The stove blows cold on a VAZ 2112 - reasons and solutions

The onset of winter for car owners is indicated not only by worsening weather conditions and a decrease in ride quality, but also by problems with the stove. Which of us remembers the heater of our VAZ in the summer? In the spring the stove turns off and it only gets to work in the fall. And this is where problems begin, for example, the interior does not warm up well or, in general, cold air blows from the VAZ-2112 stove. Before contacting a car service, you can try to figure out this problem yourself. It’s not that difficult, believe me, many problems with the VAZ-2112 heater can be eliminated with minimal effort and expense.

Most problems with the VAZ-2112 heater can be fixed yourself

VAZ-2112 owners need to know about some differences that are typical for the heating system. An important point is the separate operating principle. The heater design consists of a stove that prepares warm air to enter the cabin. The pipes are distributors of heated air. Thanks to the air ducts, heat comes from the control panel, is directed to the windows and blows on the feet. The heating system is controlled by a control unit. The heater design also includes an evaporator.

Briefly about the design features of the stove on the VAZ-2112

Until the owner of a VAZ-2112 encounters a cold interior in winter, he may not realize that the stove of the entire tenth family has an important design feature - it is made in the form of two separate systems, in each of which a breakdown may occur or a design defect may appear. or a factory defect.

Heater design diagram.

Firstly, the tens heater consists of an air heating unit itself. Everyone is familiar with this unit: heater radiator, air ducts with a regulation unit, cabin filter.
Secondly, the car is equipped with an electronic temperature control system. Each of these elements can pose a potential threat to the microclimate in the cabin. Another element of the system is the heater control unit controller. We will check each of the elements, modify them if necessary, and bring the temperature in the cabin back to normal.

Mayevsky crane

Design of the Mayevsky crane

It is designed to eliminate air lock in the heating battery. Despite its small size, the Mayevsky faucet helps to effectively remove accumulated steam not only in radiators, but also in pipes.

Structurally, it is a needle valve enclosed in a metal housing. How to remove an air lock from a heating system using it? First you need to decide on the device model.

Manual taps

After installation in the upper radiator pipe, air is released after turning the union nut on the tap. Removing an air lock from the heating system using a Mayevsky manual tap is carried out according to the following scheme:

Filling the system with coolant. The taps on the radiators are closed;
When the maximum level is reached, the water supply stops;
Having set the required gap of the needle limiter in the devices, the taps are opened;
At the same time, the coolant supply is restored.

Water is added to the system until liquid begins to flow from all Mayevsky taps. Be sure to check that there is no air flow. This method is effective for removing air locks in heating radiators when starting the system for the first time, before the season, or when airiness appears during operation.

Manual models will effectively eliminate air lock in the radiator for both autonomous and central heating. The main thing is to choose the right mounting thread. In most cases it is 1/2", but there are models with a non-standard size of 3/4".

Automatic taps

Mayevsky automatic crane

Unlike the model described above, in their design, a seat with a certain surface area is installed on the end of the needle valve. In combination with a return spring, the degree of pressure of which determines the critical pressure value at which the valve opens. A detailed device is designed to automatically break through a heating plug when a critical temperature value and, as a result, pressure is exceeded.

However, before installation you should familiarize yourself with the specifics of this model:

To prevent water from getting onto the floor, the structure must have a pipe to drain excess water into the sewer;
If it sits for a long time, the valve seat may become covered with limescale, which will make it difficult to open. Therefore, it is recommended to open the tap manually once every 2-3 months. The steps of the procedure must be done before starting the heating for the first time;
The set maximum opening pressure should not exceed the critical pressure of the entire system. In order to remove an air lock from the heating in automatic mode, the pressure value on the tap should be 5-10% less than the maximum.

What is better to install: an automatic or manual Mayevsky crane? If the operation of the system does not involve sudden pressure surges, manual models can be installed on the radiators. For autonomous heating, preference is given to automatic ones.

It is best to choose models made of brass. During the expulsion of an air lock from the heating, they can withstand not only a critical pressure value, but also a temperature. The steel body is subject to destruction and rusting.

Why is it impossible to change the heating temperature?

You can often observe a situation in the cabin 2110 2112 when the stove does not react in any way to the position of the temperature regulator, while the air temperature can be constantly low or constantly high. This is a sure sign that one of the electronic components has died. Let's check it all like this:

Interior temperature sensor. The stove controller receives information from the temperature sensor. It is located on the ceiling, near the interior lamp. The sensor is guaranteed not to work if the stove responds to the temperature control knob set to the extreme right position. Otherwise, we are looking for a fault in the controller itself.

Temperature sensor location.

Stove damper. The temperature may not change when the damper does not change its position. It is made of plastic, but its fastenings are metal, so they can oxidize, causing the damper to jam. Experienced owners recommend replacing the plastic damper with an aluminum one - it will dose air better and retain heat well. You can only get to the damper for inspection or replacement from under the hood.

Often the heater dampers get stuck.

Damper actuator. The damper drive is a small gearbox and an electric motor. This whole structure often jams and the engine burns out. To check the functionality of the damper drive, you will have to remove the frill, wipers and insulation. The unit cannot be repaired and is replaced if it fails.

The cause of heater failure may be the damper drive.

Weak supply of warm air, stove modernization

One of the main problems of the VAZ-2110 - 2112 heater is leakage and poor-quality assembly, poor quality of air duct elements.

The stove can wildly heat up the air entering it, but the barely perceptible warm breath of the heater can reach the cabin. It's all about leaky air duct connections, and, unfortunately, there are quite a lot of them. Firstly, it is recommended to seal the primary air ducts; a leak of heated air is often detected between them and the stove itself; it simply warms the engine shield.

Modernization of the heater for the driver’s feet, we will write a separate article about this. The photo shows our editorial car.

To eliminate this drawback, unfortunately, you will have to spend more than one hour, since it is impossible to get to the air ducts without dismantling the front panel.

It is necessary to check and seal each junction of plastic air ducts and their joints with the interior and glass air deflectors. Individuals who are particularly disappointed in the factory stove completely throw away the stock air ducts and replace them with corrugated hoses, which are abundant in hardware stores. The joints are sealed with polyurethane foam or modelin.

Of course, there is a lot of work, but the time spent is worth it - after modernization, absolutely all the warm air will flow only for its intended purpose.

Here are some tips and tricks

I want to tell you an incident that happened to me.
I began to notice that the stove was not working evenly, that is, my feet were freezing, and the windows in the car were fogging up as they warmed up. I couldn’t figure it out for a long time and started looking for an answer on websites and saw that this was a fairly common problem. To eliminate it, it is necessary to modify the system. I did this: I removed all the panels and disassembled them, there were cracks and various holes. You just need to seal them up. In this case, complete sealing is most important. But I also found another way on the websites: the damper itself is removed, as well as the standard seal. After this, the cracks must be processed on the driver and passenger sides and where possible the valve must be glued.

I would like to note the fact that it is optimal to turn on the heater in the “windshield/legs” mode. This way you will avoid severe overheating of the windshields, but at the same time warm up your feet and the interior itself.

Blowing cold air - inspection of the heater radiator and cooling system

The radiator of the VAZ-2110 stove also does not have high heat transfer, and besides, it is quite difficult to get to it. However, it may be associated with a weak interior heating temperature:

The heater radiator is clogged. If antifreeze does not get into it when the cooling system is in full working order, then it will not heat. Diagnosing a clogged stove is difficult, but it is possible. With the engine fully warmed up and the heater on, we feel the temperature of the radiator inlet and outlet pipes by touch. If the inlet is hot and the outlet is cold, the heater radiator is clogged. Few people clean it; the public prefers to buy a new one. The market will allow you to choose several models of aluminum radiators and one or two copper ones at our discretion.

The problem of radiator obstruction is solved either by flushing using special liquids, or by replacing the element.

Cabin filter. If the cabin filter is clogged, there is no need to talk about air supply to the cabin. We take out the filter, check its condition and change it if necessary. In winter you can do without it. Diagnostics is simple - if the temperature in the cabin returns to normal when the filter is removed, that is the problem.

It wouldn't hurt to check the cabin filter as well.

Thermostat. Often there is a problem with the thermostat. Its valve refuses to allow antifreeze to flow into the heater circuit, so the radiator is left without liquid. The only cure is to replace the thermostat.

Checking the thermostat.

Heater radiator leaking. A clear symptom of a malfunction is antifreeze in the cabin and a drop in the level in the expansion tank. Only replacing the heater radiator will help.

If the radiator leaks, you will have to dismantle it and replace it with a new one.

Airlock. One of the most common problems with the cooling system and heater is an air lock. As a result, the circulation of antifreeze is disrupted and the stove does not warm up completely or does not heat up at all. The air plug is removed by releasing some of the liquid along with air from the very top of the engine - from the throttle block fitting while the engine is running. After removing the plug, the stove should restore functionality.

What to do first

In order not to get buried in the abundance of reasons, it is necessary to act from simple to complex. Leave the frightening thoughts of a broken cylinder head gasket and take a trifling attitude, as if the electric damper actuator has failed. Actually, that's where we'll start.

Check the operation of the climate control shutters

Turn the knob or rocker of the climate system and evaluate the temperature of the incoming air. For example, with “blue all the way” the air should be noticeably cold, and with the maximum red settings it should be warmer.

Immobilized valves will not be able to mix flows according to the specified °C value. Therefore, at any position of the regulator, air will blow at the same temperature. The dampers stop as a result of damaged fasteners or a failed servomotor.

Is the antifreeze level in the expansion tank stable?

Lift the hood, find the “extender” and the boundary marks on it. When cold, the antifreeze level should be between the MIN and MAX marks. If the tank is constantly emptying, look for leaks. You can look at where the coolant goes using the Lada Vesta as an example.

Heater radiators of some cars, for example Lada Kalina, are very sensitive to the amount of antifreeze in the expansion tank. At the slightest leak, the engine heats up, and the stove is cold or barely warm. And in general, when liquid flows out, air comes in and thus the system becomes airy.

Inspect the heater radiator for unobstructed circulation

Find two pipes going to the heater heat exchanger near the engine shield and touch them. The radiator assembly is embedded in a small circle in parallel, which means that the hoses should warm up immediately after starting the engine. It is better to carry out work when the engine is warmed up.

How to remove an air lock without draining the coolant

It happens that if there is air in a small circuit, the temperature sensor on the dashboard behaves strangely: the needle sometimes jumps. For example, it was at 60°C and instantly became 90-100°C, then returned back. This is explained by the fact that the air heats up noticeably faster than the liquid and to higher temperatures. As a rule, the needle twitches when the system is seriously aired.

The fact is that a small traffic jam does not always go around the entire small circle. Air accumulates at the highest point of the circuit - the radiator of the car furnace, causing the circulation of coolant in it to slow down. At the same time, there are no sudden temperature changes in the motor jacket. Even without observing extraneous symptoms, assume that the engine is overheating and the cabin heater is blowing cold air due to air accumulation. Try to etch it out, because you don’t need to disassemble anything:

Raise the front end on a lift or drive up a hill.
Allow air to escape through the highest point in the system. Why unscrew the cap of the expansion tank if it is a circulation tank (there is no plug on the engine radiator), or the cover of the engine heat exchanger. On front-wheel drive Ladas, the highest point is the throttle heating hose, disconnect it.
Warm up the engine to operating temperature at idle speed.
Increase the speed to 2,500-2,700 units.

How to easily remove a dirt plug from a furnace heat exchanger

When one side of the heater radiator is cold and the other is hot + no antifreeze is coming out, feel free to flush the heater radiator installation. There is no need to remove anything except the pipes. The only equipment that will be useful is a submersible pump from a country well, a deep basin, long hoses and one of the means for flushing the car engine cooling system.

Find out where the heat exchanger has the inlet and outlet and start cleaning:

Disconnect the standard tubes. When dismantling the pipes, 1-1.5 liters will drain. coolant. A 2-3 liter coolant canister is quite enough to replenish reserves. There is no need to drain all the antifreeze from the system.
Connect the hoses leading to the pump and basin: supply to the radiator outlet, drain to the inlet.
Fill the container with cleaning agent.
Turn on the pump for 10-15 seconds.
Reconnect the hoses: supply - to the inlet of the heat exchanger, drain - to the outlet.
Turn on the pump for 15-20 minutes.

The flushing composition will circulate in a circular manner: from the basin and back into it.
A short supply of fluid in the opposite direction quickly flushes out the dirt plug at the radiator inlet.
Check whether antifreeze flows from the radiator steam pipes into the tank (relevant for circulation “expanders”).

Why does the VAZ-2112 stove heat poorly and how to fix it

If the stove on your VAZ-2112 does not heat well, do not be upset - this problem is common to many domestic cars. In winter, when your feet are cold inside and your hands are freezing, this, of course, will make few people happy, but almost any malfunction associated with stove repair can be repaired. It is difficult to say unequivocally why this happens, since everything has its own reasons that need to be found and eliminated.

The design of the VAZ-2112 stove (16 valves) is quite simple and consists of two elements. One of them is that the heater is installed under the hood of the car and must heat the air, which is supplied to the cabin at a certain speed. The second one is the air distributor. To eliminate the cause of poor heating of the stove on the VAZ-2112, you need to figure out which one is not working correctly.

If you are unable to change the speed of the fan located on the heater, then most likely the problem lies there. The electronics may also be faulty, but this is extremely rare. To quickly understand the reasons for poor heating, you need to know the principle of operation of the stove, and it is extremely simple. When setting the temperature, the sensor compares it with the one currently in the cabin. If the difference is several degrees, the gear motor opens or closes the dampers, adjusting the temperature indicator. If the difference is more than 5 degrees, the next fan speed is switched on.

Warm air enters the cabin through special channels, heating the windows, driver and passengers.

Causes of poor heating

The reasons for insufficient heating vary. The most common of them is an insufficient amount of antifreeze in the engine cooling system. To determine the amount of coolant, you need to check the expansion tank and add antifreeze to the level if necessary. The next significant reason may be hidden in the heater core. Often a crack or small hole appears in the radiator, which affects the quality of its operation.

An air lock is another problem that prevents the radiator from fully performing its functions. You can try to eliminate it. To do this, you need to drive your front wheels onto a hill and stand for several minutes with the engine running at medium speed. In some cases, simply replacing the cabin filter is enough. The reasons, as you can see, can be different; some will take a few minutes to eliminate, while others sometimes take half a day. But let's look at what needs to be done if the stove does not heat well.

Ways to fix sewer problems

In order to try to remove a blockage in the sewer drain of an apartment or house, you must first determine the location of the blockage.

So, if a problem with water outflow is observed in the kitchen sink, and all other drain points are working normally, it means that the garbage plug has formed specifically in the siphon under the sink. In the same way, you can identify blockages under the sink in the bathtub or under the bathtub/shower stall itself. Depending on the location of the plug, chemicals such as “Mole”, etc., can be poured into the drain hole in accordance with the instructions and eliminate the problem of deposits on the pipes.

As an aggressive anti-clog agent, you can use simple soda mixed with hot water. That is, first pour soda into the hole in the bathtub or sink, then fill it with hot water. After this, vinegar is poured into the hole. The reaction of the components should push the plug or simply liquefy it.
You can also use a standard plunger to remove a blockage in your home drain. Cleaning is easy with it. You need to fill the plumbing fixture with water and tightly cover the drain hole with a plunger. Now you should make rhythmic movements up and down with the plunger, creating a vacuum in the manifold. Under its influence, the plug should either come out (most often it is hair) or go into the waste system. You can clean the sink and toilet in a similar way.

temperature sensor

You can often encounter the following problem: it is not possible to properly regulate the temperature in the cabin. In most cases, the problem is a failure of the control unit and an incorrectly set damper. This is not a difficult problem at all, and it can be solved quickly. First you need to check the serviceability of the temperature sensor. To do this, move the heater knob to one side, and after a while - to the other. The temperature of the air entering the cabin should change. If this happens, the problem is not in the controller. If the temperature sensor does not work, you can temporarily turn on the stove without it, then the temperature in the cabin will be the same as that set on the electronic unit.

Poor heating at idle

If you suddenly experience a flow of cold air while the engine is warm and the heater is on, there are probably problems with the thermostat or pump. The cause of this phenomenon may be a damaged cylinder head gasket. A broken gasket gives the effect of an airy state. But this is not the worst situation, it is much worse if the reason why the stove does not heat well is a non-working pump.

A failed pump will not circulate coolant, causing the engine to overheat. So if the heater on your car begins to heat worse, you need to check the performance of the pump. A faulty heater valve also affects the flow of warm air into the car interior. If it stops working normally, the inlet hose will be hot and the outlet hose will be cold.

Lada 21099 2003, 75 l. With. - observation

Cars for sale

Lada 21099, 1997

Lada 21099, 1999

Lada 21099, 2002

Lada 21099, 2003

Comments 20

On a VAZ 21124, cold air blows from the heater; at idle, if you rev it up a couple of times, warm air immediately comes out. what is the reason?

Air in the cooling system

On a VAZ 21124, cold air blows from the heater; at idle, if you rev it up a couple of times, warm air immediately comes out. what is the reason?

Priora has the same problem((

Hello, has the heater radiator been replaced?

On a VAZ 21124, cold air blows from the heater; at idle, if you rev it up a couple of times, warm air immediately comes out. what is the reason?

What's wrong with the stove, what kind of air is blowing now?

The air is boiling water, the stove is working.

Is the cooler still in place? The small circle actually includes the stove and the thermostat has no effect on it! Is there any noise in the dashboard? It looks a lot like a burned out cylinder head gasket, or maybe a stuck and collapsed heater valve, or a clogged heater radiator... do you often change the coolant? did you use any sealants? How long have you been in the pump?

The coolant was in place; at an engine temperature of 104 degrees, there was a full tank under the cap, because... she began to boil. I changed the coolant 1.5 years ago, filled it with yellow AGA antifreeze (+123... - 65). There doesn't seem to be anything bubbling in the dashboard. The cylinder head was capitalized this summer. After the cylinder head capitalization, engine oil began to leak a little from somewhere on the right side of the cylinder block. I have never changed the stove valve, it is factory, I have not looked at it. Once, a long time ago, I used sealant, but after it I flushed the cooling system several times and already changed the radiators (the main one and the heaters). There is no dirt in the system now. I changed the pump last winter, the new one has a plastic impeller (TZA premium), the old one had a metal one.

Does it sound like it's in the dashboard, or is there nothing bubbling? Coolant on the ceiling - as a result of a burnt-out cylinder head gasket... compression gases escape into the engine cooling system and thereby air out the system (an air lock is formed, first of all in the area of the stove, which is why you should hear the sounds of waterfalls in the dashboard in this case. Of course, this is difficult to determine in the cold, but still... try in the morning, squeeze the pipes, then start the car when cold, give 3 tons rpm while squeezing one of the pipes, if with increasing speed the pressure increases sharply, just like a cylinder head gasket! but this is not an option at all useless gasket. yes, the car doesn’t smoke? there’s no extra stench and/or color in the exhaust? Well, in the end, to understand whether you need to go into the stove or not, you just need to check the flow by carefully removing the stove outlet pipe and opening the stove valve and plugging it with your finger or a plug in the bypass pipe (or pump pipe), something like that.

PS the gasket could have burned out for 2 main reasons: fuel and poor cylinder head traction.

Beelly thanks for the good advice! I drove the car in the morning to the Ladovskaya station on the 10th Anniversary. Now even at speed it blows cold. The antifreeze level in the expander is maximum. I drove and monitored the engine temperature so as not to overheat. There they removed the coolant hose from the throttle heating and turned it on. There was no coolant circulation, it did not run out of the hose. We unscrewed the spark plugs, they were clean, we looked at the cylinders through the spark plug wells, everything seemed to be dry. They say you need to look at the pump. I left. The master calls me and says: they removed the pump, it’s not the problem, it’s normal. Tomorrow they will look into it more specifically, because there was a Priora without a cylinder head under repair. Most likely a gasket. Tomorrow they'll tell you what's what. I'll unsubscribe.

Broken gear motor or heater

In almost all cases, a non-working gear motor is easier to replace. In order to release this element, it is necessary to remove the windshield wiper, “jabot” and unscrew the screws. After this, you need to remove all the wires going to the gearmotor, and then remove it too. Next, change the non-working element and adjust the air supply.

The heater malfunctions very rarely, but it should also be checked. To determine its condition, you need to dismantle the main deflector and also straighten the fasteners. Large amounts of scale or mechanical damage will indicate a non-functional condition.

How to solve the problem of poor heating of the stove on a VAZ-2112

The main reasons for a non-working stove

If the VAZ-2112 stove does not heat well, then one of the following problems may be occurring:

Impossibility of temperature control.
When there is a cold air flow under the hood, uncharacteristic clicking sounds are heard.
The radiator is leaking.
Lack of functioning of the temperature sensor, which can be found on the ceiling of the cabin.
Damage to the ACS control unit.

These reasons are the most common. You can eliminate each of them yourself, and we will tell you how.

Inability to regulate temperature

If the VAZ-2112 stove does not heat, then it is worth checking whether it is possible to regulate the temperature regime. This problem may occur due to malfunctions in the control unit or due to a malfunctioning damper. First of all, it is worth checking the serviceability of the temperature sensor, which is located on the ceiling of the cabin near the ceiling lamp. We turn the temperature control lever starting from the cold position and ending with the hot position. Although temperature changes will still be felt. If the supply of hot air begins only when the sensor is installed in the hot extreme position, then we can speak of its failure and prepare to replace it with a new element.

First of all, check the temperature control lever

Damper problems

If the stove is not blowing well, then it is worth checking the operation of the damper. The fasteners on it may oxidize and in this case the damper will not turn. You can only get to the damper through the hood, after first removing the deflectors and bending the antennae. After such actions, you can try to move the damper from the inside. If everything is fine with the damper and there are no traces of oxidation on the fastenings, then it will move easily.

The damper drive has a micromotor, which is located near the windshield under the hood. This element can also cause the stove to not heat. To get to the micromorch, it is necessary to dismantle the frill and insulation. When the warm air supply is turned on, the lever should move, this indicates the serviceability of the motor.

The design of the motor contains gears that tend to wear out and, as a result, slip. In this case, you should seriously think about replacing the motor. Although among car owners there are craftsmen who drive without a motor and close the throttle with their hands. With such repairs, the stove will constantly blow hot air, which is not at all good.

If there is poor airflow, you should check the operation of the damper.

Radiator leak

When the heater is not blowing, it is worth checking the radiator for leaks. Adding fluid to the radiator only saves the situation for a while, but then the problem with the heater arises again. A leaking radiator is one of the complex problems that relate to the heating system of the VAZ-2112. The main snag is the need to dismantle a large number of parts, including the stove itself.

If the condition of the radiator is unsatisfactory, the best solution is to replace it. Of course, small cracks can be soldered and still enjoy a comfortable ride for some time. If large leaks are detected, you should still think about replacing the radiator, otherwise you will have to assemble/disassemble the car quite often.

Additional work

The reasons for poor heater performance may be related to a leak in the radiator. To check it, you will need to remove the stove. If the radiator leaks, then it is replaced with a new analogue. If there are air pockets in the radiator, then cold air blows. In this case, the car should be positioned so that the front wheels are higher than the rear tires. Then open the tap and press the gas pedal. The motor should run for 5 minutes. Then we return everything to its original position.

If the stove does not heat, it is recommended to check the faucet for serviceability. This element is located under the hood. You can eliminate a leaking faucet by replacing it with a new analogue. Experts do not recommend removing the tap from the 2110 heating system. Otherwise, the driver will not be able to control the temperature of the antifreeze. If the stove does not blow well, insulation work will need to be done. We seal the cracks in the panel with anti-squeak. If the valves are jammed, the stove may not work. If the VAZ-2110 is equipped with valves (in the heater hoses), it is necessary to check their operation.

If the stove on a VAZ 2110 blows cold air, but is itself heated to a temperature of 90 degrees, then the reason is hidden in the standard air ducts. Most likely, they are either damaged or have fallen off from the stove itself. And to get to them you will have to disassemble and remove the entire panel. If you still cannot restore them, you can simply replace them with corrugated hoses purchased from building materials and install them. And seal all joints tightly and thoroughly with polyurethane foam or modelin.

So that the stove always warms

Follow simple rules for proper operation of the stove

If you pay attention to the heating system and do not start this important element of the car, you can protect yourself from unpleasant surprises, lengthy repairs and unnecessary expenses. Follow simple rules and the stove will always work properly.

Regular cleaning of the radiator is the main condition for the normal operation of the heating system.
It is advisable to fill the radiator with high-quality antifreeze from reliable manufacturers. Using a fluid of questionable quality will lead to rapid build-up and the need for frequent cleaning of the system.
Antifreeze should be replaced at least once a year.
If the thermostat is faulty, then it must be replaced with a new one, the sooner the better. The thermostat often gets stuck in the open position, which leads to insufficient heating of the interior and prolonged warming of the car itself. If the thermostat breaks while it is closed, the car may overheat, which will entail serious consequences and costly repairs.
The stove does not heat well when air gets into the heating system. This is not the worst problem, which can be easily eliminated by manually pouring antifreeze or idling the car for a short time.
It is necessary to periodically check the damper control levers to ensure they are working properly. If the cable has come off and the valve is faulty, the air flow will not be sufficiently heated.
The stove fan design contains bearings that sometimes need to be lubricated.
Using cabin filters and regularly cleaning or replacing them. Air passes through a clogged filter with difficulty, therefore the stove will not work at full capacity.

Now for each of you the question of why the stove on the VAZ-212 does not work will not seem so difficult. You can find the cause and eliminate it without specialists; you only need desire and at least minimal car maintenance skills.

Briefly about the design features of the stove on the VAZ-2112

Mayevsky crane

Manual taps

Automatic taps

Why is it impossible to change the heating temperature?

Weak supply of warm air, stove modernization

Here are some tips and tricks

Blowing cold air - inspection of the heater radiator and cooling system

What to do first

Check the operation of the climate control shutters

Is the antifreeze level in the expansion tank stable?

Inspect the heater radiator for unobstructed circulation

How to remove an air lock without draining the coolant

How to easily remove a dirt plug from a furnace heat exchanger

Why does the VAZ-2112 stove heat poorly and how to fix it

Causes of poor heating

Ways to fix sewer problems

temperature sensor

Poor heating at idle

Lada 21099 2003, 75 l. With. - observation

Cars for sale

Lada 21099, 1997

Lada 21099, 1999

Lada 21099, 2002

Lada 21099, 2003

Comments 20

Broken gear motor or heater

How to solve the problem of poor heating of the stove on a VAZ-2112

The main reasons for a non-working stove

Inability to regulate temperature

Damper problems

Radiator leak

Other ways to solve the problem

Additional work

So that the stove always warms