Poor heating of the stove VAZ 2110: the causes and their elimination. How to remake the VAZ 2110?

Problems with a poorly working heater are found not only on the domestic "classic", but also on more modern machines. VAZ-2110 is no exception. In practice, it turns out that in the summer, if you turn on the stove, it will be very hot, and in winter, on the contrary, the sense of it is minimal. However, it is difficult to say why this happens, so it is necessary to consider several pressing reasons and try to eliminate them. Let's figure out why the VAZ-2110 oven does not heat well and how to deal with it.

A little about the design

The model VAZ-2110, which is as close as possible to cars of the European model, has many flaws, especially for the heater. In our case, it is separate and consists of several elements. The first, in fact, the heater, it is under the hood. Its task is to prepare the air that will be fed into the salon. Here we mean speed and temperature. The second element is in the cabin, and it's an air distributor. If you have a bad heating of the VAZ-2110 (16 valves), the first thing you need to understand is which of the two nodes is not working properly. Here everything is quite simple. Now you will understand why.

If you can not switch the fan speed, and it is in the heater, then it is logical to conclude that it is your fault. Of course, it can be in electronics, but this is a very rare case. By the way, it is very important to understand the operating principle of the stove. It consists in the fact that you expose the temperature, which with the help of a special sensor is compared with that which is now in the cabin. If the difference is significant, more than 2-3 degrees Celsius, then the gearmotor controls the flaps, opening or closing them. If the temperature difference is more than 5 degrees, then the second fan speed turns on, if less, then the first one. Warm or cold air flows through the channels. So he goes to the side front windows, the front, to the feet and, directly, to the passengers. The reason is very common, when the stove does not warm the VAZ-21103 stove well, but the glass blows out normally. Here the reason can be in the hammered air ducts. How to clean them, we'll figure it out a little later.

How to remake the stove on VAZ-2110?

If you are fundamentally not satisfied with the work of the heater on your machine, then you can easily change it for yourself without any problems. If you are faced with the problem of insufficient blowing, misting windows in rainy weather, then you need to take action. First, you need to make sure that the heater is working and working normally, if not, then it needs to be repaired and only then to start active operations. The main reason, because of which little air enters the side windows, is that most of the flow is lost in the gap. Accordingly, you need to disassemble the entire panel in parts and use foam to eliminate air leakage. It is quite easy to do this. Sometimes it makes sense to build corrugation, but in practice this does not always work. At best, only the feet of the front passengers can warm there.

Pay attention to the fact that you need to modify and blow the legs of the rear passengers. But before you change the stove to VAZ-2110, you need to take care of the driver's place. Here you will have to deal with the so-called herringbone. Just in this case it is expedient to use corrugation. Firstly, it will give the proper effect, and secondly, it takes far less space for the very "Christmas tree". It is desirable that the tube is no more than 40 millimeters in diameter, and with a long length smooth inside. Otherwise, during the passage of air through it, it can whistle, which is not very pleasant.

Refinement of the damper and blower

Many drivers could face such a problem that, with a large frost, it is not possible to adjust the uniform supply of warm air in all directions. So it turns out that the side windows are covered with ice and the legs freeze. For example, if the VAZ-21103 stove does not warm well, then it's obviously in the dampers. So, on the TS, which were released after 2003, there is no such problem, but for those who descended from the assembly line before, this will have to work. There is nothing difficult, you need to cut with a regular saw blade over the metal edge of the flap (do not touch the frontal flap). You can still saw a little from the flap, which supplies air to the side windows. As a result, if you put the flap on your feet, approximately 50% will go to the side windows, 25% - to the feet, and another 25% - to the windshield. If set to the position on the windshield, it will blow only it.

Another reason why the VAZ-21103 does not heat well is that the blowing is not enough. Let's finalize it. To do this you will need anthers, as well as a grille. With the help of a rubber band we fix the grate to the anther, for which we use any suitable glue. On the reverse side, we mount the dust cap with a yoke or screed and rejoice in the result. This solution is not suitable for the driver's seat, as it will warm the right leg, but for passengers it's the most. But now let's go further, because we still have a lot to consider.

Possible causes of the malfunction

Let's take a closer look at why the VAZ-2110 heater does not heat well. The reasons here can be very diverse. One of the most common is that there is no cooling liquid in the engine cooling system , or its amount has fallen below the "minimum" mark. To find out if this is so, it is necessary to look into the expansion tank and check the level, if necessary top up the antifreeze or antifreeze. Another very relevant reason can be in the radiator itself. It often breaks down and remains cold when it should be hot. It's not uncommon, when a "gap" in the radiator creates a gap. It is quite natural that with a crack or a hole in the case it will not heat.

Air cork is another reason for the radiator malfunction. In the best case, it will be possible to eliminate it if you drive the front wheels to a small hill with a mid-speed engine running and stand for a few minutes. Sometimes it's enough to just replace the filter in the cabin. As you can see, it's not so easy to understand why the VAZ-2110 oven does not heat well. The reasons can be and others, for example, in the controller SAUO or the micromotive reducer. If in some cases you need to spend only five minutes to fix the problem, then in others it can take much longer. Let's see what to do if the heater completely refuses to work normally.

The temperature sensor is defective

Quite often, the following problem is encountered: you can not correctly adjust the temperature in the cabin, because the sensor that is near the light bulb is out of order or not calibrated. The most common problem is the failure of the control unit, as well as the wrong position of the flap. Fortunately, all this is solved simply enough, it will take only a little time and an instrument. The first step is to diagnose the serviceability of the temperature sensor. You can do this as follows: move the heating control knob to one side, and then to the opposite. The temperature of the air entering the cabin must be varied.

If the temperature changes, but it still does not heat the VAZ-21102 stove, it's not the controller. In the case where there are no changes, it makes sense to replace the sensor or simply try to turn it off and check the heater's operability. If the controller is switched off, air will enter the saloon at a temperature that has been set on the electronic unit. If to speak in simple words, then you can disable the "A" mode on the fan. Well, now let's go ahead and consider a few more faults on the stove on the "Top Ten".

Badly heats the VAZ-2110 at idle

If you notice that in one "fine" morning when the engine is warmed up and the heater is on, cold air is blowing, then you must immediately take action. Most likely, it's a faulty thermostat or pump. In principle, the stove device is quite simple, and the point is that the hot antifreeze gets into the radiator of the stove. Through the radiator the fan blows cold air, which during this time heats up and passes into the cabin. If the interior is not hot or even warm flow, then you need to look for a fault in some place. One of the main reasons can be a broken cylinder head gasket. In this case, the system will be in an air-conditioned state. At once pay attention to the big circle of cooling and on serviceability of the thermostat.

But this is not the worst thing that can happen. Much sader is the situation when the VAZ-2110 furnace (8 valves) is not warming well because of a broken pump. In this case , the engine may overheat, as the antifreeze does not circulate through the cooling system. If the stove works several times worse than before, check the pump. A defective cock is another actual cause. In this case, the inlet hose will be hot, and the output hose will be cold. If you did not get to manually open the tap, just replace it, sometimes you just need to clean it with compressed air.

If the motor-reducer or heater has broken down

In most cases this element can not be repaired, it is much easier to replace it. To do this is very simple, and now we will consider the sequence. If the VAZ-2110 stove does not warm well, the thermostat and pump have nothing to do with, and there is also no air-cork, the air still blows cold or lukewarm, then it will be necessary to change the gearmotor. To do this, remove the windshield wipers and dismantle the "jabot" (you need to unscrew the three screws). Further we disconnect all wires which approach to a geared motor and remove it. Then simply connect a new part and with the help of a friend you adjust the air entering the salon.

Sometimes it makes sense to check directly the heater. It breaks rather rarely, but from this no one is immune. To ensure that it is malfunctioning or normal operation, the main deflector must be removed. Then you need to unbend the fasteners. Move the damper more conveniently from the engine compartment. A large amount of scale, in the same way as mechanical damage (a crack, a hole, etc.), indicates that a replacement will be required. Remember that if the VAZ-2110 heater (the injector, 8 valves) does not heat well, and the case in the radiator, you will need to completely disassemble the stove in order to replace it. It is not so easy to do it, but with due diligence and free time, it can be done independently.

The stove does not heat the air properly

Sometimes the air heats up very slowly, which clearly does not cause delight, especially in severe frosts. In addition, it also happens that the quality of the warm flow is not very satisfying. In this case, it is necessary to replace the plastic flap with an aluminum flap. The latter is somewhat more expensive, but its efficiency is several times higher. As practice shows, many drivers are faced with the fact that the flap of the old sample is curved during operation, which leads to loss of heated air. If you are willing to pay for the heat in the cabin, then get the heater from VAZ-2112. It is somewhat better, although it may not have a purification filter or there will be no recirculation function (depending on the model).

It is still possible to purchase a tosol heater. It is needed for engine preheating and car interior. If you are not satisfied with how well air is supplied to the side windows and under your feet, then you can perfectly improve the system yourself. How to do it, we already told. Pay attention to the fact that the nozzles can either be closed with something or they are clogged. So, quite often drivers close their rugs without knowing it themselves. But all this is quite simply eliminated, you only need to devote a little time. As you can see, if the VAZ-2110 heater (an injector) does not heat well, the reasons can be a whole mass. Most often you can fix it yourself.

About problems with the flap

As noted a little bit above, two kinds of dampers are installed at the factory: an old and a new sample. In the first case, it is plastic with a foam rubber seal. The special quality it does not shine and in the process of operation quickly fails. The second type is more reliable, since the damper is metal, and the sealant is rubber. So, on the VAZ-2110 there are two flaps: the upper and lower. The first is responsible for supplying cold air to the salon, the second - for the receipt of warm air. If you hear the flap move while the switch is moving, but the air is cold, like blowing, and blowing, then it is possible that the drive is out of order or the damper itself. In the latter case, it is easiest to change it to a new one. In some cases it makes sense to use glue, for example dichloroethane. However, one must understand that for this it is necessary to disassemble the heater, and this is a laborious occupation.

Use the ACS controller to move the lever to minimum. The cold air should blow. If you transfer to the maximum, and there will be no flow, this indicates a malfunction of the lower flap, which is responsible for the supply of warm air. But you need to watch whether the top closes. If there is no cold flow, then it is closed. Another probable cause is jamming. This happens because of a banal distortion or stuck due to rust. You can try to remove the central deflector, climb to the damper by hand and try it there to move it. Another element may not be fully open or closed. In this case, it's easiest to replace the damper with a new, better one.

Conclusion

As you can see, if the VAZ-2110 stove (carburetor or injector) does not heat well, you first need to understand what the cause of the malfunction is. The solution to this problem can take as little as a few minutes (for example, switching off the temperature sensor), and the whole day (removing the cladding and repairing the mini-motor reducer or replacing it). It is possible to say with great certainty that any malfunction will sooner or later appear. The point here, rather, not in the negligence of the driver, but as an assembly. Nevertheless, the Volzhsky Automobile Plant produces very tolerable automotive equipment. Well, in principle, and everything that can be told about what are the problems with the stove and how to deal with such malfunctions. Each case of a heater failure is individual, so you may not find a solution in this article. Nevertheless, the problems encountered here are most often described. You can save a few hundred or even thousands of rubles on repairs and do it yourself. In return, you will receive a precious experience, which you can easily use in the future to refine or repair the stove of your car.