In detail: repair of the vaz 2110 heater damper DIY repair from a real master for the site my.housecope.com.
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 climatic processes in the cabin. For this, a 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 .
Video (click to play).
Many owners of "ten" complain that at some point the stove constantly blows cold air and no turning of the handles of the automatic control system of the heater 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 “tens” 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 Video of replacing the radiator of a new type of stove.
VIDEO By the way, when replacing the heater stove, you can use the opportunity to replace and cabin filter VAZ 2110 , so that later it would not be disassembled all over again. This will help you feel the fresh air and warmth of the repaired VAZ 2110 stove in the cabin.
The vehicles of the VAZ concern have one global disadvantage - the car's stove. Despite the fact that some flaws in the heating system have already been taken into account on VAZ-2110 cars, the situation with air distribution remains at an insufficient level.
Often with the onset of cold weather, drivers are faced with the problem of poor-quality operation of the car's heating system or with its complete failure. An unforeseen situation has to be resolved urgently, since improper functioning of the heater causes significant discomfort for the driver and passengers and reduces the rate of safe driving.
The temperature in the vehicle interior is adjusted by using the VAZ-2110 stove damper, which often fails. Let us consider in detail how to repair and replace the VAZ-2110 heater flap with our own hands.
In most cases, stove malfunctions appear with the arrival of cold weather, when it is one of the main attributes that provide comfort in the vehicle interior. A common problem in dozens of stoves is the incorrect distribution of warm air flows that enters the car interior. Often a situation arises when the stove does not respond to switching temperature modes and supplies only cold or only hot air. Both the first and second options bring significant inconvenience to the driver.
Most often, under such circumstances, the culprit is the VAZ-2110 heater damper. Dozens, which were produced before September 2003, are equipped with old-style stoves.They are equipped with plastic flaps, which tend to deform from high temperatures. And also very often the seat of the valve is destroyed, which makes it almost impossible to control it. When the valve is jammed in one position, only hot or cold air is supplied to the passenger compartment. If, for example, warm air flows towards the windshield, but hot air flows to the feet of the driver and passengers, then the damper does not open completely. In a situation where the valves do not move at all, it is necessary to check the micro-reducer - the drive mechanism of the part.
If the problem is with the heater damper itself, then when switching modes, a kind of clicks will be heard, which indicate that its shaft is turning. In this case, it is practically impossible to repair the damper; it is necessary to replace it with a new product. For these purposes, it is better to purchase a similar product of a new model instead of a standard plastic valve with a foam seal. The redesigned dampers are made of metal and have a rubber seal. The damper of the new sample is distinguished by high resistance to high temperature conditions, it adheres more tightly to the heater body, thanks to an improved rubber seal.
The next element that can affect the operation of the valve is a micro-reducer that controls its rods. If it is inaudible when switching temperature modes using the regulator of the traditional sound of the dampers, then the reason may be the micro-gear of the drive. In case of breakdowns, it is subject to replacement, because restoring its performance will not give long-term results.
The damper is repaired only in a situation when it is skewed or jammed in a certain position. It is very difficult to call it a repair; it is most often a forced measure to extend its operation for a short period of time. If there are problems with the valve or its drive, then soon you will still have to disassemble the stove and replace the failed parts.
The repair consists in installing the valve on a regular seat. To do this, you do not need to completely disassemble the heater. It is enough with the ignition on to try using manual adjustment to try to seat the valve on the seat. You can also remove the deflector and try to activate the damper with your hand. If it starts to move, then you have got a temporary remedy. However, as previously stated, this is a conditional fix. In the event of a part jamming, it will soon be replaced, since the stove will not function correctly.
If, after restoring the performance of the damper with the ignition on, it is only possible to manually control the damper, then the micro-reducer is the source of the breakdown.
Replacing the heater flap does not differ in significant difficulties, however, it requires the utmost care from the performer. In order to get to the valve, it is necessary to completely dismantle the stove. The main part of the work on removing the stove will be carried out in the engine compartment of the vehicle. Before dealing with directly disassembling the stove, it is important to initially disconnect the battery and drain the coolant from the heating system. After that, the windshield adjustment, soundproofing material, stove fan are dismantled. Next, you need to disconnect the clamp of the vacuum hose.
The next step is to remove the front part of the heater housing. The work is notable for significant difficulties, therefore, to simplify the removal of the stove body, you can additionally dismantle the instrument panel and unscrew the fasteners on the inside of the cabin that hold the stove. After that, you can lift the stove from the side of the engine compartment, remove the brackets and screws that secure the front of the heater.Only after completing this amount of work, the front of the stove can be dismantled without difficulty.
Next, you need to disconnect all hoses and pipes that fit the radiator. After that, the rear casing of the heater and radiator is dismantled. Only after the performed manipulations will access to the damper open. At this stage, the preparatory stage of work can be considered completed. After that, you need to proceed directly to replacing the VAZ-2110 stove damper with a new part.
Dismantling the damaged part and installing a new one is not very difficult. The only question that may arise during dismantling is how to remove the draft of the VAZ-2110 heater damper. Although it is plastic, it sits extremely tightly on the shaft. To dismantle it, you will need two screwdrivers. Use a thin screwdriver to lift the fastening lever, the second screwdriver unclenches the plastic protrusions of the pull. After disconnecting the rod, the upper latch will drop down on its own, since nothing else will hold it.
When installing a new part, pay attention to the fork located on the valve axis. It is important to secure it in such a way that it engages with the lever. If installed correctly, the heater flap must be in the raised position. Otherwise, it will be impossible to adjust it and replacing the part will not give the desired results.
VIDEO
When installing a new part, some drivers in parallel modify the rods of the stove dampers. The design of the rods has some disadvantages. When you switch the flap control lever, you can see that in any position of the lever, the air flow towards the driver's feet is blocked by either the first or the second flap. To improve the distribution of air flows, it will be necessary to shorten the adjustable draft by three divisions. For this purpose it is necessary to cut off the retractable rod end. Such a simple modification will help the damper to be in the required position, which will have a beneficial effect on air distribution. Warm air will flow evenly to the driver's feet, the side windows of the car and from the center deflector.
After that, all removed parts are installed in the reverse order, coolant is poured. Careful attention must be paid to the connection of pipes and hoses. Only sealed connections will guarantee the high-quality functioning of the heating system. After that, you can check the operation of the dampers and the entire heating system.
When replacing the damper of the VAZ-2110 stove, it is simultaneously necessary to carry out work to check and, if necessary, repair or replace the heater micro-reducer. It is located under the windscreen trim, where the vacuum booster is located. To dismantle it, it is necessary to remove two connectors - a micro-reducer and a motor, and also unscrew the fastening screws. After that, the motor is removed from the micro-gearbox and its operation is checked by connecting it to the stove control unit. If it is faulty, then you need to replace the part with a new product. Repair of the motor is also possible, however, only in extremely rare cases.
A working motor is installed in the micro-gearbox and is mounted on a regular seat. This must be done very carefully so that the motor pin correctly fits into the lever connector on the heater shutter.
VIDEO
After installation, it is necessary to check the movement of the damper drive levers by turning the temperature regulator in the vehicle interior. After checking the movement of the levers, it is necessary to assemble all the dismantled elements in the reverse order.
Malfunctioning of the VAZ-2110 heater damper is a common malfunction, especially in vehicles with old-style stoves. Breakage in most cases is due to the quality of plastic dampers, which are very often subject to deformation.Repair and replacement of the VAZ-2110 stove valve can be done by hand without the help of professionals. Before starting work, you need to understand that for a high-quality repair and restoration of the previous functionality of the heating system, a complete dismantling of the stove will have to be done.
Despite the laboriousness of the upcoming work, the result will delight the driver and passengers with warmth and comfort in the vehicle interior. The quality of the repair of the stove damper and its drive guarantees the stable operation of the car's heating system at any time of the year.
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General view of the metal damper VAZ 2110
In a VAZ 2110 car, interior ventilation is supply and exhaust. The temperature in the passenger compartment is controlled by an air damper that regulates the supply of hot air to the passenger compartment.
Before dealing with the causes of the malfunction, you should know the principle of the device and the rules by which ventilation is carried out.
If a control unit, a temperature sensor with a micro-fan, a micromotor, a heater flap position sensor fails, it is best to replace it with new ones, otherwise the cost of repairing a car may become much higher during its further operation with faulty components. If the moving damper emits a characteristic sound audible in the passenger compartment, and the air does not warm up, then the damper or its actuator is damaged. ... In this case, it is necessary to replace the heater damper of the VAZ 2110 or replace the drive of the damper of the VAZ 2110 heater.
Replacing the damper in the VAZ 2110 heater is performed in the case of:
Exit from the working state.
Permanent jamming. This happens when the damper is skewed or damaged from corrosion. In this case, the heater need not be disassembled.
On a VAZ 2110 car, dampers can be installed of the old or new type. The old one is made of plastic with foam insulation, the new one is made of metal, with a rubber seal.
Tip: In case it is necessary to replace the heater damper of the VAZ 2112, it is better to use metal devices of a new type.
We drain the liquid from the cooling system.
The "-" wire is disconnected from the battery terminal.
The cladding, windshield frame trim and soundproofing upholstery are removed.
The heater fan is removed.
The clamp of the vacuum hose is disconnected from the heater housing.
Remove the three spring brackets that secure the front heater air intake housing.
Advice: in order to make it easier to unscrew and tighten the screws securing the air collector, you can remove the instrument panel, unscrew the screws securing the heater and raise it.
The screws that secure the front case are loosened.
The front case is removed.
The radiator is freed from all hoses.
The rear heater casing is removed.
The radiator is removed from the heater.
A new damper is installed so that the fork located on the damper axis is in engagement with the lever .The damper must be in the raised position.
The heater is assembled in the reverse order of disassembly.
Filling with coolant.
The tightness of all connections and hoses, the operation of the dampers, and the entire heater are checked.
How the heater flap is replaced with a VAZ 2110 is clearly visible in the video, and the heater flap is replaced in a similar way on a VAZ 2112 model car.
By adjusting the dampers with your own hands, the supply of part of the air "to the glass" is eliminated when a lever that controls the air flows is installed in the heater in the position "in the chest" or "in the legs". The photo shows the control units for adjusting the damper.
Adjustment unit with vertical control lever
2 - adjustable rod for installing the damper "in the chest" - "in the legs"
The most common malfunction of the heating system drive is that only cold or hot air comes from the stove to the passenger compartment, regardless of the position of the handle designed to change the temperature of the air supply. When the motor reducer of the heater damper of the VAZ 2110 fails, the element is replaced after checking the operation of the SAUO and the motor reducer.
The central nozzles are removed, the air flow direction knob is moved all the way to the left, in which case all the air must go into the passenger compartment.
The ignition is switched on. The position of the temperature controller changes from "minimum" to "maximum", indicated by blue and red dots, respectively.
If it is found that the damper does not move, then, most likely, the motor gearbox of the heating system damper drive is jammed.
The ignition is turned on, the temperature knob is moved from the extreme positions to the left and right, the damper must be very carefully twitched by the hand, if it works, the reason is a malfunction of the gear motor. The motor is removed from the latter and repaired or replaced with a new one.
Thus, the replacement of the motor reducer of the heater damper of the VAZ 2110 can be performed.
VIDEO
The negative wire is disconnected from the storage battery.
The cladding and overlay of the wind window are removed.
Disconnect the gearmotor connector, which is located behind the vacuum booster, and the micromotor potentiometer connector.
The self-tapping screws are unscrewed, and the motor reducer of the damper drive is pulled out.
Using a thin screwdriver, the body hooks are released and the motor is removed.
Its work is checked by connecting it to the power supply from the SAUO.
You can replace the motor or try to fix it.
Motor repair instructions:
The cover is removed. For this, the pressed side is folded back in two places.
They are checked in what condition: the collector, brushes and bearings.
If parts can be repaired or replaced, the motor is assembled.
The bearings are lubricated with silicone grease.
If the gear teeth are cut off on the gear wheel, it is better to replace it.
After assembly, the operability of the motor is checked and the gearmotor is assembled.
The pin of the lever of the device is inserted into the slot of the lever on the drive of the heater control flap.
It is necessary that the gearmotor lever is turned to the desired position. To do this, two wires need to apply a voltage of 12 V to the connector of the electric motor.
After installing the gearmotor, the movement of the heater control lever in the damper drive from the uppermost position to the lowermost position is checked by turning the knob with which the air temperature inside the passenger compartment is set.
Correct operation of the heating system makes the car a cozy and warm vehicle. Each car owner must monitor its condition and timely repair all elements.
It cannot be said that the build quality of AvtoVAZ automobiles is at an extremely sad and low level. But these machines cannot be called exemplary either. One way or another, if you properly take care of the car, monitor it, carry out periodic preventive maintenance, expensive repairs will be reduced to a minimum.
A car is a means of transportation that has a certain level of comfort. Partly responsible for the comfort of the driver and his passengers in the VAZ 2110 stove ... Various problems occur in its design, and the stove damper on the VAZ 2110 is no exception. The role of this node is to maintain a user-specified temperature.
There are different reasons for damper breakage.
When the gearbox is functioning, but the damper still does not make turns, you can hear the characteristic sounds - clicks ... This indicates that a square-shaped shaft rotates inside the socket.
There is only one way to cure such a malfunction - to remove the old damper from plastic with foam insulation, and change it to a new, modern one. The dampers of the new sample are made of metal, and the seal for it is made of rubber.
VIDEO
If you do not want to spend a lot of money on repairing and replacing the device, you need to first check whether such manipulations will be required. To do this, you can try to return the displaced damper to its rightful place.
Turn on the ignition;
Switch the regulator to different positions;
Move the flap manually;
So it can be returned to its original position.
Of course, you first have to dismantle the deflector in order to gain access to the damper. If this method works, the damper will be able to work again as before, which means that it will react to the regulator.
But this cannot be considered a full-fledged measure of restoring the functionality of the damper, since if the socket is already loosened, the node will not be able to work normally further. First, you will repeatedly apply the half measures described above, but over time you will still have to replace the stove damper with a VAZ 2110.
VIDEO
If any of the specified units stops working normally or is completely out of order, then the stove shutter will not work on the VAZ 2110. Only its replacement is required. Ignoring the problem will lead to even higher repair costs in the future.
To replace the device, you will have to perform a number of consecutive steps. The work is not particularly simple, but doing it yourself is more than realistic:
Drain all coolant from the heating system;
Disconnect the battery. For this, the negative terminal is simply removed;
Remove the cladding, windshield trim and soundproofing;
Dismantle the fan from the stove;
Disconnect the clamps of the vacuum pipe from the heater body;
Dismantle the front heater air intake housing. There is definitely no need to rush here. To facilitate dismantling, we recommend removing the dashboard. Inside the cabin, the fasteners that hold the heater are unscrewed, and then lifted;
Remove the spring brackets, fastener nuts and front housing;
Disconnect all hoses from the radiator;
Disconnect the rear casing from the heater;
Take out the radiator from the stove.
VIDEO
After the performed manipulations, you can finally replace the damper.
Then follow the reverse assembly procedure according to the dismantling steps. Pour coolant back into the system and check if the new damper works in place. It is important to make sure that there are no leaks and that the hose connections are not tight.
Turn on the stove and check how the heater behaves. If everything is normal, you have done a competent and successful work, with which we congratulate you.
VIDEO
When changing the damper, do not forget to check the functionality of the actuator.
If the micromotor does not work, it will have to be repaired or simply replaced with a new one.
Having removed the lining and lining from the windshield, directly behind the vacuum amplifier of your "ten" you will find a micromotor reducer. Disconnect two connectors from the amplifier - micromotor and micromotor gear. Now unscrew the self-tapping screws and
remove the micromotor gearbox. From it you have to remove the motor.
Connect it to the SAUO to test its functionality.
If the device does not work, you can try to repair it. For this:
Bend the pressed side slightly and dismantle the cover;
Check the condition of the collector, brushes and bearings;
Replace the specified components or correct them;
If the gear teeth are worn out on the gearbox, it will have to be replaced;
Be sure to lubricate the bearings. Ideally, a silicone based lubricant should be used;
If the above measures do not help, just install a new unit.
VIDEO
When the work on restoring the functionality of the MMP is finished, reinstall it. For this:
Insert the pin of the micromotor gear lever into the slot of the lever. It is located on the damper actuator;
If the lever is not rotated properly, apply 12V to the pins of the motor connector on the two wires. Here we are talking about yellow wires. This will allow you to return the lever to the correct position;
Having installed the micromotor, check it for operability, plus observe how the drive of the damper of your heater moves, whether the stove control lever is working properly to adjust the temperature.
We will repair or replace the damper and stove drive, you can return the heater to its previous functionality and independently determine what temperature regime will be set inside the cabin of your VAZ 2110.
VIDEO
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 climatic processes in the cabin. For this, a 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 control system of the heater 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 “tens” 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 Video of replacing the radiator of a new type of stove.
VIDEO By the way, when replacing the heater stove, you can use the opportunity to replace and cabin filter VAZ 2110 , so that later it would not be disassembled all over again. This will help you feel the fresh air and warmth of the repaired VAZ 2110 stove in the cabin.
The car's heating system is a necessary element for our harsh winters. The VAZ 2110 stove allows you to heat the interior well enough so as not to freeze. As practice shows, the reliability of heating of domestic cars cannot fully satisfy the requirements of motorists. She refuses at the most inopportune moment, when it's cold outside. The VAZ 2110 stove belongs to such devices, and therefore the ability to repair it yourself helps in a difficult situation.
The heating system of a VAZ consists of the heat source itself (stove), a heat distribution system throughout the cabin and a control system. The heating and heat distribution system is combined with the interior ventilation system. The heat flow is controlled by an air damper (older designs used a tap). The air that is supplied to the passenger compartment is heated, passing through the radiator of the VAZ 2110 stove, and is distributed through the distribution system.
Most of the flow is directed to the windshield and side windows, through the deflectors equipped with flaps, as well as to the center of the passenger compartment. Another stream is directed to the feet of the driver and the passenger seated next to it (through two pairs of deflectors located at floor level and knee level), as well as through a tunnel on the floor and two air vents under the front seats to the rear seat, at floor level.
The VAZ stove fan provides three modes: low and medium speed and automatic speed selection (according to the signal from the control unit). The electric motor of the furnace fan is a collector, direct current. The consumed current at the highest speed of rotation is 14 A. The setting of the speed mode of the electric motor is made by changing its connection to the car battery, directly (maximum speed) or through an additional resistance.
VIDEO
This resistor has a changeable resistance of 0.23 ohms and 0.82 ohms. If the maximum resistance is connected to the circuit, then the fan rotates at a low speed, and if it is less (0.23 Ohm), then at an average speed. When repairing a VAZ 2110 stove, it is not recommended to remove the fan blades from the motor shaft: this can lead to imbalance. The electric motor cannot be repaired (except for cleaning the collector contacts); if it fails, it is advisable to replace it together with the fan blades.
The radiator of the VAZ stove is located below the dashboard and has a plastic casing. It contains two plastic tanks (one of them, on the left, has a steam outlet) and two rows of aluminum tubes with plates. Depending on how the dampers are located, a variable flow of intake air is passed through the radiator (in the extreme positions of the dampers, all air passes or does not pass at all), and the rest of the air is directed into the air vents, bypassing the radiator. The new VAZ 2110 stove is controlled by signals from the electronic unit.
The unit receives information about the temperature in the passenger compartment from a sensor located on the ceiling and equipped with a micro-fan. If necessary, the unit can activate a micromotor that controls the heater flaps. The electric micromotor has a stove damper position sensor (ring resistor).
The information from this sensor is sent to the control unit, which turns off the micromotor if the damper takes a predetermined position. The heating system of the VAZ of the new model has an automatic mode (position "A"), in which the control unit provides, in addition to monitoring the engine gearbox, also control of the fan rotation.
Usually, stove malfunctions are detected at the onset of the heating season, although prevention should be carried out in the warm season. With the onset of winter, drivers begin to notice that the VAZ 2110 heating system does not work well or does not want to work at all. There are several types of malfunctions that require stove repair:
The heater temperature cannot be adjusted.
Damper or gearbox malfunctions.
Radiator fluid leak.
Broken ceiling temperature sensor.
Failure of the control unit.
Often the VAZ 2110 heater heats up badly because of its radiator. Therefore, it is necessary to check if the radiator is hot. If necessary, it is replaced. Difficulties with heating may appear due to the lack of liquid in the cooling system of the car engine. The first step is to measure the liquid level. To check the condition of the VAZ stove, you will have to remove the central deflectors. For this, the antennae are bent and the shutter is shifted. Installing, replacing or upgrading a VAZ stove will require the use of tools such as:
screwdriver;
pliers;
tweezers;
a set of socket and wrenches;
knife;
scissors;
hammer;
mallet;
chisel;
calipers.
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When the temperature in the passenger compartment cannot be controlled, the reasons may be deviations in the operation of the control unit or a malfunction of the damper. If the stove controller is to blame, then the command to extend the damper element does not pass. You should immediately check the temperature sensor located on the ceiling.
The check can be carried out by repeatedly changing the position of the temperature setting lever. Warming up the air flow can be analyzed by the tactile method - by determining the performance of the sensor in the extreme position of the handle.
To check the stove itself, you will have to remove the central deflectors. The damper is accessible through the engine compartment. Modernization of the VAZ stove in this case is the replacement of the old damper with an aluminum one instead of a plastic one. The greatest amount of effort will be required when you need to replace the stove radiator, since the entire VAZ heating system must be removed.
If the fan produces only cold air, we can assume that the stove is faulty; moreover, with a probability of 90%, the geared motor is to blame, and only its replacement will help. At the same time, the VAZ heating system is repaired in the following order:
The wipers are dismantled.
Frill steps aside.
The three mounting screws are unscrewed.
The wires move aside.
The old gearbox is removed and a new gearmotor is installed.
The assembly is carried out in the reverse order.
With a poor supply of warm air due to the fault of the air duct, a small modernization of the VAZ stove and air ducts suggests itself. Refinement is carried out in two ways: by installing a system of corrugated hoses and by insulating the side panels, which is mainly associated with gluing gaps and gaps. Corrugations are used with a diameter of 40 mm, and the slots are sealed with polyurethane foam.
The VAZ heating system, if installed before 2006, has old type stoves. In this regard, it is advisable to replace it with a new type of stove. So, heaters 2112-01 and 2112-02 proved to be quite effective. Pre-heaters can be installed to accelerate heating. It should be noted the peculiarities of replacing the heating VAZ 2110 injector, which is increasingly being installed on cars.
The main content of such a system is the installation of a 6-hole thermostat instead of the standard one in the engine cooling system. Prevention of the good operation of the heating system can include drastic measures:
replacement of the heater with a new type of stove;
revision and modernization of the VAZ stove;
changing the control scheme;
new heating system VAZ 2110 injector.
It is very unpleasant to be in the car when the cabin is cold. Self-adjustment and debugging of the VAZ stove will provide the necessary comfort.
Video (click to play).
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