The car "Lada Priora" enjoys well-deserved love and respect for our compatriots. A good value for money, the prevalence of spare parts and magnificent maintainability make it the leader of the domestic nevertheless, being the result of Russian development, this car has some drawbacks.

As you know, the "Priora" is a deep restyling of the previous model - 2110. Therefore, most nodes and aggregates switched from "dozens", including the device of the heating and ventilation system of the cabin. Most of the main details of this system are "dozens".

Therefore, such a unification helps a lot when repairing. Unfortunately, this feature leaves the sideways when the fault occurs. Pretty frequent cases when the stove on the "Prior" does not work. Situations are different. In one case, problems can be with a fan, in the other - with dampers, etc.

Main reasons

The reasons why the stove does not work on the "Prior" may be somewhat:

• Improper functioning of the thermostat.
• Radiator clogging
• Incorrect operation of the motor of the heater damper or heater electric motor.
• Malfunction of the heater control unit.
• Incorrect operation of the cabin air temperature sensor.

Preparatory stage

Troubleshooting the heater operation should be started under the condition that the power unit and the engine cooling system is in order to eliminate their effect. To do this, make sure that Tosol is covered in due quantity, the engine is working normally and is functioning normally. And after that, it is already found out why the stove on the "Prior" does not work. Initially, check the coolant level in the expansion tank. Next, you need to start the engine and warm it up to the operating temperature. After that, it is necessary to check the health of the thermostat - to feel thick hoses that go from it to the car radiator.

The top must gradually become hot. If the rubber nozzle is still cold, it means that the thermostat is faulty. In this case, you can continue to work only after replacing this item. Fortunately its cost is small.

Another reason for which the motor may not warm up to the operating temperature is a leakage of the expansion tank. It must keep overpressure in the system. Often a simple replacement of this cover can be completely getting rid of problems.

On the "Prior", unlike the "dozens", the organization of the cooling system is carried out in a different way. And the formation of an air traffic jam is practically excluded there. It may occur if the system is leakageless, either when pouring toosol in a completely empty expansion tank. Eliminates it is simple enough. It is necessary on a heated car to drive a front wheels on some slide and vigorously pay off on the spot. The lid of the expansion tank at the same time should be removed.

Malfunctions of the radiator heater

Another reason for the fact that in the car "Lada Priora" does not work from deflectors), may be the accumulation of dirt in the heat exchanger. When the cooling system is running in the motor block itself, deposits accumulate, which are then distributed throughout the system, including in the stove radiator. These sediments interfere with its effective work. The system will heat the air worse. In this case, the stove radiator can be replaced entirely. It is removed from the engine side. Before starting work, it is necessary to drain the toosol from the cooling system. Then dismantle the leashes of wipers, the "Jabs" lining and push part of the noise insulating shield. After that, disassemble the stove case, disconnect the wires, remove the fan motor along with the impeller and remove the heat exchanger, disconnecting the supply hoses from it.

Problems associated with the damper motor or electric motor fan

A common fault by the Lada Priora car - the stove does not work. Does not blow air at all.

First, you should make sure that it works - from the deflectors should blow at least cold air. If not, then you need to check the integrity of the F9 fuse.

If it is intact, it means that the fan stove does not work. "Priora" is equipped with a "tenth of" fan. Therefore, the removal exactly repeats the procedure on the "top ten" procedure. In some cases, the fan does not spin because leaves or other foreign objects that can block rotation can be blocked between the impeller and its housing. In this case, you can hear the characteristic hum.

Cold air from deflectors can also go and because the motor detector does not work, controlling the flap, which overlaps the stream of hot air. Access to it is also carried out from under the hood.

Often the cause of the motor destructive contacts is becoming the oxidation of conductive contacts. They must be cleared with sandpaper, disassembled the case. Also, you should pay attention to the strength of the air flow. If even at the maximum speed, the air blows weakly, perhaps the case in the closed salon filter. It is located under the hood in the heater housing and creates additional interference.

Malfunction of additional resistance

Often there are situations when the stove switch does not work on the "Prior" - the motor functions only at the fourth speed or only on the first one. The reason here can be in an additional resistance, which slows down the turnover rotation of the stove fan.

This resistance is a block of resistors (the fourth speed is straight, without deceleration). Located in the heater housing on the left side and is fastened with two screws. This resistance is also unified with many domestic models (2110, "Kalina", "Chevrolet-Niva").

Incorrect operation of the salon temperature sensor

There is still a reason why the stove on the "Prior" does not work correctly. It occurs due to the malfunction of the salon temperature sensor. It is located in the ceiling flake.

Element, measuring air temperature in the cabin, gives the command to the opening or closure reducer. Thus adjusts the microclimate in the cabin. Its service should also be checked.

Heater Control Unit

The operation of the heating system is completely tied to it distributes air flow, the intensity of the blowing of various zones of the cabin and the temperature regime. With his failure, the stove naturally ceases to work.

There may be a malfunction of the switches ("Cruffers"). The malfunction of the control unit must be checked later, since this electronic unit and repair rarely gives away. Therefore, it is desirable to be temporarily replaced by a worker to be temporarily replaced by a job, lenting from a friend or in the store on bail.

Features of the heater in the "Prior" with air conditioning

A frequent reason why the stove does not work ("Priora" with air conditioning), is the failure of the rotational speed controller block (RFB), which is located on the heater housing under the hood. It regulates the intensity of the fan electric motor. With his failure, the stove ceases to function at all or acts only at the fourth speed.

The cause of the malfunction often becomes the long operation of the heater in recirculation mode (with a closed air damper) and, as a result, its overheating. Therefore, its performance should also be checked.

Conclusion

Thus, finding the reasons, due to which the stove on the "Prior" does not work, is not such a difficult occupation. The main thing is to observe a clear sequence of actions and understand what the work of a node depends on.

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:

1. Heater assembly (2170-8101012 or 2111-8101012-10).
2. Air Flow Distribution Motor (2170-8127100). Distributes air flows to feet / face / windshield. It is inside the torpedo.
3. Air temperature sensor in the cabin (11186-8128050). Located on the ceiling.
4. 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.
5. Resistor Extension or additional resistor (2123-8118022). Determines the speed of rotation of the stove fan. Fastened in the engine compartment.
6. Heater Electristant (2111-8118020). Located under the hood.
7. Heater valve motor (2110-8127200). Distributes air flow into the salon (Street / Radiator stove). Inside the heater assembly.
8. Air filter (2110-8122020).
9. 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):

1. 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%).
2. Dirty salon filter. Try to remove the filter and check the operation of the stove (2%).
3. The stove damper does not work, it is simply jammed (17%).
4. Faulty stove motor (16%).
5. 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):

1. Defective heater controller (13%).
2. 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):

1. Faulty stove resistor (7%).
2. 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

1. Fastened the fuse to the F9 (25a) stove.
2. 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.

http: //xn--80aal0a.xn--80Sehdb.

In the winter months, find out why the stove does not work and blows with cold air on the prior (or on another typewriter of domestic production), you need as quickly as possible. Of course, you will not turn into a lacy and do not risk nothing to frozen. But ride with non-working heating, at least unpleasant and fraught with different kind of colds.

And it is dangerous to leave on the track and it is dangerous: God forbid, something will break, you really freeze, while the assistance paces. Priora is a generally accepted descendant and successor of Lada- "dozens".

And fundamental constructive changes The manufacturer did not contribute to the stove, only individual elements were changed. Accordingly, the inherent ancestor of the disease, inherited a descendant. All proporation owners in one voice assure that the heating system in it is quite unreliable and can be broken in several nodes. It is worse than the fact that in the summer few people remember the stove and puzzled by checking. Therefore, discomfort is detected suddenly and requires lightning actions.

Why does not the stove work and blows with cold air on the prior? There are many reasons for that. In order of descending, the frequency of cases can be positioned as follows:

• Jammed a furnace flap. It does not open and does not admire warm air into the salon. By the way, the reverse version is possible: if it is closed in the open position, you start feeling in the sauna;
• Heating motor deuctor broke;
• The stove control unit does not work;
• Malfunctions in the engine cooling system;
• The temperature sensor was broken in the cabin, and the heating system is simply not aware that you are cold. Again, in a similar, but opposite case, it may be hot.

Torn filter

Experienced hosts were developed by an action algorithm for clarifying, which was tested by the heating system.

First approach

Before all the checks, you need to make sure that the fan works - it will be unreasonable to climb deeper if the main element does not spin. Further actions are as follows.

• The engine is heated to the desired temperature;
• Touch the pipes leading to the heater. Both hot - order, one has the ambient temperature - it means there is no flow circuit;
• The hood opens, there is a crane and turns to another position. If he encourages, you will have to urgently cry.
• The system is checked for leaks. The detected eliminates: the constant shortage of the cooler is also the cause of cold imagination;
• The crane works, there are no leaks - a plug is removed from the tank and the fluid level is checked. Often an air stopper is formed in the reservoir; In this case, the cooler fills up to the norm, and the gas pedal is pressed several times. The cycle of the liquid will resume and wait the tube from the reservoir;
• For greater efficiency of the last step, it is better to go to the nearest buds to the nearest pitch so that the car radiator is below the stove radiator.

Second approach

When (or if) both pipes are filled with hot liquid, go to the flaps.

• Again you will have to climb under the hood, this time then to watch the work of the flap;
• If it twisted or jammed, you can try to gently shake out of the inside of the cabin. For this, the central deflector is removed, unscrewed the guides from plastic to reach the jammed element. Access is possible only for a fine limb, so it is desirable to invite a female person to the procedure if it is not against;
• In case of serious problems with the damper (the attachments were attached, there was plastic from temperature or he cracked) you, alas, are waiting for heavy work: you will have to disassemble half the heating system.

Third approach

Microreductor and solid headache. First, the status is checked:

• The left handle is translated into the "min" position. After a 15-second wait, the engine launches;
• Disconnected the controller, which is called for Sao;
• Tester measured testimony On both contacts. Resistance should be 800-1200 ohms for aggregates 1303.3854; 1313.3854 and 1333.3854; For the controller 1323.3854, the norm is 3600-5000;
• The same operation is carried out at the position "MAX". Now data in the band 3200-3500 for the first group and 1200-1600 for 1323.3854;
• In the absence of resistance or its unchanged - the track erased on the sensor. Separately it is not for sale, so you have to change the MMP entirely. It is clear that not all the reasons why the stove does not work and blows with cold air on the prior, you can eliminate on your own.

However, following the recommendations above, you will at least understand that it prevents you from riding comfortable. And also appreciate the upcoming costs. For example, if you have to change the entire SAU unit, you will have to lay out about 1.5 thousand rubles for it. Plus the work of the electrician.

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:

1. The level of the cooler in the extension tank must be between the MIN and MAX marks.
2. 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.