Motor gearbox heater damper vaz 2110 DIY repair

In detail: the motor-reducer of the damper of the vaz 2110 heater do-it-yourself repair from a real master for the site my.housecope.com.

The normal operation of the VAZ-2110 stove is impossible without the correct functioning of the gear motor, which is responsible for opening / closing the damper. As a result of this interaction, the air that enters the vehicle interior is heated / cooled depending on the situation. Therefore, when replacement or repair of the stove motor is required, it is impossible to hesitate. This work can be done with your own hands, without the help of specialists.

First of all, the car owner notes the impossibility of changing the temperature regime of the air that is supplied through the heating system. To check the condition of the micromotor gearbox, it is necessary to supply electricity from the battery to its motor with the installed middle position. Similarly, the controller is checked for operability, which also affects the ability to regulate the air temperature.

The most obvious sign of an inoperative gear motor is a significant decrease in the heating rate of the passenger compartment. If there is no ventilation regulation at all, then we can talk about problems with the heater wiring.

Problems with the operation of the stove are not always caused by the motor reducer of the VAZ-2110 heater flap. You need to know about other reasons, so as not to attribute them to an inoperative gearbox:

the inability of the electrical circuit to transmit voltage to the engine;
malfunction in the autonomous heating system control unit.

In the case when it is required to replace the micro-reducer, it is necessary to follow the work plan given below, for the implementation of which you will need two Phillips screwdrivers (long and short), a ten-spanner open-end wrench.

Video (click to play).

We take out the wipers from a special fuse, which is presented in the form of a rubber cap. But first, you need to unscrew the contact nut with a ten wrench.
We dismantle the frill, which is located in four plugs that perform mostly a decorative function.
On the side planes of the frill, you can see a couple of nuts that need to be unscrewed.
We look at the electric motor compartment and find a rubber seal that needs to be dismantled.
To disconnect the pipeline, you will need to unscrew the self-tapping screws, due to which the thermal radiators are held from the electric motor.
Next to the brake vacuum booster is the damper motor, which is fastened with three fixing screws.
At this stage, you can dismantle the electric motor by first removing the smallest block. The larger shoe has a wire attachment.
We install a new gearmotor in place of the damper sector.
To assemble the heating flap, we strictly follow the described plan, but all the steps are performed in the reverse order.

Some difficulties may be associated with the installation of a micro-gear damper. For this work it is necessary to involve an assistant. First you need to connect the contacts to the new motor. If the heater flap is turned against the clock, then cold air is supplied. This means that it is necessary to turn on the ignition of the car and switch the sensor on the heater control system so that it is located opposite the blue dot. The micromotor gearbox can be checked according to the opposite scheme, which involves turning the damper in the direction of the clockwork and installing the sensor near the red mark. The micromotor must crank more than it normally does. The square can be treated with a special lubricant to make installation easier.

During the installation of the motor, attention must be paid to the coincidence of the holes for the self-tapping screws.The invited helper must rotate the temperature regulator and press on the electric motor. If the squares match, we can talk about a successful replacement of the gearbox, the operation of which will be carried out at a high level.

In some cases, you can observe incomplete entry of the square along the length of the damper. Do not get upset ahead of time, because even when the micromotor gearbox enters only a third, its functioning will still be at a high level. The reducer will need to be scrolled several times from one mark to another in order for the heating system to fix the operating range.

If, nevertheless, you have a desire to repair the gear motor, and not just replace it with a new one, then the next part of our article will be of interest to you. It should be noted right away that the details of the new sample differ significantly from their predecessors.

First of all, we will consider the principle of repairing gearmotors on the VAZ-2110 of the old model. Such a part can have a plastic housing or a metal one. It is much easier to work with the first option, but a gearmotor in a metal case will be difficult to remove and not wrinkle at the same time.

We already know how to dismantle such an element, so we will proceed directly to its disassembly and troubleshooting. We remove the adapter from the shaft, which is inserted into the damper and serves to transfer rotational energy. You can safely pull on yourself, since there is no glue and stoppers here.

There are latches along the entire perimeter of the case. To deal with them, you need to use flat screwdrivers that need to be driven between the latch tab and the body. Raise the lug quite a bit and insert the second screwdriver next to the latch. The halves will open from the pivot movement. Such actions will need to be performed several times throughout the body.

Care must be taken not to drop out small parts that can get lost. We completely remove the second half of the body, pull it up from the axis and remove the three gears. An electric motor with a gear and a shaft should remain on the second half of the housing.

When removing the electric motor, you need to pay attention to the worm gear, at the end of which there is a segment responsible for centering the shaft and holding the pair of gears in mesh. The part is small and can easily get lost. The motor housing has a set screw that prevents the motor from turning inside the housing.

We remove the motor, remove the gears and the segment from the shaft. We carefully inspect all parts for breakage and defect. If nothing of the kind was found, then we investigate the gear motor further. In the place where the wires are connected, the parts of the motor are fixed. We unbend it with the tools at hand and release the bottom part.

Again, we act carefully and carefully so as not to break or lose anything. There is a permanent magnet inside, which, due to the magnetic field, holds the motor armature in place. In order not to make trouble, you need to take the unit in your hand and push it down with your finger on the shaft. With the fingers of the other hand, grab the anchor and divide the motor into parts. Do not grab onto the windings as they are easily damaged. We see two brushes that are attached to the bottom. Using a screwdriver, we pull off the brushes by their holders. There is a washer at the end of the armature, which prevents easy removal of the brushes. There is no reason to remove the puck.

The armature has three windings that must be carefully inspected and checked by a tester. We also inspect all dismantled elements for critical abrasions, melting, and soot deposits. The assembly of the gearmotor is carried out in the reverse order, carefully and extremely carefully.

Dismantling of a new type of geared motor is carried out in a similar way, which was described above. When the part is in your hands, you need to disassemble the case, which is held by the clamps. They need to be carefully pry off with a flat screwdriver. First of all, you need to consider the motor for faults.To do this, you need to connect it to the connector located in the engine compartment. The micromotor must be disassembled, for which it will be necessary to bend the pressed side. It is important to note the position in which the cover is in relation to the body. This will help keep the motor in the correct polarity during assembly.

If you find a malfunction in the motor, you will need to look for a break. When the part is running, it is necessary to lubricate it and the gears on the gearbox. A silicone based grease that can be used over a wide temperature range is ideal. It may be necessary to replace the damper position sensor, it is worth paying attention to. The assembly of the part is carried out in strictly reverse order.

Repairing and replacing a stove gearmotor is not the easiest job that a car owner may face. But there is nothing super complicated in this either. If you have the desire, minimal experience and imagination, you can successfully eliminate the problem with the car heating system and create a comfortable climate in the cabin of your "ten".

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So first disassemble the micromotor reducer: use a screwdriver to pry on the corners and remove the cover. Inside is a conventional brushed motor. Checking the condition of the brushes:

Image - Motor reducer of the heater damper VAZ 2110 DIY repair

We check the motor windings with a tester (the device is the same as the generator windings) - we call them with a star.

Then we unscrew the gearbox (do not lose the washers, which are needed to adjust the protrusion of the motor gear). Checking the gearbox: hold the body and slowly turn the lever. The gearbox must not jam. Lubricate.

Checking the resistor (shaft position sensor) showing to the SAUO block the position of the damper and the thrust of the gearbox. For one complete revolution, the resistance of the resistor should change two times from 6K to 0, and between these values - infinity.
With a smooth rotation of the lever, the resistance should not jump, but should change evenly.

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Repair old-style MMR ..

Did you manage to repair the old model MMR?

If in your VAZ 2110 the stove has stopped heating the interior, then the reason may be a damaged gear motor. When you switch the heater handle, the faulty motor does not move the damper, hence the cold in the car. To check how the motor-reducer of the heater damper of a VAZ 2110 car works, you need to get it out. This material describes in detail the process of dismantling the heater motor and its subsequent replacement. Also, the reader will find out why this element is needed in the VAZ 2110 and what kind of malfunctions it has.

It is worth checking in advance for the following tools:

Magnetic handle.
Phillips screwdriver - A standard length tool will do.
Key-head for 10 'with ratchet.
Parts cleaning brush.
A set of keys.
Short Phillips screwdriver.

In order for the replacement of the motor reducer of the stove in a VAZ 2110 car to be successful, you need to know the basic information about the unit. It provides for the closing and opening of the heater flap, the process is carried out using the signals of the block.

The configuration of the geared motor can differ significantly on the VAZ 2110 of different model years.

Depending on the mode set on the handle, warm or cooled air enters the passenger compartment. The unit is located under the hood on the steering wheel side, it is installed next to the brake booster, so it will not be difficult to find it.

If using the handle it is not possible to control the temperature in the cabin, then first of all they check the motor reducer of the VAZ 2110 heater. The performance check is carried out by supplying voltage from the battery to the unit with the handle in the middle position. From here you can start from whether a replacement is needed or not.

There may be several reasons for the failure of this device:

The integrity of the electrical circuit was violated, the power plant does not receive the supplied voltage from the battery, as a result, the motor reducer of the heater cannot work normally.
There is a malfunction in the autonomous unit that controls the heater, the reducer cannot provide the normal temperature of the stove.

Replacing the gear motor of the “dozens” stove requires a minimum amount of tools and time, but the work will go even faster if two people take part in it.

The preparatory process begins with the removal of the wiper arms.

It is necessary to unscrew the fastening nut of each lever, as shown below;

Installation of a new element and assembly of the heater is carried out in reverse order. The replacement is completed, it remains to check the operation of the damper after repair.

To check the functionality of the new damper motor, set the position of the stove to the blue dot on the left handle. After waiting about 20 seconds, you need to start the engine. The test cannot be carried out without a multimeter. It is necessary to measure the resistance between X1.1 and X1.4. If the new damper motor is functioning correctly, the voltage will be 800-1200 ohms (controllers 1333.3854, 1303.3854, 1313.3854), 3600-5000 ohms (models 1323.3854).

Now you need to check the operation of the damper at the red mark. In the first case, the resistance should be at the level of 3200-5000 Ohms, and in the second - at the level of 1200-1600. In some cases, the absence of the required indicator indicates a malfunctioning sensor. Due to the design features, this element cannot be individually changed, as a result, the entire gearmotor must be replaced.

The operation of this component is primarily affected by the service life of the vehicle. When a part fails, you just need to replace it with a new one, since its price is quite low and there is no point in trying to restore the old one. Below is a video instruction for replacement.

It is worth checking in advance for the following tools:

Magnetic handle.
Phillips screwdriver - A standard length tool will do.
Key-head for 10 'with ratchet.
Parts cleaning brush.
A set of keys.
Short Phillips screwdriver.

The configuration of the geared motor can differ significantly on the VAZ 2110 of different model years.

If using the handle it is not possible to control the temperature in the cabin, then first of all, the motor reducer of the VAZ 2110 heater is checked.The performance check is carried out by supplying voltage from the battery to the unit with the handle in the middle position. From here you can start from whether a replacement is needed or not.

There may be several reasons for the failure of this device:

The integrity of the electrical circuit was violated, the power plant does not receive the supplied voltage from the battery, as a result, the motor reducer of the heater cannot work normally.
There is a malfunction in the autonomous unit that controls the heater, the reducer cannot provide the normal temperature of the stove.

Replacing the gear motor of the “dozens” stove requires a minimum amount of tools and time, but the work will go even faster if two people take part in it.

The preparatory process begins with the removal of the wiper arms.

It is necessary to unscrew the fastening nut of each lever, as shown below;

Installation of a new element and assembly of the heater is carried out in reverse order. The replacement is completed, it remains to check the operation of the damper after repair.

Stove VAZ 2110 perhaps the most problematic and capricious mechanism in the entire car design. A stove or a faulty interior heater radiator on a VAZ 2110 is indispensable, given our cold climate. If in the summer a non-working stove may not bother you, then with the onset of the cold season it often turns out that the stove on the VAZ-2110 is blowing cold air. Today we will try to tell you in great detail about the device, repair and replacement of the heater on the top ten. For clarity, we will supplement the text with photos and videos.

Let's say right away that the design of the heating system on the “top ten” is fundamentally different from what was on the old VAZ models. The most important feature and difference between the interior heater is that stove radiator VAZ 2110 and its fan is not in the passenger compartment, but in the engine compartment. This design has its advantages, for example, to replace the heater radiator or stove fan, you do not need to completely disassemble the front panel (dashboard).

Another important difference is the electronic control of climate processes in the cabin. For this, the so-called automatic heater control system (SAUO). Photo of the SAUO block below.

By the way, the SAUO unit on the “dozens” of different years of manufacture is different. Since 1996, 4 types of SAUO controller have been produced. This should be taken into account when buying a unit as a spare part. It is this device that controls the temperature in the cabin and the operation of the fan. The temperature can be set from 16 to 28 degrees.

But how does this miracle device work? There is a temperature sensor or a ceiling air sensor with a built-in (very small) fan for air circulation on the ceiling of the “dozens” cabin.It is this sensor that sends information about the real temperature in the cabin, and the SAUO unit gives a command to the micro gear motor (MMP), which, in turn, opens or closes the main damper, which is responsible for the access of hot air to the cabin. When the temperature in the passenger compartment changes, the ceiling sensor gives a new signal, the micro geared motor is triggered by turning the damper, closing or opening the hot air access to the passenger compartment. Thus, the set temperature is automatically maintained. Further photo of the diagram of the air ducts of the VAZ 2110 heater.

Many owners of "ten" complain that at some point the stove constantly blows cold air and no turning of the handles of the automatic heater control system can save the situation in any way. There can be a lot of problems and malfunctions. For example, the SAUO controller itself, the ceiling sensor or the micro gear motor, which simply does not open or close the damper, is faulty. Another reason is the air (airlock) in the heater radiator, which is simply not able to heat the air passing through it. Further schematic image of the heater device VAZ 2110.

Often the reason for the poor performance of the heater "tens" is stove damper vaz 2110... The flap may not close tightly or open well. The heater flap itself is made of plastic, which can deform over time and work poorly. Many car owners buy a metal flap and change it on their own. How to check the performance and assess the condition of the stove damper? Quite simply, remove the central air duct deflector and here it is! We look at the photo.

Then you carefully examine the damper, turn on the stove, turn the regulators on the SAUO unit and see if the damper works at all. How does it move, whether it fits snugly. If she does not respond to commands, then the problem may not be in her at all. For one thing, you can see if the lever for redirecting the airflow from the glass to the legs works.

It is quite simple to determine the operability of the stove fan by noise. If the fan motor burns out, then naturally it will no longer work. True, before rushing to change the stove fan, you must make sure that the fuse has not blown. As we wrote above stove fan VAZ 2110 located not in the cabin, but in the engine compartment. To get to it, you will need to remove a special apron that separates the engine compartment from the heater housing, the vacuum brake booster and the wiper mechanism. The photo itself is below for clarity.

So we got to the stove fan, removing the apron and the heater cover. By the way, next to you you will see a cabin filter, in the casing a little to the left. It must be pulled out and cleaned. If no one has changed the filter before you, for many years of operation it is seriously clogged with debris and interferes with normal air circulation, which is sucked into the VAZ 2110 interior.

The radiator of the “dozens” stove is located in the same place as the fan, that is, under the hood (see photo above). To remove it, you must first remove the fan from the heater casing. If you notice a strange smell in the cabin, lift the rugs, if there are puddles of antifreeze or antifreeze, then stove radiator VAZ 2110 drip. Although they may no longer hold the clamps ... in any case, you will have to disassemble and find out the cause of the leak. Next, we offer a couple of video clips demonstrating the process of disassembling, removing the apron, stove fan, cabin filter and heater radiator.

Video of replacing the old-style “dozens” heater radiator.

Video of replacing the radiator of a new type of stove.

The heater in the VAZ-2110 car is represented by a separate system. Its first element is the heater itself - the unit responsible for the preparation of the supplied air.This device is located under the hood of the vehicle. It regulates the air flow rate and its temperature. The next element is an air distributor, the air ducts of which are located in the car's interior on the dashboard. For ten, a special heater "2110-01" is produced, which is distinguished by the presence of an evaporator in the air conditioning system.

The heater control circuit on this VAZ model is shown in the photo:

Many stove malfunctions occur during the change of seasons. With the onset of cold weather, drivers notice that the VAZ 2110 stove in their car does not heat well or does not work at all. Nobody ignores this malfunction, because it is better to always drive in a warm car. Among the breakdown options that may require stove repair:

impossibility of regulating the heater temperature,
malfunctions of the damper or gear motor,
leak in the radiator of the stove,
faulty ceiling temperature sensor,
malfunction of the SAUO control unit.

There can be several reasons for this malfunction:

malfunctions of the control unit,
damper malfunction.

Any of these breakdowns leads to incorrect operation of the heater.

If the heater controller is out of order, then the command to extend the damper may not be given. Therefore, immediately check the temperature sensor located next to the ceiling light. To carry out the check, you need to twist the temperature control lever from the left to the right position several times. The air flow temperature can be tactilely controlled. This check is based on detecting the operating condition of the temperature sensor in the extreme position of the handle. If the flow temperature changes only at the extreme position of the sensor, then it must be replaced. If it does not change significantly, you should look for the cause of the breakdown elsewhere.

To check the heater's performance, you need to remove the central deflectors. To do this, you need to bend the special antennae and move the flap with your hand. You can get to the latter through the engine compartment. Choosing this spare part, it is better to give preference to the aluminum, rather than the plastic version.
The largest volume of work is required by the radiator of the VAZ-2110 stove when replacing it, because for this you have to remove the entire stove. If you do the work yourself, you can save a lot of money. Read more about how to change the radiator here.

When the heater fan starts to "drive" only cold air, then we can assume that the stove is out of order. In modern models, dampers and regulators rarely fail, due to the fact that aluminum is used for their manufacture already at the factory. In 90% of stove breakdowns, the geared motor is to blame. This part is definitely subject to replacement.

In this case, the car is repaired in the following order:

we dismantle the wipers, remove the frill,
Move the frill to the side, use a short Phillips screwdriver to unscrew the three fastening screws,
unfasten the wires,
we connect a new gearmotor,
install it back.

It is better to carry out this type of repair with an assistant. It will switch the air supply from hot to cold and vice versa. After installation, the removed parts are reassembled in reverse order.

In domestic cars, this problem is very common. For this reason, feet freeze in winter, and windows fog up. It is very difficult to drive a car in such conditions. The only way out is to upgrade the air flow channels.

The order of work is as follows:

1. Make sure the stove is working perfectly. When its work is perfect, you can start upgrading.

2. Remove the panel, disassemble it into its component parts.

3. We solve the problem of blowing side windows. It can be solved in two ways:

Installing a new corrugated hose.
We glue all the slots on the panel.

To improve efficiency, it is better to choose the second option. We continue to work.

4. We glue all the gaps between the bottom and top of the panel with an anti-squeak.

5.We glue all holes with fasteners.

6. We are finalizing the stove dampers, which help direct air to certain zones. At the factory, this damper is poorly pressed against the body, because of this, part of the heated air is lost between the slots and walks somewhere in the panel.

7. We proceed to dismantle the damper. We remove it and completely remove the yellow factory seal.

8. Modelin glue the valve and seal all the cracks. This procedure will help the air flow to ideally exit the damper as intended. On the case, instead of a sponge, it is better to use Bitoplast10, which is diligently glued in several layers.

9. A lot of hot air is lost on the way to the glass from the driver's side. This large gap needs to be closed with a montage. It will not creak while driving.

10. We modernize the air ducts leading to the feet of the front passengers. The block that distributes the warm flow to the legs has a huge gap that must be repaired. For this, the use of a corrugated tube is allowed.

11. We completely remove the standard air distributor from its native place, insert corrugations into all the holes obtained and fill everything with foam. The pipe used must be exactly 40 mm in diameter.

12. It turns out that corrugations will be installed: one for the feet of the passenger, the other for the driver, and the third for the feet of the rear passengers. We put all this in place and connect.

In this case, you can modify some elements of the stove:

1. Replace the heater damper with an aluminum one. This will help keep the pieces warm and prevent deformation.

2. Replace the factory-installed "2110-01" heater on the heater model:

"2112-01" - does not have an air filter.
"2112-02" - equipped with such a filter, but does not have an air recirculation function.

These filters can withstand a mileage of 15 thousand kilometers.

3. Install pre-starting heaters, which will help warm up the engine and the car interior even faster.

In case of more significant breakdowns, it may be necessary to replace the stove. Most often, the replacement is made when carrying out a VAZ 2110 tuning with your own hands.

How to remove the VAZ-2110 stove and replace it can be seen in the video.

In order for the heater to serve for a long time and effectively, it is important to correctly use not only the device itself, but also to know some other rules.

If the vehicle has an air conditioner, it is most advisable to use it in wet weather.
Do not obstruct the hot air nozzles with carpets. It is better to raise them above the level of carpets.
In winter, before using the car, it is imperative to clean the glass from dirt and moisture.
In winter, it is recommended to use two adjustment positions of the installed heater. If you need to quickly dry the glass, you need to use the "all on the glass" position, and as soon as the car starts moving, you should switch to the "all in feet" mode.

As you know, the heating system plays an important role in the car. Thanks to it, the driver can feel comfortable in the cabin, even if the temperature outside the window is below zero. However, if at least one component breaks down, the functionality of the system may be impaired. If the heating system in your car has ceased to function correctly (warm air has ceased to flow), the reason for this may be the failure of the gear motor. That is, when you switch the temperature knob, the motor does not move the damper, which leads to this result.

Motor gearbox VAZ 2110, device, purpose and principle of operation

The opening / closing of the damper is performed by the motor-reducer of the heater damper due to the signals from the stove control system, as a result of which the air that enters the passenger compartment is heated or cooled as needed. Note that the configuration of the “dozens” gearmotor may differ significantly depending on the year in which the car was produced. The gearmotor itself looks like a small electric motor. Often, a broken device completely changes, since it is quite problematic to repair it.

Where is the geared motor

The unit is located in the engine compartment on the side of the steering wheel, it is installed near the brake booster, so it will not be difficult to find it.

Signs of a malfunction of the VAZ 2110 gearmotor

The most obvious sign of an inoperative gear motor is a significant decrease in the speed of heating the passenger compartment. But if there is no ventilation regulation at all, then, most likely, there are problems with the wiring of the stove. In addition, the car owner notes the impossibility of changing the temperature regime of the air supplied through the heating system.

There are several reasons for the failure of this device:

Violation of the integrity of the electrical circuit, the power unit does not receive voltage from the battery, as a result of which the motor reducer of the stove cannot function normally.
Malfunction of the autonomous unit controlled by the heater, the reducer is not able to provide the normal temperature regime of the heater.

How to check the operation of the motor reducer of the heater 2110

If using the handle it is not possible to control the temperature in the passenger compartment, first of all, the motor reducer of the heater is checked. To check the condition of the micromotor gearbox, supply electricity from the battery to its motor with the handle in the middle position. Similarly, the controller is checked, which also affects the ability to adjust the air temperature.

Tools, fixtures, consumables

To replace the stove motor gearbox, you will need the following materials and tools:

Slotted and Phillips screwdrivers.
Set of wrenches.

Replacing the old-style VAZ 2110 stove motor reducer

How to replace a new VAZ 2110 stove motor reducer

It is more convenient to work with the wiper removed, but it is not necessary to dismantle it.
Disconnect the two connectors from the geared motor, which is located on the right side of the vacuum brake booster.
Remove the three fixing screws.
Remove the geared motor from the heater housing, the stove damper will fall to the "cold" position.
To install a new geared motor, slightly turn the shaft towards “warm”, for which, with the ignition off, set the temperature to “hot” and turn on the ignition for one second.
Check whether the shaft fits and whether it is possible to fix the geared motor in the slot of the damper drive handle. If necessary, turn the shaft again by briefly turning on the ignition.
If you overdid it, turn the shaft to the “cold” position and repeat the operation from the beginning.