remember to carefully clean out all the debris from the niche where the new motor will be installed.

The changeover procedure does not take just 40 minutes for an experienced motorist. It is enough to have a screwdriver, wrenches and a new fan with you. The event is carried out backwards to the withdrawal process.

The wiring terminals must be secured well so that they do not loosen while the machine is moving.

Repair of the heater fan of the VAZ 2114 heater Part 1

It is recommended to select a 100% new and high-quality motor (of unusual production) for a replacement in order to protect yourself from unnecessary costs. A good fan will last for a long time.

Not all motorists who decide to carry out repairs and replacements without the help of others, of course, quickly find a faulty stove. The relay is responsible for sufficient heating of the interior, so the motor malfunction may be related to it.

Often this element simply wears out. This is not a repairable part, it only requires replacement. Therefore, it is important to know where the relay is located in order to change it at home on time. The element is located on the center console under the device panel, often in the mounting block, next to the fuse.

The VAZ 2113-2115 heater relay is located near the fuses

The heater motor is a fundamental and indispensable element that allows accounting (software) of the heating of the car. Repeated maintenance and timely replacement of faulty parts will always help keep the car interior warm.

Operating principle of the heater

The heater itself does not produce heat. The heated coolant entering the heater radiator is used as its carrier. During the heat exchange process, the air inside the device heats up and begins to penetrate into the cabin through special pipes.

However, natural circulation is not enough to warm the interior of the car. The fan supplies warm air under pressure. It is thanks to him that the car interior warms up in a matter of minutes.

The VAZ-2114 stove fan is a conventional DC electric motor, powered by the vehicle’s on-board power supply. The air flow is created by the rotation of a cylindrical impeller mounted on the armature shaft.

What is a stove fan

A fan is a functional element that drives air through the heater radiator and into the cabin. The fan, along with the radiator, pipes for refrigerant circulation, liquid regulator and air duct, is part of the heating unit. Its purpose is to drive cold air through a heated radiator, creating heat exchange.

We recommend: Removing the steering wheel on a VAZ-2107: step-by-step instructions with photos

Node functions

The heater fan is a motor that supplies air. You can imagine its operation in more detail only during the operation of the entire heating system:

As the car engine heats up, liquid enters it, cooling the walls of the cylinder block and taking away heat.
Hot antifreeze enters the heater radiator, and the latter quickly heats up.
A motor (fan) is turned on, supplying flows of cold air, thereby cooling the element.
The interior of the car begins to warm up.

The heating diagram of the VAZ 2113–2115 clearly shows the purpose of the motor

Where is the VAZ 2113-2115 heater motor located?

On VAZ 2113-2115 vehicles, the heater motor is located in the engine compartment. It is covered with a protective casing secured with four screws. The fan itself is also supported by bolts and nuts and is connected to the body of the car.

To gain access to the fan in order to dismantle it, you will have to first work in the interior. In particular, remove the wiring that connects the fan to the vehicle's electrical system.

Fan disassembly

In the case where there is a motor with an impeller, we disassemble the fan housing. To do this, remove the foam seal from the outlet socket, then remove the housing clamps, after which it will split into two halves.

We extract the email. motor, for which we unfasten the spring clamps of the motor cover, remove this cover and remove the electric motor. the engine together with the impeller from half the housing. The electric motor is replaced only as an assembly with the impeller, and it is not recommended to disconnect them so as not to disturb the alignment. When assembling, be sure to stick a foam seal around the perimeter of the outlet socket, otherwise the air flow will dissipate due to the cracks, which will reduce the efficiency of the stove. If the electric motor of the stove made a strong squeal during operation, you don’t have to change the electric motor, just disassemble the fan and put grease in the bushings. But these measures will help eliminate the squealing for a short period of time and ultimately the stove motor will have to be replaced.

How to replace a heater motor

Due to the fact that the fan is fixed on the heater housing and is accessible from the engine compartment, replacing the VAZ-2114 heater motor is a simple process and does not require disassembling the interior heating system and draining the coolant. Therefore, you can replace the fan yourself, without seeking help from a service station.

To replace the motor, the tools you will need are screwdrivers and a 8-10 wrench. The algorithm for dismantling the heater fan on a VAZ-2114 is as follows: 1. Turn off the power to the on-board network by removing the “positive” terminal from the battery. 2. In the passenger compartment, on the driver’s side, behind the pedal unit, we find the fan power wires – black (“ground”, pressed with a nut to one of the bolts) and blue (“plus”).

3. Unscrew the ground nut, find the blue wire connector and disconnect it. 4. Open the hood. 5. Remove the fan casing with the filter installed in it. To do this, unscrew the 4 fastening screws.

6. Unscrew the fastening screws of the air intake grille installed near the glass. We remove the grille. 7. Unscrew the 2 bolts securing the fan housing.

8. Using a “pull” motion, remove the body from the support. 9. Rotate the body 90 degrees. and remove it from the niche.

Further actions depend on what exactly was purchased for replacement - the assembly with the housing or just the electric motor with the impeller. If a fully assembled structure is available, we install a new element using the technology reverse to that described above.

Replacing the radiator of the VAZ-2115 stove

Replacement is necessary when the heater radiator leaks or is clogged. If the radiator is clogged, you can blow it out with a Karcher, but keep in mind that it can deteriorate under high pressure.

How to disassemble the stove and remove the radiator

In order to remove the radiator, you must first drain the coolant and disassemble the dashboard. If the coolant is still good, it can be refilled again after replacing the failed elements.

To save time, you don’t have to remove the panel completely, but just do partial disassembly.

First way:

Initially, you will need to remove the console and glove compartment. To do this, unscrew the panel fasteners on the left side. Then pull the panel towards you and remove the radiator, but, most likely, you won’t be able to do this alone and you will need to turn to someone for help, since it’s more convenient to work together.

Second way:

Unscrew the panel fastenings on both sides and loosen the brackets coming from the floor (where the ECU is located), and also remove the glove compartment completely. Bend the panel and, with the help of an assistant, remove the radiator.

When you get to the heater core, disconnect the wiring harness from the heater motor. After which you will need to unscrew two fastening nuts on the right side and two nuts on the left. After this, loosen the clamps that hold the pipes and disconnect the radiator.

How to install a new stove radiator

Installation is carried out strictly in reverse order

It is also important, after a long service life, to simultaneously replace the clamps and pipes with new ones, preferably reinforced ones. Replacing hoses for VAZ-2115 stoves is also a very lengthy and painstaking procedure, since you will have to change all the elements, otherwise there will be little benefit from a partial replacement

Old hoses will fail over time and coolant may begin to leak.

The final assembly step is to install the dashboard and add coolant.

When all replacement steps have been completed, start the engine and check how the heating works, whether it heats up well and quickly. If there is no heat for a long time, then the air lock may not have been completely removed.

Repair of VAZ 2113—2115 stove fan

Why does the heater motor stop working? There are reasons for this, and there are several of them. However, most often the cause of malfunction is clogging. Dust gets everywhere, including inside the mechanism.

Cleaning the stove fan in some cases helps to improve the operation of the mechanism

Causes and signs of heater motor failure

With the onset of cold weather, correct and uninterrupted operation of the heater becomes more important. But according to the law of meanness, it is precisely at this time that frequent problems are observed that have their own reasons:

The safety element, designed to monitor not only the heater along with its components, but also the glove compartment lighting, the optics washer motor, etc., fails. This 30-amp fuse is located in a special block and is marked with the number F7. As a rule, the reason for its burnout is a short circuit. A burnt out element simply needs to be replaced.
Fuse F7 in the VAZ 2113 mounting block
The ignition relay is located under the instrument panel. It can also cause problems with the stove motor, as it is connected to the electrical circuit. You can make sure that it is a relay by the following sign: the fan does not work only when the engine is warm (more details about the relay are written at the end).
The stove radiator deteriorates and scale forms in it over time. The element can be removed and washed with “Mole” or other liquids.
The radiator of the VAZ 2115 stove deteriorates due to scale formation
Air enters the system, forming plugs. This negatively affects the overall operation of the stove, including the motor. Proper airing of the entire system will help.
The additional resistor is faulty. If this part is the “culprit”, electricity will begin to flow to the motor only in the third position of the heater operation. Accordingly, in the first and second modes the fan will not turn on, since the current in this case flows through the resistor. The problem is solved by replacing the resistor.
If there is a malfunction, the additional heater resistor must be replaced
The contacts of the wiring terminals connecting the fan to the car's electrical system have become loose. You need to re-tighten them, and if they have oxidized, clean them.

How to remove the fan

The VAZ 2113-2115 heater motor is removed as follows:

First remove the side cover of the dashboard from the pedal side.
The side casing cover can be removed to facilitate the process of removing the fan.
Then the electrical contact is disconnected from under the dashboard - a transition device between the car's electrical system and the motor.
The positive wire plug connects the fan to the car's electrical system.
The “ground” located on the bolt under the head “10” is also unscrewed.
The negative wire of the fan is connected to the mounting bolt on the body

After this, you need to transfer the work to the engine compartment:

Unscrew the protective cover hiding the motor.
Then remove the screws holding it in place.
The fan clamps are simply unscrewed with a screwdriver
Wires disconnected inside the car should be pulled up.
After this, you need to remove the top cover of the motor to make it easier to remove.
The top fan cover can be removed in place to make motor removal easier.
Pull by hand to remove the fan.

We recommend: Replacing the fuel pump on a VAZ-2113, 2114, 2115

How is the replacement carried out?

Before direct replacement, it is recommended to check the motor, because it may not work:

Place the fan on a flat surface.
Connect the wires to the battery terminals.

A faulty element will not rotate at all or will do so intermittently, weakly and noisily. Before work, you must also remember to thoroughly clean all debris from the niche where the new motor will be installed. The replacement procedure does not take more than 40 minutes for an experienced motorist. All you need is a screwdriver, wrenches and a new fan. The activity is performed in reverse to the withdrawal process. The wiring terminals must be securely secured so that they do not loosen while the machine is moving.

It is recommended to select a completely new and high-quality motor (original production) as a replacement in order to protect yourself from unnecessary costs. A good fan will last for a long time.

Where is the VAZ 2113-2115 heater relay located?

Not all motorists who decide to carry out repairs and replacements themselves can quickly find a faulty stove. The relay is responsible for sufficient heating of the interior, so a motor malfunction may be associated with it.

Often this element simply wears out. This is not a repairable part, it only requires replacement. Therefore, it is important to know where the relay is located in order to replace it yourself in a timely manner. The element is located on the center console under the instrument panel, often in the mounting block, next to the fuse.

The VAZ 2113-2115 heater relay is located near the fuses

The heater motor is an important and indispensable element of the car heating system. Periodic maintenance and timely replacement of faulty parts will always help keep the car interior warm.

Replacing the stove fan on a VAZ-2114 is quite easy and simple. As practice shows, most motorists do just that, saving their time and money. But, if the process seems very difficult, then it is recommended to contact the service, where they will do everything quickly and efficiently.

Fuse problems

A failed stove fuse is one of the most common, and at the same time easy to repair faults.

The fourteenth is equipped with a heater fuse of type F7, with a current strength of 30 A. It is worth noting that a failed heater fuse will also cause the cigarette lighter, glove compartment lighting, electric water supply pump to clean the headlights, and rear window heating to fail, since all these systems operate from one fuse.

Situations often occur when installed fuses blow out one after another - the reason for this may be a short circuit, to identify the source of which you will have to go through the entire safety circuit

Lack of contact inside the mounting block

Also a fairly common problem, the cause of which is the oxidation of wires during operation. The solution is quite simple; you need to sort out the wiring in the block in which they are fastened in front of the mounting block, and, if necessary, replace the contact group.

Problems with the ignition relay

A stuck ignition relay can also be the reason why the heater fan on a VAZ 2114 does not work. This is revealed quite simply - if the fan starts working only when the car’s engine has completely warmed up, then the problem is due to the ignition relay. To eliminate them, you will need to completely replace the relay.

The stove does not work in speed modes 1 and 2

If the fan turns on only at maximum speed (there are 3 in total), then the heater resistor needs to be changed. The design features of the heating system are such that in speed modes 1 and 2 the fan is powered through an additional resistor, and in mode 3 - directly from the battery.

Fan motor problems

If the VAZ 2114 cooling fan does not work, but all of the above problems have been eliminated, then one reason remains - a failed VAZ 2114 heater motor. It can either burn out or have poor contact with the power supply due to loose mass, and the fan brushes also often get stuck.

You will need to replace the heater motor with a new one, because if it starts to “stand out”, then this will happen repeatedly in the future.

When does the heater fan need to be replaced?

This unit on a VAZ 2114 should be “sentenced” to replacement not only in case of its complete inaction, which is a consequence of:

short circuit of the armature winding to ground or its breakage;
collector wear;
brushes getting stuck.

An electric motor whose armature rotates quite slowly at any speed is also subject to inspection and quite possibly further disposal due to:

reservoir oxidation/contamination;
interturn closure of the armature winding;
wear of bearings and seats for rolling bearings.

Why does the heater motor fail?

The main reasons why the stove motor malfunctions are:

fuse burnt out. This breakdown is not difficult to perform, since the safety element also protects the cigarette lighter, glove compartment light and headlight washer from short circuits. Of course, if it malfunctions, this equipment will also not work;
failure of the fan winding;
problems with the ignition relay. If warm air begins to enter the cabin only after the engine has warmed up, then the problem is in this part;
failure of the resistor, which allows you to configure the heater to operate in several modes;
The contacts on the motor block are oxidized.

How to remove the VAZ heater motor (heater motor)

Connecting to the partner media network AIR: My second channel FISHING: ...

The fan of the VAZ 2115. 2114. 2113 stove does not work? what is the reason? eliminating the breakdown of the stove.

DIY car repair... 18+... mat...

As we have already found out, in case of any fan failure, it is best to replace it - this will save you money and time, and will also ensure an optimal climate in the car interior.

Causes of malfunction

Note that the reason that the fan does not turn on is problems with the power circuit. Oxidation of wiring contacts, blown fuse, faulty resistor - all this leads to the cessation of operation of the electric motor. Therefore, if it does not turn on, you should first check the power circuit components. Common problems with the fan motor are the occurrence of extraneous sounds during operation - squeals, rattling, interruptions in operation - spontaneous stopping, difficult starting, etc.

The reason for the appearance of third-party sounds:

Deterioration in the landing bushings into which the electric motor rotor is installed, lack of lubrication in them. Because of this, the rotor becomes loose during operation, which creates increased vibrations and rattling, and “dry” friction is accompanied by squealing.
Interruptions in operation are caused by critical wear of the graphite brushes and contact plates of the rotor. Because of this, the brushes and plates cannot make normal contact with each other, which leads to problems in the operation of the fan motor - it does not spin up when turned on and may stop spontaneously.

Troubleshooting the electric motor of the stove is a problematic process and not always advisable; it is easier to purchase a new fan and replace it.

Do-it-yourself replacement of the VAZ-2114 stove motor

To force the air flow in the interior heating system, a fan driven by an electric motor is used. Thanks to this fan, the heater's operating efficiency increases.

Causes of malfunction

The reason for the appearance of third-party sounds:

Deterioration in the landing bushings into which the electric motor rotor is installed, lack of lubrication in them. Because of this, the rotor becomes loose during operation, which creates increased vibrations and rattling, and “dry” friction is accompanied by squealing.
Interruptions in operation are caused by critical wear of the graphite brushes and contact plates of the rotor. Because of this, the brushes and plates cannot make normal contact with each other, which leads to problems in the operation of the fan motor - it does not spin up when turned on and may stop spontaneously.

Troubleshooting the electric motor of the stove is a problematic process and not always advisable; it is easier to purchase a new fan and replace it.

Video: Repairing the VAZ 2114 stove motor

How to replace a heater motor

3. Unscrew the ground nut, find the blue wire connector and disconnect it. 4. Open the hood. 5. Remove the fan casing with the filter installed in it. To do this, unscrew the 4 fastening screws.

6. Unscrew the fastening screws of the air intake grille installed near the glass. We remove the grille. 7. Unscrew the 2 bolts securing the fan housing.

8. Using a “pull” motion, remove the body from the support. 9. Rotate the body 90 degrees. and remove it from the niche.

Fan disassembly

Equipment operation mechanism

The fan regulates the flow of air that will circulate inside the car. It has several damper positions, which can be directed towards heating the feet, glass or the passenger part of the cabin.

1. To supply heat to the interior of the car, it is necessary to adjust the supply of thermal air by closing and opening the tap.
2. Through these actions, coolant enters the radiator, which contributes to the formation of heat. The stove operates at the maximum coolant level with a fully heated motor, which is about one hundred degrees.
3. When the stove switches to different speed modes, the fan speed is regulated.
4. In the car interior there are special partitions with the help of which you can determine the main root causes of failure of the VAZ 2114 stove.

In case of malfunctions, the cause should be sought in the following:

The fuse has failed;

The most pressing reason. A faulty fuse does not work properly, which can be the main reason for the breakdown of the entire heating system of the vehicle. Often the cause of a blown fuse is a short circuit. To determine this deficiency, you will have to fully understand the operation of the safety chain.

Poor contact in the inside of the mounting block;

Poor contact of the mounting block

The main cause of this malfunction is considered to be oxidized wiring. There is a solution to the problem: just reconsider the wires connected in front of the mounting block and replacement may be required.

The ignition relay has failed;

Occurs as a result of a stuck ignition relay. The trouble is revealed simply. In this case, the fan does not work properly and is noisy; its effectiveness is expressed only when the engine is fully warmed up. To eliminate this failure, it is necessary to replace the relay.

Inoperability of the stove speed modes;

It is detected when the fan is operating at maximum mode, which makes noise. In this case, it is necessary to evaluate the performance of the heating resistor. If it becomes unusable, replacement will help. This is the design of the heating system. In modes 1-2, the equipment operates using an additional resistor, and only mode 3 is switched on directly from the battery.

Which VAZ 2115 stove fan to choose

Considering that the original factory heater fan is not reliable, many car owners install analogues. At the same time, some options work quieter, better and longer than the standard part installed on the car.

In any case, according to the catalogs, the original has article number 2108-8101078. This element can be installed on the VAZ 2108-21099, 2113, 2114, 2115 models. If we consider analogues, several positions in the catalog deserve special attention. For example, Fenox HM81002 (part made in Belarus), Master-sport 2108-8101078-PCS-MS (made in Germany). These motors are installed on the car without any modifications.

At the same time, there are also other replacement options that can be installed on the VAZ-2114 after certain modifications: Pekar 2108-8101091 and Luzar 2108-8101091. These solutions are in demand among many VAZ owners, they are distinguished by reliability, high performance and low noise levels during operation at a fairly reasonable cost of the product itself.

Original spare part (article)

2108-8101078 – original catalog number of the heater motor for the Lada family of cars 2108-21099, as well as 2113-2115. It is manufactured at the AvtoVAZ plant and the average cost is 2000 rubles.

Analogs

In addition to the original stove fan, you can find several analogues on the market that are recommended for installation.

So, let's look at all the possible options:

Fenox HM81002 – the cost of this product is 1,500 rubles. Country of origin: Belarus.
Master-sport 2108-8101078-PCS-MS - the average cost is also about 1,500 rubles. Country of origin: Germany.

Fenox analog heater motor

Unfortunately, no other analogues were found, but some motorists are modernizing this unit by reworking it.

Examination

To make sure that the motor is the cause of the heating system malfunction, you should carry out a simple but indicative procedure:

Start the car;
Turn on the first, second and third speeds of the stove alternately;
If there are no sounds indicating the start of the fan operation, the motor has failed;
If the fan did not turn on at speeds 1 and 2, but started working at speed 3, then the cause of the problem may be a switch or an additional resistor.

Causes of failure

The motor may not work for several reasons. Each of them requires separate consideration. Therefore, we invite you to familiarize yourself with the possible causes of fan failure in our table.

Cause

It is important to know

The fuse F7 with a voltage of 30A is responsible for the stove. Replacing it is not difficult, but the main problem lies in the possible occurrence of a short circuit. This fuse is responsible for the lighting in the glove compartment, headlight washers, cigarette lighter, and heated mirrors. If it malfunctions, all specified devices will stop working.

There is no contact in the mounting block

This is a common problem in cars and occurs as a result of contact oxidation or loss of connection strength.

Ignition relay sticks

The heater turns on only after the car has warmed up. Therefore, it is recommended to check the condition of the ignition relay if the fan is not working. Replace relay if necessary

The heater only turns on at speed 3

Speeds 1 and 2 are activated by an additional resistor, and in mode 3 the current goes directly to the motor. In this situation, you should replace the additional resistor or check its contacts

The heater switch is broken

Here we are talking about problems with the electrical target or fuse. To check their condition, you can use a test lamp

Problems in motor design

If everything is fine with the switch and current, but the fan does not respond, you should check the level of overheating of the motor, its ground contacts or brushes for sticking

Depending on the problems encountered, you may need to replace the fan. Changing the motor is not difficult, although to do this you must have some skill or at least minimal experience in working with the electrical equipment of your car.

The first step when replacing the heater motor is to disconnect the battery.

Diagnostics

The primary task is to identify the cause of the breakdown and assess your own capabilities in a specific situation.

Let's start with something simple and move on to something more complex:

We check the fuse (F-7 with a voltage of 30 A), which is responsible not only for the heating system, but also for the operation of: the cigarette lighter, heated mirrors, glove compartment lights, and headlight washers. Therefore, when this fuse blows, all of the above devices refuse to work. If it is working, we move further along the chain.
Turn on the car's ignition and switch the speed control to positions 1, 2, 3 in order. If the fan does not work in any of these positions, we move on.
If the heater motor turns on after the car engine has warmed up, the problem is a faulty ignition relay. Solved by replacing the relay.
If the heater motor refuses to work in any mode, there remains one malfunction - the heater motor itself.

The process of dismantling the fan motor

We recommend: 5 effective ways to get rid of foggy car windows

For the final verdict, let’s apply “+” directly to the motor by removing the positive wire terminal from the motor. If the motor does not come to life, the last thing you can try is to try to clean the place under the ground mount on the electric motor. Often this place oxidizes and the contact weakens.

Step-by-step replacement process

Open the hood and disconnect the negative terminal of the battery.
Behind the engine shield, unscrew the four screws securing the fan casing and remove it. Phillips head screws.

After removing the casing, remove the two screws that hold the fan housing in place.

Using a slotted screwdriver, open the latches and separate the plastic fan housing into two halves.

Disconnect the heater motor power supply terminal (it is located above the gas pedal).

Unscrew the nut by ten and remove the ground terminal of the heater motor (the terminal is located above the gas pedal).

After removing the wires, remove the fan along with the motor.

Unscrew the two screws and you will be able to remove the plastic casing.

After completing the above operations, the fan and motor are free. We take a new fan and reassemble it.

The process of replacing the VAZ 2113, 2114, 2115 stove fan is clearly shown in this video:

Replacing the stove fan VAZ 2113, 2114, 2115

The VAZ 2114 stove fan is designed to force air into the interior heating radiator. After the air passes through the radiator honeycombs, it becomes warm and enters the car interior through the air ducts. If the fan fails, the entire heating system stops working correctly and its efficiency is zero.

In this article, we will analyze the process of replacing the VAZ 2114 stove fan, list the tools for the job, and also talk about choosing a fan and the reasons for the breakdown.

Causes of failure

There may be several reasons for the malfunction:

The most common problem with a fan not working is a blown fuse. The fuse in the block should be marked F7 (20A). In addition to the stove fan, it is responsible for the cigarette lighter, heated mirrors and glove compartment lighting.

Fan selection

The original stove fan recommended by the manufacturer comes with a catalog number - 2108-8101078. It is produced in Russia and costs 1900 rubles. You can also buy analogues. These are fans from the manufacturers Fenox (HM81002) and Master-sport (2108-8101078-PCS-MS). Their prices are within 1500 rubles.

Tools for work:

open-end wrench for ten;
crosshead screwdriver.

Step-by-step replacement process

Open the hood and disconnect the negative terminal of the battery.
Behind the engine shield, unscrew the four screws securing the fan casing and remove it. Phillips head screws.

After removing the casing, remove the two screws that hold the fan housing in place.

Using a slotted screwdriver, open the latches and separate the plastic fan housing into two halves.

Disconnect the heater motor power supply terminal (it is located above the gas pedal).

Unscrew the nut by ten and remove the ground terminal of the heater motor (the terminal is located above the gas pedal).

After removing the wires, remove the fan along with the motor.

Unscrew the two screws and you will be able to remove the plastic casing.

After completing the above operations, the fan and motor are free. We take a new fan and reassemble it.

The process of replacing the VAZ 2113, 2114, 2115 stove fan is clearly shown in this video:

Let's summarize

As you can see, the process of replacing a fan is simple and will not present any difficulties for a driver who has held a tool in his hands at least once in his life. An independent replacement takes no more than twenty minutes of time, and the price of replacing a VAZ 2114 stove fan at a service station ranges from 200 to 500 rubles.

How to diagnose the performance of the VAZ-2115 heater

Turn on switch 1 first, then second and third speeds.
Using levers 2 and 4, you can adjust the desired direction of the air flow, and the latter also makes it possible to select the desired temperature.

The reasons for the breakdown may be different:

A faulty fan means the stove does not work at all.
If the radiator still shows signs of life, then the breakdown may be a failure of the additional resistor or the interior heater does not respond to switch commands.
But the stove tap can also leak or become stuck, in which case it must be urgently replaced.
When the fan is running at full power and the temperature is at maximum, and the engine is warm, then perhaps the heater radiator is clogged. To clean or replace it, you will need to disassemble it.

How to independently remove and replace the stove on a VAZ-2115

20.02.2017

Heater malfunctions in any car cause a lot of trouble. It is especially difficult to correct the situation when the problem has already started and coolant has leaked.

Replacing a heater on a car is not an easy task, since in order to get to it, you will have to disassemble half the car and it will take a lot of time. Unfortunately, not everyone knows how to remove and replace the stove on a VAZ-2115, and therefore they turn to a car service center.

But you shouldn’t rush to give your car into the wrong hands because of this procedure alone, because:

Work to replace components costs about 1500–2000 rubles.
It’s not a fact that they will do everything efficiently.
Very often, car service workers treat their work anyhow and can break something when dismantling the panel.

The device of the VAZ-2115 stove

The VAZ-2115 and VAZ-2114 have the same heating systems; using the diagram below you can clearly see its structure.

44 — fan motor; 45 - additional resistance resistor; 46 - speed switch.

How to diagnose the performance of the VAZ-2115 heater

Turn on switch 1 first, then second and third speeds.
Using levers 2 and 4, you can adjust the desired direction of the air flow, and the latter also makes it possible to select the desired temperature.

The reasons for the breakdown may be different:

A faulty fan means the stove does not work at all.
If the radiator still shows signs of life, then the breakdown may be a failure of the additional resistor or the interior heater does not respond to switch commands.
But the stove tap can also leak or become stuck, in which case it must be urgently replaced.
When the fan is running at full power and the temperature is at maximum, and the engine is warm, then perhaps the heater radiator is clogged. To clean or replace it, you will need to disassemble it.

Replacing the radiator of the VAZ-2115 stove

Replacement is necessary when the heater radiator leaks or is clogged. If the radiator is clogged, you can blow it out with a Karcher, but keep in mind that it can deteriorate under high pressure.

How to disassemble the stove and remove the radiator

In order to remove the radiator, you must first drain the coolant and disassemble the dashboard. If the coolant is still good, it can be refilled again after replacing the failed elements.

To save time, you don’t have to remove the panel completely, but just do partial disassembly.

How to replace a fan

On a VAZ-2114, replacing the heater fan will not cause any difficulties. Especially if you have already dismantled the faulty device. The first thing you need to do is check the fan. To do this, place it on a flat surface and connect two wires from the battery to the connector. Has the electric motor started? Then connect the device to the “native” connector of the wires going into the engine compartment from the passenger compartment. Turn on the ignition, and then the mode switch. Check that the fan works in all its positions. After this, place the electric motor in its place and close the casing. Screw the casing to the heater body. Connect the power wires. Additionally, check the operation of the device.

7 Body Parts You Shouldn't Touch with Your Hands Think of your body as a temple: you can use it, but there are some sacred places that you shouldn't touch with your hands. Research showing.

Our ancestors slept differently than we do. What are we doing wrong? It’s hard to believe, but scientists and many historians are inclined to believe that modern man sleeps completely differently than his ancient ancestors. Initially.

Top 10 Broke Stars It turns out that sometimes even the biggest fame ends in failure, as is the case with these celebrities.

What does your nose shape say about your personality? Many experts believe that you can tell a lot about a person's personality by looking at their nose.

Therefore, when you first meet, pay attention to the stranger’s nose

These 10 little things a man always notices in a woman Do you think your man doesn’t understand anything about female psychology? This is wrong. Not a single little thing can be hidden from the gaze of a partner who loves you. And here are 10 things.

Surprise: Husbands Want Their Wives to Do These 17 Things More Often If you want your relationship to be happier, you should do the things on this simple list more often.

Heater fan replacement procedure

The first step is to remove the positive terminal from the car battery to turn off the power supply to the old motor. After this we perform the following steps:

in the engine compartment of the car, remove the fan casing and unscrew the screws that hold the part in place;
remove the air supply grille, which is secured with special bolts;
remove the rubber seal located directly under the grille;
remove the dashboard from the driver's seat and disconnect the wires connected to the motor;
slightly move the motor together with the protective casing, removing it from the clamps and removing the non-working part;
remove the fan from the casing;
we connect to the car’s electrical network and mount a new motor, after which we reassemble in the reverse order;
connect the terminal to the battery and check the functionality of the stove.

Reasons why the VAZ 2114, 2115, 2113 heater motor does not work.

The reasons why a fresh flow of cold air in summer or a hot stream in winter does not come from the air ducts of your VAZ 2113, 2114, 2115 can be of two types:

mechanical
electric

Let's look at them in more detail.

Mechanical reasons why the VAZ 2114, 2115, 2113 heater fan does not work.

First of all, mechanical reasons include clogging of the air duct.

As you can see in the photo, leaves, branches and other debris get under the casing and clog the air duct of the heater motor. Debris can get into the section with the blades itself and jam the stove fan. Usually before this, a whistle or grinding noise is heard from under the soot space.

Mechanical reasons for the inoperability of the stove motor include jamming of the blades due to improper installation of the stove fan housing. When removing the stove motor, the latches securing the two parts of the housing are often damaged. And if these parts are not firmly fixed to each other, then there will be a gap between them and the air flow that should go into the cabin will fall into this gap. Also, parts of the housing may generally jam the motor blades, then it will not spin at all.

Fuse.

Let's follow the scheme given at the beginning of the post. If your heater fan does not work together with the heated rear window, then the problem is 100% in the fuse. Check fuse f7 in the mounting block, if it is ok, then use a multimeter to see if the plus is coming to it from the ignition switch unloading relay. To do this, with the ignition on, place one multimeter probe on the fuse and the other on the car body. If everything is in order, look at the circuit from the fuse to the speed switch and the heating switch.

Heater fan speed switch.

We figured out the fuse - let's move on. And then we have the stove motor speed switch. To check it, remove the connector from it. The connector has three inputs nearby and one is located, as if separately from them. We connect any of these three inputs with a wire to the one that stands separately. If the motor starts working, then the speed switch is to blame; if not, we move on.

Additional resistors.

If the fan works, but only at the third (fastest) speed, then the additional resistors are to blame. In the third mode, power is supplied directly to the fan, bypassing additional resistors, so it does not work in other modes.

Heater motor VAZ 2114, 2115, 2113.

If checking all the components listed above shows they are working, the reason is in the stove motor itself. Most likely it is burned out or has a bad mass. To check, remove it and connect it directly to the battery (the black wire screwed to the body is a minus). If it works, it's a bad mass. If it doesn't work, we change the motor.

How to remove the fan of the VAZ-2114 stove yourself

The ease of use of the car in the cold season depends on the quality of the heating system. Therefore, it must be maintained in good condition. But alas, no one is immune from failure, and you need to be prepared for any problems. For example, one day you may hear suspicious sounds from the heater fan or not hear them at all. It is quite possible that the time has come to change the motor, but in order to do this, you first need to get to it. Today we’ll talk about how to remove the heater fan on a VAZ-2114 and why it can break.

Reasons for refusal

If your heater does not work and the motor shows no signs of life, you definitely need to look into the system and find out what is wrong there. However, first you must clearly understand the reasons for the failure and whether the motor can be repaired. Let's look at the main problems.

Fuse failure. If a short circuit occurs somewhere in the circuit, the fuse will save the fan from damage. Replacing it is completely easy and there is no need to buy a new device. However, it is also important to find out exactly where in the circuit the short circuit occurred and for what reason. If you do not solve this problem, the next installed fuse will blow in the same way.
Poor contact in the mounting block. This malfunction occurs on a wide variety of cars, and the VAZ-2114 is no exception. Most likely, oxidation has occurred.
Problems with the ignition relay. The motor turns on only after the car has warmed up. If such problems occur, you should check the relay, which is most likely sticking. Replace it and check if the heating works.
Heating operates only at third speed. A feature of the fan power circuit is direct connection only at speed 3; other modes are connected through a resistor. If you encounter such troubles, then it’s time to replace the resistor.

The above list of “diseases” is far from complete.

There are other fan malfunctions, but we will not dwell on them in detail. Next, we’ll talk about how to dismantle a part for repair or replacement.

How to remove the device

The dismantling procedure is not as difficult as it seems. Although you will definitely have to spend time on it. Let's look at step-by-step instructions that will help you quickly remove the fan and fix any system malfunction.

Open the hood and remove the plastic trim. To do this, you need to twist its fasteners and then carefully remove it.
Then it’s time for the rubber seal on the hood. It should also be removed.
The heater housing is visible in front of you - the last obstacle before your cherished goal. It also needs to be removed. When removing it, be careful not to damage it.
Now you can already see the fan and the fasteners on which it is held. The first step before removing the device is to tighten the two bolts.
Return to the car interior and locate the positive power cable under the dashboard. Turn it off. Next in line will be the negative cable. It is secured with a special nut that must be twisted.

There are no more obstacles left. Now you need to remove the fan. Please note that this is done on the right side and at a slight angle. As you can see, there is nothing complicated in this procedure. It just takes a little time and care. If any points remain unclear to you, you can use the video instructions on our website.

Replacement

Replacing a failed unit is not difficult. Follow certain rules and sequence of your actions to achieve the desired result.

Disconnect the negative terminal from the battery.
Lift the hood and in the engine compartment, remove all the mounting bolts that hold the plastic trim.
For now, the overlay can be moved to the side so that it does not interfere with work.
Remove the rubber seal, which also has its place in the engine compartment.
Remove the protective cover from your heater motor. So you have reached the desired object and can begin replacing.
On the sides of the motor are two bolts that hold your fan in place.
Now go into the interior and remove the driver's side panel. There is a positive plug located there, which must be disconnected.
Next, look for the negative wire. It is held on by one nut, which must be unscrewed.
The disconnected wires are inserted into the hole in the body of your car, passing through the rubber seal.
Remove the damaged motor. To do this, you need to turn it and pull it out through the right side.

As you can see, removing the device is not difficult. Having studied the condition of the fan motor, we can draw a conclusion regarding the need to replace it. Sometimes car owners get by with simply repairing brushes or replacing fuses.

Replacing the heater motor on a VAZ 2114

When a car's heater fails, the fan motor is often the cause. You can detect such a malfunction by the characteristic sounds that occur when you try to turn on the heater.

Examination

To make sure that the motor is the cause of the heating system malfunction, you should carry out a simple but indicative procedure:

Start the car;
Turn on the first, second and third speeds of the stove alternately;
If there are no sounds indicating the start of the fan operation, the motor has failed;
If the fan did not turn on at speeds 1 and 2, but started working at speed 3, then the cause of the problem may be a switch or an additional resistor.

Causes of failure

The motor may not work for several reasons. Each of them requires separate consideration. Therefore, we invite you to familiarize yourself with the possible causes of fan failure in our table.

Cause

It is important to know

There is no contact in the mounting block

This is a common problem in cars and occurs as a result of contact oxidation or loss of connection strength.

Ignition relay sticks

The heater turns on only after the car has warmed up. Therefore, it is recommended to check the condition of the ignition relay if the fan is not working. Replace relay if necessary

The heater only turns on at speed 3

Speeds 1 and 2 are activated by an additional resistor, and in mode 3 the current goes directly to the motor. In this situation, you should replace the additional resistor or check its contacts

The heater switch is broken

Here we are talking about problems with the electrical target or fuse. To check their condition, you can use a test lamp

Problems in motor design

If everything is fine with the switch and current, but the fan does not respond, you should check the level of overheating of the motor, its ground contacts or brushes for sticking

The first step when replacing the heater motor is to disconnect the battery.

Motor location

Replacement

Replacing a failed unit is not difficult. Follow certain rules and sequence of your actions to achieve the desired result.

Disconnect the negative terminal from the battery.
Lift the hood and in the engine compartment, remove all the mounting bolts that hold the plastic trim.
For now, the overlay can be moved to the side so that it does not interfere with work.
Remove the rubber seal, which also has its place in the engine compartment.
Remove the protective cover from your heater motor. So you have reached the desired object and can begin replacing.
On the sides of the motor are two bolts that hold your fan in place.
Now go into the interior and remove the driver's side panel. There is a positive plug located there, which must be disconnected.
Next, look for the negative wire. It is held on by one nut, which must be unscrewed.
The disconnected wires are inserted into the hole in the body of your car, passing through the rubber seal.
Remove the damaged motor. To do this, you need to turn it and pull it out through the right side.

Removing the motor-fan
As you can see, removing the device is not difficult. Having studied the condition of the fan motor, we can draw a conclusion regarding the need to replace it. Sometimes car owners get by with simply repairing brushes or replacing fuses.

Price issue

We advise you to choose a high-quality motor for replacement so that later there are no problems with its performance.

The motor itself will cost you about 500 rubles, and for the assembled device you will have to pay about 1000 rubles. Which option is preferable for you, decide for yourself.