How to change the heater motor on a VAZ 2115 with your own hands

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. 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.

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. 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. 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. 3. When the stove switches to different speed modes, the fan speed is regulated.
4. 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.

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.

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.

Hello! If you don’t know how to change the heater motor on a VAZ 2114, 2115, 2109 and are wondering how to get the VAZ heater motor, then you have come to the right place. You will find answers to your questions below, and if, suddenly, something is not clear, ask your question in the comments.

How to disassemble the stove on a VAZ 2115

Stove VAZ- 2115

. Repair of main components

Reasons for ineffective heating operation

The efficient operation of the stove in cars of the fifteenth model in most cases leaves much to be desired.

It is a rare case when it produces the necessary heating of the windshield or legs. To eliminate all possible reasons for its ineffective operation, you can contact a specialist, or you can try to troubleshoot problems yourself, doing all the necessary work with your own hands.

To begin troubleshooting, it is necessary to drain the antifreeze from the cooling system. After this, you can begin to inspect the correspondence of the holes located on the dashboard with the outlet of the heater nozzles.

In most cases, it is shifted forward, which leads to its improper operation. This can be eliminated by filing the heater mounts. Removing the steering rack on a VAZ 2115 - youtube. Headlight washers for Volvo s60 how to disassemble headlight valeo volvo xc90;.

Of course, you will have to remove the dashboard, stove, and disconnect the radiator.

Heater radiator VAZ 2115

The radiator of the VAZ 2115 is practically no different from the models installed in other VAZ models, this can be clearly seen in the photo. Modifications may differ slightly, but the operating principle of all radiators is the same.

Very often it becomes deformed due to constant exposure to high temperatures, as a result of which the tightness is lost, on which the high-quality operation of the heater also depends. If necessary, the tightness can be restored by gluing bitoplast or foam rubber.

Having carefully examined everything and found no other defects, you can begin assembly. The places where the dampers are attached are lubricated with lithol, the housing joints are treated with sealant. If, when the stove , it hums because of the impeller, then you can balance it by winding a piece of wire around the rim of the blades. Now you can install everything in place.

How to replace the heater radiator on a VAZ 2114,2113,2115

How to remove the VAZ heater motor (heater motor)

how to change the heater radiator on a VAZ 2115

how to change the
heater radiator on a VAZ
2114

The reason when the stove does not heat well may be a stocking installed on the fan casing. How to remove the rear lights on a VAZ 2104. Its purpose is protection from debris. In a fairly short period of time, the casing becomes clogged, and there is no benefit from it anymore.

Replacing the VAZ 2114, 2115, 2109 heater motor with your own hands.

When the heater motor of a VAZ 2114, 2109 makes noise or it stops working altogether, it should be replaced.

Where is the heater motor for VAZ 2109 2114? It is located between the engine shield and the windshield, in the same section where the mounting block is located. We open the hood and we can see the casing of the heater motor housing.

First of all, remove the heater fan casing.

After removing the casing, you will most likely see a bunch of leaves around the body. We remove leaves and all debris so that it does not fall into the air duct when removing the stove motor.

Using a Phillips screwdriver, unscrew the two bolts securing the heater fan housing to the engine shield.

Disconnect the positive wire and unscrew the ground wire of the heater motor. They are located under the panel, closer to the middle of the engine shield.

The smart books say: in order to get the stove motor, turn it 90 degrees and take it out. But in practice, for some reason I never succeeded. I simply divided the body into 2 parts and took them out one by one. When you split the heater motor housing in half in the cold, the latches can crack, so it’s better to do this in a warm garage. To halve, you need to disconnect the 3 latches and remove the connecting rubber, which is located on the back side. Also remove the sealing foam between the stove body and the air duct.

The stove motor cover is attached to the body with two iron brackets, which can be unhooked and can be changed. Don't lose them! On one bracket the motor will constantly dangle, hum and whistle.

Unscrew the two bolts with a Phillips screwdriver and remove the motor from the housing.

Collection occurs in reverse order. Remember that the more tightly the stove body is pressed to the air duct and the more tightly the body halves are connected, the stronger the air flow will be.

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.

Lada 2115 HOXP › Logbook › No. 26 Replacement of the stove: Radiator, Faucet, Motor, filter! VAZ 2115.

It all started when I smelled antifreeze in the cabin. When I looked under the floor mats, I saw a puddle on the passenger side.

I had 2 options: 1. The heater radiator leaked. 2. The heater faucet is leaking. But there was a 3rd option: 3. Both the radiator and the heater faucet leaked.

In addition, last winter the stove screamed in the cold. And the desire to make noise in the engine shield for a long time pushed me to remove the torpedo and do EVERYTHING!) But about removing the torpedo is a separate topic, after which no one will ask about removing the stove. And yet: The stove is only held on by 4 nuts at the very top.

First, I took the stove home to: 1. Clean it (since no one had done this for the last 80,000 km). And my cabin filter was broken, so there was tin inside (I wrote about this here) 2. Replace the heater motor, because... whistles in the cold. 3. Replace the radiator, because I saw traces (albeit not critical) but smudges (I don’t really want to breathe poisonous antifreeze) 4. Glue the special. tape the stove joints.

When the time came to select and purchase a motor, radiator and faucet, the choice was the following: 1. Motor - there are mainly two types: a) On the sleeve - factory

950 rub. b) On bearings - manufactured by Luzar

Externally there are few differences from the old one.

It is held on by just two screws, and the body of the plastic snail is secured with latches:

2. Radiator - his choice was more interesting. The entire Internet writes that everything sucks, except for the DAAZ radiator. a) As I understand it, my native one costs the same. b) All other radiators have large “honeycombs” (i.e. there are fewer plates and the gap between the plates is larger). Bought: Radiator DAAZ

There is a protective sticker on the box (with a link in the QR code to the site, and with an erasable field, like in a lottery).

3. Stove faucet - I first bought it here, and then looked at the reviews. Basically they are: a) Standard (entirely plastic)

130 rub. b) Ceramic (one tube is plastic, one is iron - there is a ceramic damper in the iron) from 300 rubles. up to 1000 rub.

Ceramic ones also come from different manufacturers, but I bought the one that is least recommended. Well, I hope it works. I bought it from the same company that made the motor (Luzar)

Here is a photo of the OLD faucet (which leaked):

Replacing the faucet is as follows: 1. Drain the antifreeze. 2. Remove the cable. 3. Unscrew 2 hoses from the stove and 2 hoses under the hood. 4. Unscrew the two screws under the hood. - and in reverse order with a new faucet.

Step-by-step replacement process

1. Open the hood and disconnect the negative terminal of the battery.
2. 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).

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.

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.

A warm interior is the key to good and comfortable travel by car. A non-working stove can not only cause discomfort, but also become an argument against further travel by car at all. It’s one thing when you came to the garage, noticed a non-working heater and refused to move further in the car during the breakdown, but if this breakdown caught you on the road, the nearest service center is far away, and it is not possible to drive a car with a non-working interior heater, because the windshield becomes covered with frost and further movement becomes dangerous. Then the only option left is to either transport the car using a tow truck, or try to fix it yourself.

External view of the VAZ 2114 heater fan motor

When does the heater motor need to be replaced?

There are several signs that will tell a car owner that something is wrong with the heater motor. Here are the most common of them:

• When you try to turn on the stove, you cannot hear the hum of the motor, and this picture is observed at all three speeds.
• The motor supplies air at all speeds, but operates intermittently.
• The operation of the motor is stable, there are no interruptions in the supply of warm air, but instead of a uniform hum, extraneous sounds are heard, a grinding sound, which later develops into a piercing creak.

Examination

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

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.

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:

1. 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.
2. 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.

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:

1. 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.
2. 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 wire for the motor is located in the cabin, 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.

Unscrew an additional pair of mounting bolts with a Phillips screwdriver

The air supply grille is released and removed, revealing access to the motor held on a special bracket.

When all 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

Appearance and location of the stove motor

The device is located in the middle of the so-called torpedo and is a small DC electric motor to which a fan protected by a plastic casing is attached. This motor has three operating modes and is designed to supply warm air to three zones: on the windshield, on the passengers’ feet, or directly into the cabin.

The protective cover has been removed from the motor, the fan is visible

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.

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:

1. As the car engine heats up, liquid enters it, cooling the walls of the cylinder block and taking away heat.
2. Hot antifreeze enters the heater radiator, and the latter quickly heats up.
3. A motor (fan) is turned on, supplying flows of cold air, thereby cooling the element.
4. 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.

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.

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.

The process of replacing a fan on a VAZ-2114

As already mentioned, the process of replacing the stove fan will take quite a bit of time and even a novice motorist can do it.

The unit itself is located in the engine compartment, behind the engine shield. It is protected from dust and dirt by a plastic casing, which performs its functions well, but not always.

Before you begin the replacement process itself, you need to collect the tools. So, let's look at what you need: a set of keys (where would we be without it), a Phillips-head screwdriver and a new fan as a part.

Exact withdrawal algorithm

Now that the motorist is fully armed, you can consider the step-by-step instructions for replacing the heater fan:

1. We remove the negative terminal from the battery.
2. We find the fan power connectors under the dashboard and turn it off.

Turn off the power to the heater fan

Fan power cables

We unscrew the two mounting bolts of the protective casing from the engine compartment.

Unscrew the fastenings of the fan protective casing

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.

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.

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.

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:

1. 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.
2. 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 electric motor does not show signs of life in the first and second positions of the speed switch, but starts working in the third position (the fan is powered at the first and second speeds through a resistor, and at the third speed the current flows directly to the electric motor), the problem lies in the resistor or in the motor itself. switch
3. 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.
4. 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

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.

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.

Replacement

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

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

Follow the reassembly sequence strictly to avoid mistakes that could lead to even more serious problems.

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 price depends on whether you buy the motor complete with housing or separately.

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.

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 fails, designed to monitor not only the heater along with its components, but also the glove compartment lighting, the optics washer motor, etc. 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

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:

1. Unscrew the protective cover hiding the motor.
2. Then remove the screws holding it in place.

The fan clamps are simply unscrewed with a screwdriver

How is the replacement carried out?

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

1. Place the fan on a flat surface.
2. 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.

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.

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.

How to Change the Heater Fan on a VAZ 2115 - AVTOTRUE.RU

The heater fan does not work on the VAZ 2114. Probably, motorists often encounter a problem when the heater fan does not work on the VAZ 2114. This problem is accompanied by extraneous sounds that arise during the operation of the heater.

To understand the issue of why the fan does not work, you need to: start the car, switch the heater to speeds 1, 2, 3, all in order. For which the design is intended, if no additional sounds appear, the fan simply does not work.

On the contrary, the fan did not turn on at the first 2 speed modes, but started working at the third, due to a problem in the functioning of the additional resistor, or in the switch itself.

The VAZ 2114 heater motor does not work for the following reasons:

Changing it is not difficult, but the main problem lies in the electronic circuit, i.e. a short one appeared in the chain. A jerk to eliminate this problem, searching for the source of the short circuit.

It is important to know that an F-7 fuse with a voltage of 30-A is connected to the stove. In addition to the accounting heating system, it is responsible for the operation of the cigarette lighter, heated mirrors, glove compartment lighting, and the electric motor for washer headlights.

Connection diagram, resistors and fan relays

In principle, changing a fan is not difficult, but you will have to remember your service in the army and the vocabulary of the duty officer. We have placed the technical characteristics of the fan and its connection diagram on the page, if this will somehow help with dismantling. Just in case, if anyone cannot find the original fan, the engine must develop at least 4200 rpm with a current consumption of no more than 14 amperes.

Whistling and howling can be different at different engine operating modes. This is because the connection diagram assumes the presence of a resistor with a resistance of 0.23 and 0.65 Ohms. One limits the current for low speed, and the other is used to obtain the second speed. But this is a theory.

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.

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.