How to fix the stove in the car Lada Priora. Solving the problem of bad heating with a stove on the Lade Priora Priora began to warm the stove

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If in the car (prior interests us most at this moment), then the driver and passengers this situation delivers a lot of inconvenience. In the summer, this problem is irrelevant, because no one is particularly worried about what the heater is located. And only with the onset of cold weather, the overwhelming number of motorists is puzzled by the problem of the non-working heating system.

Possible causes of cold air

The situation is common when the cold air blows from the stove of priors, the reason for this may be not alone. It is in determining the malfunction and is the main problem. The reasons for not blowing the stove on the prior may be somewhat:

The engine cooling system breakdown is the most common problem. It is with it that it is worth starting diagnostics. In most cases, the stove does not turn on on the prior for this reason.
Highly to be replaced with a new one. This procedure should be performed every six months, without waiting for the moment when the stove starts blowing cold air.
The stove is bad on the prior, perhaps due to the damper, which can be in the jammed state. It can not open completely, blocking the path of hot air flow paths.
And the problem may be in the motor deuctor. It is necessary to check it on working capacity.
If the stove does not work on the prior as you would like to pay attention to the control unit.
The temperature sensor may also have a negative impact on the health of the heating system. To decide on this moment, you will need to disable the sensor and see how the heater will behave.

We carry out a comprehensive diagnosis

Not so easy. Even experienced motorists do not manage to cope with this task quickly. In order not to make such a large volume of work invested, it is better to first diagnose the heating system. It is necessary to act as follows:

Take the channels through which the cooling fluid comes to the heater. They must be warm when the stove is turned on. In addition, when pressed on trunk rubber hoses, resistance should be felt. If the resistance is not felt, you can talk about the fault pump pump. This mechanism is responsible for creating a pressure of fluid flows necessary for the normal operation of the heater.
A small secret may be useful to owners of the Lada Priors: The stove blows with cold air for a long time and warms up not as fast as I would like? Then you can try to fill the coolant to the bottom mark in the tank. In this case, the liquid will warm up faster. If this method is practiced, it will be necessary to constantly check the level of the coolant.
If working, you can talk about the problem in the bearing, which is located on the electric fan. It is impossible to ignore this situation, because in the future it can jam the fan and repair will gain much larger scales.
Do not work stove? Perhaps the problem is hidden in the F9 fuse with a par value of 25 A. Its functions are to protect the power electrical heater lines. Dropped fuse must be replaced. If a similar situation occurs with enviable constancy, then all electrical heater circuits must be checked, insulation of windings on the fan and the presence of power circuit overload.

No heating at idle

This question is not in vain for a separate consideration, because it worries many motorists and the solution to the problem can be much more complicated than expected. So, you have a prior, does not warm the stove at idle, although when moving the car, the interior is heated in normal mode. Here you can also identify several possible reasons:

Insufficient coolant level.
Leaks that lead to a decrease in the level of antifreeze.
Availability .

If the first two problems can be easily diagnosed and eliminated, then the case is much more complicated with air traffic. If you excluded the first two reasons and still does not heat the stove of priors at idle, you need to eliminate the air stopper. It is necessary to act as follows:

We dismantle the screen from the engine.
The clamp is lowered, after which it is necessary to remove the heating tube of the throttle node. Of the two choose any.
On the expansion tank we unscrew the lid. On the neck, we place a clean rag and start blowing into the expansion tank. The air supply must be carried out until the coolant will begin from the tube that has previously removed.
We immediately wear a tube on the fitting and thoroughly tighten the clamp.
Install the screen.

If the option with blowing a tank is not suitable, you can go to another way. Warm the engine so that the pressure in the heating system has risen. After some time, the car and remove the hose from heating the throttle node. In this case, the cork from the tank is not required. As a result of high pressure through the tube, coolant will be supplied. It remains to put the tube on the fitting and tighten the clamp.

Now it should not cause difficulties the stove of the prior, faults how to eliminate, you know, and also to diagnose and identify the source of problems. Let the heater on your car always be turned on, working properly and give comfort, regardless of the weather outside the window.

With the onset of cold weather, the first faults of the Lada Priora heater are also beginning. Situations can be different, in one case, problems can be with a fan, in another with dampers, etc. Today we will tell you how to perform the repair of the stove on Priors do it yourself.

Problems in the engine cooling system?

As practice shows, most faults of the stove of the prior arises due to SOD (engine cooling system).

In this case, the procedure is as follows:

1. We check the level of coolant (coolant) in the expansion tank so that it be between the MIN and Max marks. If the coolant accounts for all the time to attract, then the cooling system flows somewhere. It should be carefully inspecting all the nozzles for the presence of the flow, as well as pull the clamps. By the way, so that warm air went to the salon, many car enthusiasts in winter specifically fill the coolant to the label "Min". After all, the smaller the fluid is in the system, the faster it will be heated.

2. We check the circulation of coolant in Soda, turning attention to the expansion tank.

Video example:

If there is no toosol circulation, or it is not sufficient, then the pump can be faulty (it should be replaced) or the cooling system clogged.

Why the stove does not work on the Lada Priora

Lada Priora is in many ways similar to his progenitor VAZ of the tenth family, including the heater device. The manufacturer decided to leave the principle of the stove, replacing only some elements new. Together with this, Lada Priora inherited acquaintances, for example, when the stove does not heat and blows with cold air.

Heating system elements (stoves)

The fact that the stove "Priors" is 95% similar to "dozen" can be seen by catalog numbers:

Heater assembly (2170-8101012 or 2111-8101012-10).
Air Flow Distribution Motor (2170-8127100). Distributes air flows to feet / face / windshield. It is inside the torpedo.
Air temperature sensor in the cabin (11186-8128050). Located on the ceiling.
Heater controller (KUO) or stove control unit (21703-8128020). The block on which the driver sets the parameters of the stove. Located in the panel.
Resistor Extension or additional resistor (2123-8118022). Determines the speed of rotation of the fan stove. Fastened in the engine compartment.
Heater Electristant (2111-8118020). Located under the hood.
Heater valve motor (2110-8127200). Distributes air flow into the salon (Street / Radiator stove). Inside the heater assembly.
Air filter (2110-8122020).
Radiator stove (2110-8101060). Located inside the heater.

A malfunction of one of these elements causes problems in the work of the stove.

Principle of work stove

To independently determine the problem of the heater, you should understand the principle of its work.

The heater controller receives a signal from the temperature sensor in the cabin and compares it with the temperature that the driver put. If there is a difference, then Kuo sends a signal to the stove motor deuctor (located under the hood) so that it is closed or opened to a certain amount of the stove valve for greater supply of cold or hot air.

After setting the desired fan speed of the stove, the heater controller sends a signal to an additional resistor (in the engine compartment), which, due to the built-in resistance, sends a corrected signal to the fan. At the maximum speed, the resistor is not used and the electric fan rotates at maximum speed.

Air direction (face / foot / windshield) Determines the driver, exposing the required value to KUO. After that, the signal comes to the airflow distribution motor (inside the panel / torpedo), which moves the flap in the desired direction.

If the stove blows with cold air (does not warm)

The reasons why the stove "Priors" is bad may be somewhat (in brackets there is a percentage of breakage based on the results of the survey among the owners of this car):

The malfunction in the engine cooling system (the cutting radiator is cold and cannot give heat). Turn both heater radiator hose, they both must be hot. Sometimes the reason lies in the radiator itself (marriage, not perfectly productive) (8%).
Dirty salon filter. Try to remove the filter and check the operation of the stove (2%).
The stove damper does not work, it is simply jammed (17%).
Faulty stove motor (16%).
Faulty air temperature sensor in the cabin. Try to turn it off on time and check the operation of the heater (6%).

Paragraphs 3-6 may also be a reason when only hot air from the stove is constantly blowing.

Mode switch does not work (face / feet / glass)

Possible causes (in brackets indicated percentage of breakage based on the results of the survey among the owners of this car):

Defective heater controller (13%).
Faults of the air flow distribution inside the cabin (8%).

The stove works only in 4 position

If the first, second or third position of the stove does not work, therefore (in parentheses the percentage of breakage is indicated according to the results of the survey among the owners of this car):

Faulty stove resistor (7%).
Faulty heater control unit (13%).

If noise stove

The electric fan bearing is buzzing (17%). Also additional noise can cause a dry leaf that fell under its blades.

The stove does not turn on

Fastened the fuse to the F9 (25a) stove.
Faulty heater control unit (13%).

Conclusion

The heater of the car is not a simple system, but according to the reviews of the owners - is not entirely reliable. Try to determine the fault of the stove starting from the check, and then the remnal details on knowingly sound. Do not forget that the reason may be in a bad contact or cliff of car wiring.

We have already written that the heater of the VAZ 2110 and Lada Priora is very similar, perhaps you will find a lot of useful on their website. And what problems did you test with the stove? Did you have solved them? By participating in the survey, you help other motorists to determine the reasons. Read also other articles on the repair and operation of Lada Priora.

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By car "Lada Priora" the heater is not just a stove. In fact, this is a full-fledged climate control device. In terms of its characteristics, the stove "Priors" is not inferior to foreign devices of this type. But as well as all the mechanism, the stove "Priors" may fail. In this article, a review of the heater and features of its repair.

Features of the stove priory

Climate control of this car in some options is designed to install the air conditioner. Therefore, the device of this device in this case is a little different than that of the VAZ-2110 heater. This article discusses the standard version of the heater. Although they have a lot in common. The stove (heater without air conditioning) "Priors" includes the following large nodes:

Case stove.
Air duct system.
Electronic heater control (ECU) with control console.

This is, so to speak, three basic nodes. All of them, except for the ECU, disassemble and consist of various subsystems. According to conscience, the control unit, with a big desire, can also be disassembled. But it is not worth doing this. This is a thin electronic device, and only a specialist can repaired it. But with two others there are options.

Housing

After the control unit, the stove body is the most complex object. The fact is that it includes several elements:

Corpus consisting of two parts.
Purchasing electric motor with fan.
Small heating radiator with nozzles.
Variable resistor.
Heater air damper.
Microworoscottor, heater damper drive.
Cabin filter.

Attention! Equipped with air conditioning "Priora" has additional elements as part of climate control, but this is a separate topic that is not affected in this article.

All listed elements sometimes fail, and it is quite possible to replace them independently, without resorting to the services of a specialist.

Location and access

As with the VAZ 2110 models and modifications, the heater is located outside the cabin. It is in the engine compartment. Right under the windshield. From the engine, it is separated by a special moto-cardboard partition. And on top is closed with a plastic dual casing, which hides this compartment, in which the heater is installed, also the brake vacuum and the engine cleaner drive.

To access the "Priors" stove, these elements need to be dismantled. Disconnect the cooling system hoses. Unscrew the 3 fastening nuts and remove the housing. This process is repeatedly described and shown in the attached video. Therefore, it is not worth repeating here.

Cabin filter

Most often, fails, or produces its resource precisely this part. He simply clogged with mud and dust. It is expressed in a decrease in the intensity of the fan operation. Sometimes, it is contaminated to such an extent that the stove fuse burns. The load on the electric motor grows so much that the fuse simply "knocks out". The reader is located at the air inlet into the heater. Near the right wing of the car. It is closed with a decorative plastic lid.

Important! Do not wait for pollution. It is recommended to periodically replace the filter 2 times a year. In the spring and autumn.

Electric motor stove

To remove and replace the stove electric motor, on the "Prior" without an air conditioner, you have to dismantle the heater completely. Or at least a little to push it forward. The fact is that this motor is located on top of the stove "Priors" and is under the supporting part of the windshield.

Resistor heater

This element serves as a peculiar fan rotation speed switch. It has several resistance steps. Each step is speed. Malfunction of the resistor to determine easily. If none of the speeds do not work besides the maximum, then in 99 cases out of 100, it is a resistor. And only in 1 switch, in the control unit.

It is also on top. But it is quite easily removed without dismantling all the stove. It is enough to remove the connector and unscrew 1 screws fixing resistor. And that's it.

Micromotor

In the climate control system "Priors" there is no option to disconnect the radiator from the car cooling system. That is, the hot liquid is constantly drawn. Cold air supply is provided by the direction of air flow from the fan using a special damper, which overlaps the radiator and passes the flow by.

Moves this detail Special device - microworoscottor. It is controlled by the control unit. It can also be replaced without removing the fully heater. Although it is located between the vacuum brake amplifier and the stove case. However, its diagnosis and replacement has features that will be described in a separate topic.

Air damper heater

One of the key devices of the system, despite its simplicity. The flap moves on the axis rotated by the micromotor. Located inside the stove "Priory". Therefore, for repair or replacement, naturally, the stove must be dismantled.

Attention! The repairs needed the first samples of dampers made of plastic. Currently, the "priors" put flaps from aluminum. Therefore, there is no need for their repair and replacement.

However, if all the same in the presence of a "prior" with a plastic flap, then the drive protrusion can break it. It is quite simple to determine it. Include ignition, and removing the casing separating a niche with a heater from the engine compartment, to observe the gearbox by switching the thread control handle from hot to the cold. It can be seen that the drive rod rotates, and the temperature does not change. So, the damper must be changed. This procedure will be a separate article.

Radiator

And the main heating knot is the stove radiator. It is located just on the right side, near the damper drive. Naturally, for his replacement, the stove "Priory" will have to shoot. It is attached to the casing of three screws. And after removing the heater it is easy to pull out twisting these screws. Clear the radiator seat and install a new one. This item is made of plastic and aluminum and repair is not subject to repair. Only replacement.

Important! When replacing the radiator, be sure to use a special adhesive sponge, it is glued to the sides and the end side of the radiator. This is necessary to avoid the formation of cracks from shocks about the stove body.

Determine the flow of the radiator is quite simple. Although the coolant coolant on these heaters does not fall into the salon when leakage from the radiator, but when it appears, with any position, the evaporation damper is instantly fall on the windshield. They form a clearly prominent muddy film with a sharp smell of toosol. it clear stove radiator replacement signal.

Electronic heater control unit

This is a mini-computer with its program. The convenience is that it is originally connected to the computer diagnostic channel. Therefore, many faults can be revealed to connect diagnostics to the diagnostic "Priory" diagnostic connectors. But this interesting topic will be described in a separate article.

Useful video on the topic "Removing the" Priory "stove:

Often, Russian motorists who exploit the Lada Priora complain that the stove is poorly working, in the cabin of the vehicle cool, the side and windy windows of the car are frozen. In order to understand why the stove stopped working on the prior, consider the device of the entire heating system on these modifications.

System of Heating Salon Priora

The vehicle is equipped with a stove (heating system) with a climatic complex that serves for comfort during a trip to the car. They are designed to eliminate issues in case of cooling or other weather changes. No one will ask the question why the stove does not work in the prior, nor the driver or passengers.

The car's climatic complex is counted:

actually stove (heater);
fan stove device;
temperature sensor in the salon room;
case part of the air distributor;
air mains;
deflectors (guide stream of air mass).

The air flow from the stove is translated into the body part of the air distributor, from where the airways are sent. According to air ducts, the stream rushes to blowing labs of windshield and side location, to the air mass flow guides in the center and side of the dashboard, as well as to the lower plane of the salon to the polishes on the bottom of the body. With the arrival of frosts, defects of the heating system are manifested, the most unpleasant of which is the one that the stove of Lada Priora and other faults does not work.

Malfunctions of the car heating system

In the car Lada Priora, the stove controller does not work due to the malfunction of the multi-position switch or the imaging fan defect. When troubleshooting this fault, when the fan of the prior stove does not work, the fuse block, which serves as the main vendor supplier for the operation of the ventilation device. Many climate system defects are directly related to the operation of the vehicle cooling system.

In the event that the fan device is good, and the stove is bad on the prior, the defect should be seen to the sequential method of cutting off the proven elements. So, the stove works well on the prior and cool in the cabin:

First stage: On the motor, brought to the optimum temperature, check 2 nozzles, which were connected to the heater, for temperature values. If both products are hot, then the circulation of the air masses is absent, and if one nozzle is hot, and the other is cold, then it shows the absence of a water-cutting of the aqueous solution in the system. We carry out the diagnosis of the heater crane in order to deal with the cooling system solution (water, tool).

To this end, open the hood and translate the crane from one position to another. If there is flow from the heating system, then it must be eliminated, because The insufficient amount of the cooler can provoke the situation when cold air blows from the stove of the priory and in the cabin becomes cool. If the crane rusted and not regulated, it is possible to leave it in this position for the summer when the heating system is not operated. Closer to the cold it is required to replace it.

Second phase: When you find a crane in the working position and failure of the stove from work, we remove the fuel plug of the radiator tank and we look at the presence of a cooler fluid. In the event of the formation of the so-called. "Air tubes" The coolant level is brought to the maximum value (sometimes it happens that cold air blows from the stove due to the lack of a cooler fluid). After that, we turn on the power plant and dramatically press the accelerator pedal several times, which will provoke the cooler circuit and under its exposure to the water pump will squeeze the air layer cork.

In order for air mass faster to move to the output level, it is required to enter the exaltation so that the radiator is below the radiator of the cooling system. So, the circulation of the cooler is restored, 2 the nozzle has become hot, however, the stove on the prior does not work well anyway?

Third stage: Perhaps the dampers do not work, because the open lever on the instrument panel does not mean at all that the dampers have duplicated this command. The failure of the flaps may be associated with the looping of the attachments of the thrust and the cranes of the heater, which blocks them in summertime.

It will not be superfluous when the hood is open to check, the flaps of the prior stove work or do not work, as well as clean the heater from last year's garbage and foliage. If, after these measures to clean the system, the system does not work poorly or does not function the salon heater, then we turn directly to the pipes.

Fourth stage: Check the temperature of the nozzles when the stove is turned on. If the fan is in working condition, the two nozzles are hot, but one begins to cool after a while - it is necessary to change the water pump due to the weak circulation of the cooler. Some motorists manage to install a small water pump under the stove radiator.

Starting to test the heating system, bring the technological process to the end:

The level of the cooler in the extension tank must be between the MIN and MAX marks.
We test the cooler circulation process in the extension tank. Its absence is defined as a water pump defect or clogging of the cooling complex.

This diagnosis of the heating system is over.