The stove does not heat well on a VAZ 2114 - reasons and solutions

In winter, driving without interior heating is a dubious pleasure. But VAZ 2114 owners often encounter this situation, because their stove stops working.

Today we will understand the structure of the stove, consider the main causes of malfunctions and ways to eliminate them. Alas, the stove may not heat for a whole list of different reasons. Your task as a car owner is to find these causes and eliminate them. Do it yourself or with the help of car services, decide for yourself.

car heater

What is a stove and its functions

In the engine cooling system, the heater takes part of the heat, directing it into the car interior and maintaining the desired temperature there.

It is a whole chain of interconnected parts:

1. Pipes.
2. Stove radiator.
3. Tap for adjusting the antifreeze level.
4. Dampers with air ducts that control and direct air flow.
5. Electric fan.

The combination of these elements ensures an uninterrupted supply of air to the car interior and maintains the desired temperature in it. What to do if the VAZ 2114 stove does not heat well, the stove has completely stopped working? We will indicate the main causes of the malfunction.

The main reasons for the ineffective operation of the heating device

1. The device fan does not turn on. To understand that the fan is not working, you need to turn on the heater at 1-3 intensity with the car running. If no extraneous noise occurs, then the element does not work. It could fail due to a blown fuse, loose contacts in the mounting block, stuck ignition relay, etc. 2. Faulty thermostat. The stove on a VAZ 2114 also does not heat well if the thermostat does not work. The liquid that it circulates does not have time to heat up - hence the problems. 3. Air lock. The reason why the stove on a VAZ 2114 does not heat up may be a traffic jam. It occurs when air enters the radiator and then into the thermostat after the engine has stopped running. When the ignition is turned on, air enters the heater core. The device is not operating at full efficiency. To eliminate the air lock, just add antifreeze. 4. Problems with the faucet. In most cases, the problem of why the stove on a VAZ 2115 does not heat well is hidden in a malfunction of the faucet. If it does not open, then it is necessary to replace it, as it has soured. Attempts to open it may result in coolant flooding the interior. 5. The radiator of the device is clogged. You need to remove it to clean it or replace it with a new one. If the device is clogged, it is enough to blow it out under pressure. 6. Fan impeller problems. A multi-directional impeller reduces the efficiency of the heating device. 7. Low quality heating radiator. It is not recommended to purchase Ukrainian radiators, since the distribution of heat into the interior from them is not provided for by the design. It is better to choose the DAAZ model. 8. Lack of required pressure. If the stove heats only at high speed, then the problem is in the pump. This element does not organize the normal circulation of the liquid, which affects the flow of the liquid. It is enough to change the pump to normalize the flow of coolant. 9. Cooling fluid level is low. If the stove on a VAZ 2114 does not heat well, then you need to check the level of cooling fluid. It should be set at maximum or higher. 10. The cylinder head gasket has burned out. The reason why the stove on a VAZ 2114 does not heat well may be a violation of the integrity of the cylinder head gasket. This is easy to recognize: the coolant begins to smell like gasoline, and white smoke comes out of the muffler. 11. Cabin filter clogged. The filter is used to purify air coming from the street. It is located in the engine compartment. Not all cars come with a filter. To check whether it is there or not, you need to press on the stove casing. It is recommended to change the filter only when the air flow into the vehicle interior is very low.

In a number of domestically produced cars, one of the main, frequently encountered problems during the cold season is the poor functioning of the heating system. Experience shows that there are more than a dozen reasons that lead to such a problem. In our article we will look at the main points and factors leading to poor performance of the heating system. The reasons for poor performance of the VAZ-2114 heater are similar to the reasons for the VAZ-2109. You can read more in the article: The VAZ 2109 stove does not heat well. And now more details about the fourteenth.

Cylinder head gasket

Sometimes the cause of the malfunction is hidden in a burnt-out cylinder block gasket.

Cylinder head gasket

You can determine whether the gasket is intact by these signs:

1. Antifreeze smells like gasoline and contains exhaust gases.
2. When the engine is running, white smoke comes out of the exhaust pipe.
3. There is a light mixture on the dipstick and oil filler cap.

If at least one of these signs is detected, you need to urgently check the condition of the gasket and replace it if necessary, otherwise the problems will be much more serious.

Causes

The main reasons why the stove does not heat well:

• Airiness of the system.
• The stove faucet has failed. Leakage or incomplete opening.
• Fan failure. There is no warm air supply.
• Defective radiator unit or clogged.
• There is no necessary pressure created by the pump.

Airiness of the system

As the antifreeze cools after the engine is running, air pockets may form. The next time you start the engine, the pump expels air into the radiator unit of the heating system.

To resolve this issue, you must do the following:

• Disconnect the hose from the carburetor fitting.
• Remove the cap of the expansion barrel and thoroughly blow it out so that antifreeze flows out of the fitting.
• Connect the hose to the carburetor fitting.

Work to eliminate air pollution has been carried out.

Broken faucet

The presence of a faucet leaking or its incomplete opening often creates a malfunction of the vehicle’s stove heating system. In such cases, the variety of solutions is very wide. To solve this problem, in some cases, even replacing the ball valve is required.

We recommend that you take steps to fix this problem without replacing the original faucet:

• The reason for poor opening of the faucet may be the formation of a build-up on it, which led to oxide on the part. Try tightening the cable by bending it with pliers from the side of the driver's door. Act very carefully so that the tension does not lead to the faucet breaking.
• If the faucet completely fails, we recommend contacting an auto repair shop or replacing it yourself.

Heater fan failure

A fairly common reason for the lack of normal heating of the car interior is poor operation of the fan or its failure. If you observe strong heating of the radiator, we advise you to first pay attention to the impeller, or rather to the presence of multidirectionality in it. If the fan completely fails, try to determine the reason that caused its inoperability, or replace it

Radiator block clogged

Any radiator cylinder needs periodic cleaning to remove lime and dirt deposits. Many car enthusiasts even have a personal recipe for cleaning the radiator block. For all beginners, if such a problem occurs, we recommend contacting a car service center.

If you want to clean the radiator block yourself, you need:

• Have a container, a set of wrenches, cleaning fluid and screwdrivers available.
• It is necessary to carefully pass the liquid through the radiator block.
• Use a cleaning fluid that is reputable and of high quality.

Poor pressure in the engine cooling system

If the stove does not heat well at idle, and if there is normal functionality while moving, pay attention to the performance of the pump. In these cases, the pump does not ensure normal circulation of antifreeze. There may also be a lack of antifreeze in the system. To solve this problem, it is necessary to either add antifreeze to the appropriate level, or replace the outdated pump with a duralumin pump

Deterioration in the performance of stove heating can also be observed due to: burnout of the cylinder head gasket, failure of the thermostat, insufficient amount of antifreeze and defective radiator unit. After determining the cause, it will not be difficult for you to eliminate it yourself or by contacting a service station.

Let's consider one of the most common problems in VAZ 2114 2113 2115 cars - the stove does not heat or does not heat well.

The stove works, but cold air blows on the glass.

In rainy weather, the windows constantly sweat. The problem is that on the air temperature regulator (cold-hot), the damper that cuts off the cold air flow does not close completely, as a result, cold air enters the glass and sometimes into the side air ducts. At the same time, warm/hot air is blown into the legs and into the central air duct. It's all about the cable that is attached to the damper, this is what it looks like:

It is located under the plastic trim to the right of the driver. The problem with it can be solved very simply with the help of ordinary round nose pliers. Here is a real example of such a problem in the video:

The stove doesn't work, the air doesn't blow.

If the heater motor is working properly, but warm or cold air does not flow through the air ducts, then most likely the “heater relay” is faulty; it is located under the steering wheel on the left and can be easily changed. It looks like this:

What you should pay attention to if the stove in a VAZ 2114 2115 2113 does not heat well

:

1. First of all, look at the coolant level; if it is minimal, the stove will begin to heat up the interior poorly. This malfunction is quite easy to fix; just add coolant to the required value. Just wait until the engine has cooled down before opening the expansion tank cap.

2. Check that the thermostat is working properly. When it doesn't work properly, the heated antifreeze doesn't reach the heater, resulting in a cold car.

3. A clogged cabin filter can affect the flow of warm air into the cabin, resulting in poor heating of the windows.

4. In severe frosts, place cardboard on the radiator; this is a simple but very effective remedy in severe frosts.

Thermostat

When the stove on a VAZ 2114 does not heat well, the thermostat may be the cause. The valve does not open, which causes a disruption in the circulation of the coolant. The engine boils quickly, and the heater doesn't work well or doesn't work at all in winter. You need to check if the valve is working. With the engine warm, touch the upper and lower hoses of the main radiator; they should be hot.

Thermostat

If one of them is cold, the valve is faulty. Or remove the thermostat and heat it in a container of water. Before the water boils, the valve must open. Does not open, needs to be replaced with a new one. The thermostat is inexpensive. Experienced car enthusiasts advise changing them according to the time of year, guided by the fact that the colder it is outside, the lower the valve opening temperature.

Problem with switches

To test the heater switch, you need a simple 12-volt light bulb with two wires. It is necessary to remove the central part of the instrument panel and do the following:

1. Turn on the ignition; 2. We connect the negative contact of the light bulb to ground with a wire; 3. We connect the positive contact alternately to outputs 1-2-3 on the additional resistor.

If the light comes on, the switch is working properly. Otherwise, the problem may be a blown fuse or an open circuit. If only the third speed does not work, you need to replace the additional resistor.

Radiator

The reason could be the radiator. Over time, its honeycombs become clogged with debris and dirt, causing the supply of warm air to become weak. In this case, the radiator is washed with appropriate solutions. It happens that honeycombs are damaged mechanically, which impairs the circulation of coolant.

Radiator for VAZ 2114

This radiator cannot be repaired. And you only need to buy new, not used. To replace, you must disassemble the front panel and console. Drain the antifreeze from the radiator through the tap into a container. Then remove the pipes from it and unscrew the fastening bolts. After installing a new one, fill in antifreeze. It is recommended to pour into the expansion tank in small portions to avoid the formation of air pockets. Fill 200-300 ml. You need to wait a few seconds and add more until the system is full.

Prevention

And in order not to wonder, sitting in a cold car, why the stove stopped working, you need to regularly inspect all the heating elements of the car. Clean periodically. Change antifreeze more often. From time to time, check the condition of the pipes and tap leading to the radiator for leaks. If you notice cracks on a part, it is better to immediately replace it with a new one. It is recommended to completely flush the system at least once every 2 years.

Airlock

Another reason why the 2114 heater does not heat well at idle may be airing in the system. After turning off the engine, air sometimes enters the radiator from the expansion tank and remains in the area of ​​the thermostat. And the next time you start the engine, air will circulate instead of liquid. As a result, the engine heats up quickly and the heater does not work.

Air lock on VAZ 2114

To get rid of this trouble, loosen the coolant pipe clamp and slowly fill in antifreeze to the desired condition. It should be remembered that the liquid must be used of the same brand; mixing is strictly prohibited. You can try driving up a steep slope in front, remove the cap from the expansion tank and wait about 5 minutes. Usually the system itself pushes unnecessary air out.

Why does the stove heat poorly or not heat?

Below are the main reasons for a poorly functioning or non-functional stove, as well as ways to solve the problem.

1. The stove fan does not turn on. The heater fan (interior heater) does not work.
2. Thermostat not working. If the thermostat is not working, then it constantly circulates coolant in a large circle, which does not have time to heat up, and as a result, the stove does not heat. You need to check the thermostat and replace it: How to check the thermostat? How to replace the thermostat?
3. Airlock. An air lock is formed as follows: after the engine is running, when the coolant cools, air penetrates into the upper part of the radiator, from where it moves to the thermostat. In the morning we start the engine, and the pump circulates air into the interior heater radiator. To remove an air lock, use the corresponding article: How to remove an air lock?. There is also another way: we drop the pipe onto the stove, and slowly add antifreeze there until it is full.
4. The stove faucet does not open completely. In 90% of problems with a poorly heating stove, the problem lies precisely in this. In this case, you do not need to tighten the cable of the stove faucet. You need to bend the cable from the gas pedal; when you bend over, you will see it. You just need to use pliers to pull the cable to increase its tension. If the stove faucet does not open, then most likely it has soured and needs to be replaced: How to replace the stove (heater) faucet? If you still try to open it, there is a chance that you will rip it off and flood everything with coolant.
5. The heater radiator is clogged. In this case, you need to remove the heater radiator and thoroughly blow it out or install a new one: How to replace the heater radiator?
6. Fan impeller. If the heater radiator is hot, then the problem is most likely in the fan impeller. There is a multidirectional impeller.
7. Poor quality heater radiator. The fact is that there is a Ukrainian-made heater radiator. This radiator simply does not provide for high heat transfer to the interior by design. Therefore, it is better to use a DAAZ radiator.
8. The pump does not create the required pressure. If, for example, the stove does not heat up at idle, and the stove only heats up at speed, then the problem is with the pump. The bottom line is that the pump does not ensure normal circulation of coolant and then the fluid is weak. Similar symptoms are also accompanied by low coolant levels. Instead they put in a duralumin pump, Belmag. There have been a lot of fakes of HEPU lately, so I don’t advise you to use this manufacturer.
9. Low coolant level. The coolant level should be at the max mark or a finger higher (in winter).
10. There is an option to add an electric pump from Gazelle.
11. The cylinder head gasket has burned out. If oh. the liquid smells like gasoline or exhaust; The engine oil smells wow. Liquid; Thick white smoke is coming from the muffler, then the cylinder head gasket has most likely broken.
12. The cabin heater filter is clogged. Replace the filter by following the link: How to replace the stove cabin filter?

Also see other useful articles on this topic: The VAZ stove does not work, what should I do?

One of the weak points of domestic cars is the stove, which constantly breaks down. Thus, this article covers the topic - the VAZ 2114 stove does not heat well. As a rule, there are dozens of reasons that lead to this malfunction, however, some of the factors are the most common. This article will look at just such reasons.

The most common reasons:

1. Air lock. 2. Problems with the stove faucet (leaking, incomplete opening). 3. The fan (impeller) does not work. 4. Radiator clogged (poor quality radiator). 5. The pump does not create the required pressure.

Air lock - solution:

As a rule, air pockets form after the engine is running, at the moment when the antifreeze cools down. Air enters the radiator and enters the thermostat. If you then start the engine, the pump expels air into the heater radiator. In order to get rid of an air lock, you must perform the following steps:

• Disconnect the hose from the carburetor fitting. • Open the cap of the expansion tank and blow forcefully until antifreeze flows out of the fitting. • Reconnect the hose to the fitting.

Problem with the stove tap - solution:

Quite often the problem lies in the stove faucet, which either leaks or does not open completely. In this case, the range of solutions is quite wide, including replacing it with a water ball valve. Thus, it is recommended to act according to the situation, if possible try to preserve the original part:

• If the faucet does not open completely, then the part may be soured. You can try to tighten the cable, bending it from the gas pedal side, using pliers. You must act carefully so as not to rip off the tap. • If the faucet is completely out of order, it is recommended to contact a service station or try to replace the part yourself.

The fan does not work - solution:

Often the problem is hidden in the fan. Sometimes there is a situation when the radiator is hot, then, most likely, the fault is hidden in the impeller (sometimes there is a multidirectional option). In cases where the fan does not work, you can think about replacing it or looking more carefully for the cause of the malfunction.

Radiator clogged - solution:

The vast majority of VAZ car owners are well aware that the radiator must be periodically cleaned of lime, dirt, etc. Some motorists even have their own recipes for cleaning the radiator. However, inexperienced beginners are recommended to solve the problem at a service station.

The radiator is clogged - what to do:

• It is necessary to stock up on cleaning liquid and appropriate tools (screwdrivers, keys, basins, etc.). • Carefully push the fluid through the radiator. • It is advisable to use good quality cleaning products.

The pump does not create the required pressure - solution:

In such situations, when the stove does not want to heat up at idle, but works normally during stable operation, the reason most likely lies in the pump. In this case, the pump does not provide the necessary circulation of coolant, resulting in a weak flow. Similar symptoms are observed with low levels of antifreeze. The solution to the problem may be to replace the old part with an aluminum pump. It is advisable to use a high-quality option.

Among other things, the stove may not work well for reasons such as low antifreeze levels, a burned-out cylinder head gasket, a poor-quality radiator, or a malfunctioning thermostat. Having found out the cause, it will not be difficult to fix the malfunction yourself or at a service station.

If the stove on a VAZ 2114 does not heat, then this is a big problem in the winter season. Let's consider the main causes of device failure and ways to eliminate them.

Fuses, relays

One of the simplest and at the same time unpleasant breakdowns is fuses. The malfunction is simple, because replacing the fuse is easy. But this breakdown becomes unpleasant due to the fact that it is difficult to find out why the fuse blew. Often, these elements in VAZ cars burn out due to short circuits in the wiring. Fuse F7 is responsible for the operation of the stove in these models.

PREVENTION METHODS

To avoid a repeat incident First:

• A preventive measure will be required - this is advance disassembly of the system and cleaning of each part.
• The presence of a clean cabin filter under the hood. As you are dirty, you understand that a clogged filter prevents the flow of hot air, and for the same reason the radiator becomes covered with a large layer of dirt.
• Fresh antifreeze. It needs to be changed regularly and maintained properly. Then. level, the air supply to the radiator through the thermostat will be uninterrupted.
• Hermetically fixed tap and this. You can check the radiator when the engine is well warmed up.

A functioning heating system will be confirmed by well-functioning, silent operation of the fan and a continuous flow of warm air even in a static position. Good luck.

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Am I freezing in my Samara or why doesn’t the stove on the VAZ 2114 work and warm up? The relevance of this topic is more relevant than ever at a time when it’s the height of winter and cold weather outside, and not everyone’s car is warm. This problem is typical not only for used cars, but also for new cars. What plays a role here is the factor of poor quality assembly, and not the manufacturing defect of the part.

If such a breakdown occurs, you can fix it on your own, but not everyone knows about it, and sometimes there is no money or time to send it to a service center. To help many car owners quickly eliminate the cause of the breakdown, consider the article below with recommendations about the heating system.

Heater device

The stove installed on the VAZ-2115 injector is exactly the same as on the earlier “nine”. The main elements of the heating system are as follows:

• fan;
• radiator;
• air ducts;
• damper rods;
• heater valve;
• resistor;
• motor;
• thermostat.

Coolant, heated from a running 8-valve engine, enters directly into the radiator. The fan blows on the metal plates of the heat exchanger and the air heated in this way enters directly into the interior of the car.

Immediately after the heating circuit is turned on, the heating valve opens and supplies antifreeze to the radiator.

The rods regulate the air supply and the direction of its jets. With their help, you can provide heating to the windshield or direct hot air to frozen feet. By including a resistor in the circuit, it is possible to create a certain resistance, which allows you to regulate the operation of the heater. The thermostat ensures the movement of coolant through two circuits (small and large).

If the last device jams, then the movement of antifreeze occurs only through one of them, which increases the risk of overheating of the power plant. The heating of the car interior is organized through a large cooling circuit. That is, if the thermostat gets stuck on low, heating will not occur.

Often there are also problems with the fan motor. In this case, warm air will not be able to pass through the air ducts and deflectors in the cabin.

As you might guess, in general, the heating system is quite simple, and has previously been used in many other cars. New cars usually do not have any problems of this kind, but over time, as they are used, the chances of a breakdown increase significantly.

Common Causes

The stove on the VAZ 2114 does not work and does not heat, then find out the reason from the list below and fix the problem

:

• The heater cooler does not work. It may be broken or no electric current is supplied to it. It is necessary to ring the circuit with a tester and the source of the breakdown will become known;
• The thermostat is stuck. When not working, it will circulate only cold liquid in a circle, as a result of which the stove heater will not be able to heat up. In this condition, the thermostat cannot be repaired; most likely, prepare for a complete replacement;
• An air lock that forms after we turn off the engine. An air space is formed in the upper part, which at the next start is drawn in by liquid and moves into the heater radiator. This can be eliminated in the following way: loosen the clamp and remove the heater radiator pipe, add as much antifreeze as possible into the radiator through a watering can and put the structure back together. Antifreeze under pressure will squeeze out the air, and this way the circuit will be heated. The root cause was a low level of coolant in the radiator;

The list is certainly not exhaustive, but it lists the most basic ones so that the driver can immediately get his bearings and start searching. There may be situations where none of the above points apply, although this is unlikely.

This problem is most typical for VAZ cars, unlike foreign cars. But nevertheless, you can calmly deal with it and prevent it from reoccurring in the future.

Let's hope that our recommendation article on the topic of the stove on a VAZ 2114 not working and not heating will help you eliminate the cause, especially in 20 degree frost and on the road, so that you can continue your journey in warmth and comfort.

Probably one of the most unpleasant breakdowns that can happen to a car in winter is heater failure. The heating system takes on special importance in cold weather - no one dares to argue with this statement.

For what reason the stove in a VAZ-2115 car does not heat, and how exactly to eliminate such a problem, we will tell you in the article below.

CAUSES OF FAILURES IN VIOLATED

OPERATION STARTING OPERATION OF FAN IN HEATING ROOM When

SYSTEM of such a malfunction, the stove will have to be disassembled to find the breakdown. But before that, you need to start the car and turn on all three fan power levels one by one. If there is no additional noise, then it’s time to start disassembling.

VAZ in Also 2114 the stove does not heat if the thermostat is faulty. With such a breakdown, the cooling liquid circulates in a circle without having time to cool.

ACCUMULATED AIR CLOGGAGE

An air lock in the cooling system can form if the engine has already stopped running. At this moment, the temperature of the coolant begins to decrease. It is then that air can leak into the upper part of the radiator, and then the thermostat moves. Later, when starting again, the engine pump will drive the accumulated air from the radiator to the heating system thermostat.

Helpful advice: to easily get rid of the air lock, you need to remove the pipe and slowly fill in antifreeze to the maximum.

TAP marks

Attention, the most common nine. In ten cases, the reason is that the faucet does not open completely. There may be two reasons for this problem: it is completely out of order and must either be replaced; it is poorly secured and, due to the heater cable, it is located near the pedal assembly. The cable needs to be tightened a little by grabbing it with pliers.

If the stove does not supply hot air to the cabin at the same time, and the faucet is leaking, then the latter must be urgently replaced. At this point, a greasy coating forms on the glass, and the same stains may appear on the floor, and a pronounced smell of antifreeze and faucet hovers in the atmosphere of the cabin.

heater antifreeze VAZ 2114

THE RADIATOR IS CLOGGED IN THE HEATING SYSTEM

If the heater radiator is clogged with dirt and debris, then the heater does not blow well and the warm air flow barely enters the cabin. unnoticeably especially unpleasant if there is decent frost behind the glass.

THE QUALITY OF THE RADIATOR IN THE HEATING SYSTEM LEAVES THE BEST

This kind of news about the performance properties of the radiator is most often received by car owners who have purchased a used VAZ 2114 before the onset. And until the cold weather in the summer, they don’t even suspect the problems ahead. Also, a bad radiator can be installed at a car service center. A gullible customer who did not control the results of the work of the master can become a victim of deception and negligence. In any case, the bad radiator will have to be replaced with a high-quality one. There is no radiator here.

heater options for VAZ 2114

Radiator replacement procedure:

• Disassemble the front panel and remove Drain.
• Console antifreeze into a special clean container (radiator) through either the drain hole.
• Remove the center panel, glove compartment, side panels.
• Unscrew the screws and bolts that secure the panel to the body and to the body.
• metal to remember the cables.
• Push the freed side into the dashboard.
• Remove the pipes.
• Take out the old one and replace it with a new radiator.
• Screw all other serviceable parts into their original places.

LOW If

PRESSURE There is not enough pressure in the heating system on the 2114 VAZ, the stove does not heat up at idle. This pressure is provided by the pump. It is easy to track and recognize this cause of a malfunction: while driving, heat enters the cabin. The way out of the situation is to replace, preferably, the pump with an aluminum one produced by Belmag.

Duralumin BELMAG pump for VAZ 2114

LOW ANTIFREEZE

On the 2114 VAZ, the stove does not heat well if there is a shortage of coolant in the heating system. It is necessary to check the antifreeze level here. Depending on the temperature and season outside, it can be different: in summer the coolant should be at least below the “max” mark, in winter – two fingers above the maximum scale. In any case, you just need to add antifreeze.

Topping up antifreeze on a VAZ 2114

BURNT CYLINDER HEAD GASKET

Signs of a burnt cylinder head:

• The coolant has a new unpleasant smell of gasoline and car exhaust.
• The engine oil began to smell like coolant.
• A thick white burnt sound suddenly poured out of the car muffler.

smoke, the cylinder head gasket needs to be replaced.

BROKEN MOTOR

The motor of the stove itself may also fail, or simply before. But before you start the procedure, it’s worth replacing it to make sure that the temperature switch is in working order and the operating mode of the ignition relay is in good condition. To do this you need to free yourself from the pipes. Pull out the old faulty stove and put a new one in its place. Make sure it works again and fill it with coolant.

The answer to a popular question from car owners about how to improve a VAZ with a 2114 stove is the prevention of breakdowns.

Elimination of electrical circuit defects

If, when you turn on the heating by turning the handle, the stove does not work and you cannot hear the electric motor running, then first of all the fuse located in the control circuit is checked.

To check its integrity, you need to look into the engine compartment. There is a mounting block in the niche under the windshield. The fuse responsible for the operation of the fan motor is marked F7 and has a rating of 20A.

By replacing it with a similar one, the performance of the engine is checked. If this procedure is not successful, you need to check the contact relay. When the on-board network is turned on, it experiences significant loads. To reduce them, contact relays are used. The same ones are installed in the heater circuit. When the relay is faulty, the fan does not turn on every time, especially when the engine is cold.

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The reason may be problems with the contact block. The contact connectors are located in the engine compartment and are exposed to high humidity. Therefore, they are intensively oxidized, this leads to a lack of contact, so the fan may stop working.

The electrical circuit can be restored by disconnecting the terminals and then cleaning the terminals. But if there is severe corrosion, the contacts break, and then the contact group needs to be replaced.

The next part that can affect the operation of the furnace is the switch. The fan speed setting is set by a switch. The internal mechanism includes contacts that wear out over time. Repair is usually impractical; it is easier to replace the switch with a new one.

The resistor included in the control circuit regulates low and medium speeds. If, when moving the handle to the extreme right position, the engine runs at maximum speed, then the reason is in the resistor and it must be replaced.

The last element of the electrical circuit is the electric motor itself with an impeller that supplies air. It refuses to work if the insulating layer of varnish burns through and an interturn short circuit occurs. Previously we used motor rewinding services. But today it is practically not used, so you will have to purchase a new motor.