How to change brushes on a VAZ 2114 stove. What is a heater fan. Exact withdrawal algorithm.

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.

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.

The fan motor is noisy and malfunctions

• This indicates a problem in the VAZ 2114 fan cooling system, but provided that the above problems are corrected. The cause of a motor malfunction may be: equipment failure, or poor contact, which occurs as a result of sticking fan brushes;

The result of troubleshooting may be a complete replacement of the motor, which has repeatedly begun to fail you.

• Problems lie in the operation of the power unit;

This may happen if there is no power to the motor. Problems should be looked for in the following:

1. 1. Poor contact on the fan.
2. 2. Motor brush sticking.
3. 3. Motor performance.

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

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.

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

Where is the heater fan located and how to remove it?

Practical training on dismantling the VAZ 2114 heater begins with determining its location. If you follow the sound, the heater along with the fan can be found under the windshield in the space under the hood. In general, the factory says that you can dismantle the engine without removing the heater. For this purpose, the following technique has been developed, which we are happy to share:

1. It is better to remove the terminal from the battery.
2. Now we go into the interior and find the terminal connector for the heater motor power wire.
3. You need to try to unscrew the lower nut that secures the heater housing to the engine shield. This is necessary in order to disconnect the ground wire of the electric motor.
4. Now you need to somehow get to the engine itself. To do this, so as not to remove the entire heater, you can try to unscrew the two screws that are visible under the hood on the fan casing.
5. The only way to get to the motor is to remove the casing.
6. The two fan housing screws are now visible. They need to be unscrewed.
7. But this is not enough, because the fan will not fit into the gap between the engine shield and the air intake grille. It will also have to be removed. To do this, you need to unscrew five more bolts.
8. But the most difficult thing is to free the fan along with the case. Here, only ingenuity, patience and Buddhism can help solve this problem. . In fact, this is perhaps the most difficult task.

Further repairs and disassembly should be carried out only if there is no way to find a new engine assembled with a fan, and only if no one is going to remove the turbine from the shaft, otherwise the entire assembly will have to be thrown away, since the factory alignment cannot be achieved under any circumstances. Verified.

Sources

• https://vashalada.ru/mashiny/vaz-2114/zamena-motorchika-pechki-vaz-2114.html
• https://avtocity365.ru/ustrojstvo-i-ekspluatatsiya-avtomobilya/zamena-motorchika-pechki-vaz-2114/
• https://vazweb.ru/desyatka/otoplenie/zamena-motorchika-pechki-vaz-2114.html
• https://provaz2114.ru/dvigatel/kak-snyat-motorchik-pechki-na-vaz-2114-zamena-motorchika-pechki.html
• https://gt-models.ru/testy/motor-otopitelya-2114.html
• https://venteler.ru/kak-pomenyat-ventilyator-pechki-vaz-2114/
• https://akki-carsh.ru/avtoremont/motor-otopitelya-vaz-2114.html
• https://carfrance.ru/zamena-ventilyatora-pechki-vaz-2114-poshagovaya-instrukciya-ot-a-do-ya/
• https://ladamaster.com/zamena-ventilyatora-pechki-vaz-2114

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Fan in heating system

The fan plays the main role in the operation of the heating system of the machine.

Any car is not immune from failure of not only the fan, but also the heating system as a whole.

To understand the issue of why the fan does not work, you need to: start the car, switch the heater at speeds 1, 2, 3 in order. If no additional sounds appear, the fan simply does not work.

If the fan does not turn on in the first two speed modes, but starts working in the third, the problem is in the functioning of the additional resistor, or in the switch itself.

Causes of malfunctions in the operation of the stove motor

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

• The fuse has blown.

Replacing it is not difficult, but the main problem lies in the electrical circuit, i.e. a short one appeared in the chain. The first step in troubleshooting this problem is to find the source of the short circuit. It is important to know that an F-7 fuse with a voltage of 30-A is attached to the stove. In addition to the heating system, it is responsible for the operation of the cigarette lighter, heated mirrors, glove compartment lighting, and the electric motor for washer headlights. Therefore, if the fuse fails, these devices will also fail.

• Problems with the contact in the mounting block.

This disease is quite common in many machines; it is caused by poor contact or oxidation of the contact.

• Sticking in the ignition relay.

The heating system is turned on only when the car is warmed up. Accordingly, if this problem occurs, it is necessary to check the ignition relay and, if necessary, replace it.

• The stove turns on only at speed 3.

The fan is turned on at speeds 1 and 2 through an additional resistor, and at speed 3 the current flows directly to the fan. Therefore, this problem indicates the failure of the additional resistor.

• The heater switch has failed.

In this case, the problem lies in the electrical circuit, or in the fuse. To check its functioning and switch speeds, you can use additional means - a 12V lamp and two wires soldered to it. Actions are carried out in a certain sequence:

1. First, disconnect the center console for easy access to the heating system switch.
2. After this, we start the car and connect the negative wire from the lamp to the body ground, periodically connect the second wire of the lamp to the speed outputs 1, 2, 3 on an additional resistor.

A lit lamp indicates normal operation of the switch. In case of the opposite result, connect the lamp to the wire of the positive switch. If the light does not turn on, this indicates that there is an open circuit in the circuit or the fuse is not working.

• Problems with the heater motor.

The switch works properly, current flows, but the fan itself does not respond, the reason lies in the following points: the motor may have overheated, the fan ground contact is weak, or the motor brush may be stuck.

Main reasons

Most often, the VAZ-2107 stove hums when it is turned on “cold” until the car is warmed up. After some time, the whistle becomes quieter or disappears completely. If you have exactly these symptoms, it means that the reason why the VAZ-2107 stove is noisy is the unevenness of the expansion coefficients of the shaft and brass. In this case, excess noise appears at very low temperatures or due to wear and tear during prolonged use of the vehicle. This problem can be solved by replacing the electric motor or bushing, which will need to be further processed using a rubber.

Another reason why the VAZ-2107 heater motor whistles and creaks may be that the lower part of the housing has come unfastened. There are special hooks called clasps. Sometimes they stop fixing the body, and then the only way out is to return them to their place.

In addition, broken tabs held in place by clips can cause noise. Unfortunately, in this case the heater can only be repaired by purchasing and installing a new housing.

Another common problem that causes the VAZ-2107 stove to whistle is the textolite washers, which are necessary to remove the axial lift. They are located on the sides of the motor shaft. To solve this problem, you need to disassemble the fan motor.

Thus, the main problems are:

Why do problems occur in the heating system?

When the heater on a VAZ 2114 does not turn on, this is a serious problem for drivers at any time of the year, but with the onset of the cold season it becomes especially important. The main reasons why the heating system refuses to work are various reasons, ranging from the electrical system to problems with the pump.

Operating principle of the stove:

1. When adjusting the temperature of the air supply to the solon, it is necessary by opening or closing the heater tap.
2. It is thanks to the tap of the heating system that cooling liquid enters the radiator, which contributes to the formation of heat. The temperature of the coolant with a heated engine reaches about 94 degrees.
3. By switching the stove to different speed modes from the first to the third, the speed of the heater fan is adjusted, facilitating the flow of warm or cooled air into the cabin, depending on the position of the tap.
4. Using panel dampers, you can regulate the air flow exactly in the direction you need.

Knowing the principle of operation of the heater system, you can understand where the cause of problems in the car lies.

Stop trash

In some cases, you can negotiate with the engine by lubricating the bushings with graphite lubricant. There is no guarantee that he will calm down, but you can try. Throw it away anyway. The noise, creaking and squealing of the fan can be attributed not only to the engine itself. Often there is a banal clogging of the air duct and debris getting into the fan. The narrowness of the situation lies in the fact that it is almost impossible to control it without disassembling the fan.

Whatever you want, you have to fight for the heat in the car. And if this heat is also quiet, it is priceless. However, it is better to try to prevent debris from getting into the air duct, so the VAZ 2114 will delight its owner with a warm and quiet interior. Good luck on the roads!

An electric motor driven fan is used to force air flow into the internal heating system. Thanks to this fan, the efficiency of the heater increases.

Replacing a heating system fan

How to replace the heater motor on a VAZ 2114 worries many car owners. Replacing the VAZ 2114 heater motor implies the following steps:

• First, you need to remove all the bolts in the space under the hood that secure the plastic trim.
• Remove the cover for ease of use.
• Remove the rubber seal from the hood.
• Remove the casing protecting the heater motor.

Thus, we get to the fan, then:

• Remove the two bolts securing the motor from the sides.
• Then go into the interior and under the panel on the driver’s side you need to find the positive wire plug and unfasten it.
• Next, find the negative wire secured to the nut and unfasten it. These wires can be inserted into the hole in the machine body through a rubber seal.
• We take out the heater motor by turning it at a certain angle and remove it from the right side.

If it is necessary to replace the heater fan of a VAZ 2114, a new model is purchased accordingly and the entire system is assembled in the same way, but in reverse order.

Replacing the fan on a VAZ 2114 is feasible for every car enthusiast, you just need to set aside a little time for this.

How much a VAZ 2114 heater motor costs depends on purchasing it separately or assembled with a housing. Therefore, the price for a VAZ 2114 heating system motor is approximately 500 rubles, the price indicator complete with the housing will be around 1000 rubles.

But, when the switch is working properly, voltage is supplied normally, then most likely the motor has burned out, but it is possible that there has been a violation of the ground contact.

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 the VAZ 2114 heater motor

First, you need to move the front seats as far back as possible and lower the backrests. It is recommended to put covers or a blanket on the chairs so as not to get dirty during work.

Then the clamp secured to it with 3 tightening bolts and the same number of screws is removed from the steering column. It is necessary to remove the sills and side trims.

Now you will need to pull the front panel in your direction, after unscrewing 6 screws.

Before removing the panel, you will need to disconnect all connectors. A connector for connecting to a PC will open; The screws that secure it must be unscrewed.

Subsequently, the clamp holding the wiring is unhooked and the dashboard is removed.

Having enlisted an assistant and prepared the caps and a container for collecting coolant, you need to close the heater valve and unscrew the clamp on the upper pipe. The last one needs to be pulled off. Then perform similar procedures with the lower pipe.

Now, having removed the old stove, you can install a new one in its place. For the VAZ 2114, replacing the car heater motor is completed by adding fluid and installing the removed parts.

Many motorists have encountered the fact that the heater fan on a VAZ-2114 has failed. But not all of them know that it is quite easy to replace it with your own hands, and it is not necessary to pay a small amount to a car service center. On average, the entire process will take up to half an hour and will help save significant money.

Location and principle of operation

On the latest VAZ models, the heater design is practically the same. The heater motor is located in the middle of the front dashboard; it operates in three modes.

Using the regulator, you can select a specific heating zone - interior, windshield or feet. If the fan breaks down, the heated air remains near the radiator and does not go into the cabin.

The efficiency of the heating system in this case drops to zero.

The stove motor operates in several modes

Main causes of malfunction

Most often, the system stops functioning normally for the following reasons:

1. Fuse F-7 with a voltage of 30-A does not work. The fuse is also responsible for the operation of the cigarette lighter, headlight washers, and lighting in the glove compartment, so it is not difficult to identify this malfunction.
2. Oxidation of contacts on the motor block.
3. The ignition relay is stuck. If the heater motor starts working only after the engine has warmed up, then the reason is a faulty relay.
4. Resistor failure. This element is responsible for the operation of the stove in different modes. If the motor turns on only in mode 3, then the resistor is faulty and needs to be replaced.
5. The heater motor itself burned out.

Advice: To determine the exact cause of poor stove performance, we recommend sequentially eliminating each of the above points.

Replacement instructions

If the motor starts to malfunction, then it is better to immediately replace it with a new one, since it is almost impossible to set it up for normal operation. We recommend purchasing the device from official stores, where they provide a quality guarantee. The average price for a motor is 500–600 rubles.

List of tools and consumables

1. Set of wrenches.
2. Crosshead screwdriver.
3. Fan or complete set with motor assembly.

How to replace

The entire repair will take you no more than an hour, we start by disconnecting the negative terminal of the battery.

1. We disconnect the positive power cable of the heater motor, which is located under the instrument panel.

   
   Disconnect the power cord

2. We go into the engine compartment and remove the two bolts that secure the fan shroud.

   
   Unscrew the bolts that hold the fan shroud

3. We unscrew the nut that presses the “ground” of the motor.
4. Unscrew the fan mounting screws.

   
   Using a screwdriver, unscrew the two bolts

5. Remove the screws securing the air intake grille and pull it out.

   
   We remove the grille after the two bolts have been unscrewed

6. We dismantle the motor in the casing by moving the housing towards itself and removing it from the hook.

   
   Dismantling the heater motor

7. Rotate the device 90 degrees and pull it out of the casing. Now you can change the part.

Video on replacing the heater motor on a VAZ 2114

To quickly repair the stove, you need to determine the cause of the malfunction. If the engine runs intermittently, it is better to immediately replace it with a new one. Using a simple tool and step-by-step instructions, you will quickly replace the motor, saving on car service costs.

• Alexander Orda
• Print

The process of replacing a fan on a VAZ-2114

Heater fan

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:

Fan selection

Now that the process is clear and discussed, it is necessary to consider which stove fan is suitable for the VAZ-2114. To do this, first turn to the spare parts catalog. In addition to the original spare part, a number of analogues were found that are recommended for installation.

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:

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

The whole assembly is assembled

Or they buy the entire spare part assembled, here are the part numbers:

Which motor to choose

When choosing a replacement device, it is recommended to purchase domestically produced fan motors, which are originals produced at AvtoVAZ. Their number is indicated in the catalog as 2108-8101078. They are quite universal and are installed on VAZ models 8 to 9 and 13 to 15, making them easy to find for sale in any car store.

Among the available, but at the same time proven, analogues, it should be noted such as: Fenox HM 81002 made in Belarus and Master-sport 2108-8101078-PCS-MS, made in Germany. Both of these motors have approximately the same cost (around 1,500 rubles) and are of equally high quality.

Fenox heater motor

If there is a desire (or need, for example, due to a damaged air duct) to purchase and install the entire fan assembly, then preference should be given to the Pekar 2108-8101091 and Luzar 2108-8101091 models. They combine high quality workmanship and budget cost.

Pekar stove motor

Thus, replacing the motor or even the entire fan with your own hands is not difficult. The most important thing is to take your time and first check all possible causes of the malfunction, and only then proceed with replacement.

conclusions

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.

When the heater in your car breaks down, there is nothing good about it. If the breakdown occurred in the warm season, it can hardly be considered critical. But if this happened in severe frost, things are bad for the car owner, since in winter he will not go far with a faulty heater. Most often, the stove on a VAZ 2114 stops heating due to a breakdown of the electric motor. Almost all car enthusiasts can replace a heater motor; the main thing is to learn how to do it quickly and correctly.

What to do if heat transfer from the stove is low

We unscrew the passenger dashboard from the side. Take a close look at the pipes coming out of the furnace. Assess how hot they are. If they are cold, they are clogged and need cleaning. After cleaning them, monitor the engine using a sensor.

What should I do if the replacement did not work and the engine still does not start?

To avoid unforeseen situations, the best way out of their situation is to contact a car service.

Comfort in a modern car should be quiet. That is, all devices and devices that must operate silently must be quiet, otherwise, due to the singing choir of the air conditioner, heater, windshield wiper motor and washing machine, the sound background may not be the most favorable for traveling. One of the soloists in this symphony may be a stove fanatic, so we'll look at some ways to combat this.

Content:

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.

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.