How to change the heater switch on a VAZ 2114

VAZ 2114: what to do when the stove heats up but doesn’t shine

Usually, a heating device, if it is not a fireplace, requires high-quality heat release, and not pleasing the eye with lighting delights. But for a car heater, the backlight is not much less important than the heat it emits. Its front part, together with the switch, being a component of the car’s dashboard, should facilitate clear orientation of the driver and be accessible to his gaze at any time of the day, especially in the evening or at night. That is, the lighting of the stove carries a purely functional load, which, however, does not in the least prevent it from being beautiful. This is exactly what many drivers are striving for today, replacing standard backlight bulbs with LED strips.

The backlight of the VAZ 2114 stove does not work - why does this happen?

Since the “native” lighting of the stove on this car uses incandescent light bulbs, which do not have a long service life, most often their burnout leads to the disappearance of the lighting effect on this device. In addition, possible causes of this trouble may include:

oxidation of contacts in connectors;
violation of the integrity of electrical wiring;
blown fuses, which disables the entire lighting system on the dashboard;
damage on the common contact board.

Why the instrument panel does not work

Disassembled dashboard

The first thing you need to figure out is why the instrument panel on the VAZ 2114 does not work. If the backlight goes out, there may be several reasons for this:

The incandescent lamps burned out, the LED lighting groups stopped working;
The connectors have oxidized;
The electrical wiring is faulty, there are defects in the circuit;
The fuse box has stopped working;
Damage appeared on the common contact board;
The dimensions system is damaged;
There is no minus on the body (weight).

How to replace the stove light and its regulator

If you are replacing burnt-out stove light bulbs with the same ones or LED ones, you will need the following tools and materials:

crosshead screwdriver;
pliers;
knife;
new incandescent light bulbs or their LED equivalents.

The backlight replacement process proceeds as follows:

The first step is to disconnect the terminals through which the supply voltage is supplied.
Then you will have to disconnect the dashboard from the dashboard to gain access to the inside of the stove heating regulator. This is the most difficult stage of replacing the backlight. To do this, you need to remove 9 screws.

How to remake the lighting of a VAZ 2114 stove using LED strip

Many drivers, not content with simply replacing light bulbs with similar ones or even LED ones, decide to tune the heater lighting using strips with LEDs.

To do this, they use 2 strips with white LEDs 10 cm and 5 cm long and 2 pieces of strips with red and blue LEDs, 5 cm each. In addition to these, for such a modification of the stove lighting you will also need:

crosshead screwdriver;
knife;
pliers;
soldering iron;
textolite plate;
self-tapping screws;
glue;
insulating tape or shrink tubes.

The tuning process of altering the backlight using LED strips goes like this:

The on-board network is disconnected from the battery.
The instrument part of the dashboard is dismantled to gain access to the stove lighting bulbs.
The textolite plate is cut to length in accordance with the internal size of the stove scale.
Pieces of LED strip are glued onto the textolite plastic prepared in this way. White LEDs are arranged as the top section of the strip, and strips with blue and red LEDs form the bottom row, located right next to each other.
A textolite plate with LEDs is attached to the inside of the dashboard using self-tapping screws.
The wires from the light bulb sockets are unsoldered and soldered to the contacts on the tapes: in the stove regulator, where a 5-centimeter piece of white LED strip is placed, and on the stove scale, where 3 multi-colored pieces are placed. In this case, be sure to observe the polarity (white wire is positive, and black wire is negative). The contacts are carefully insulated with electrical tape or heat-shrinkable tubes.
A light filter film (most often Oracal 8300–073) is attached to the back of the stove scale, which dims the excessive glare of the LEDs.

Such a transformation will not only make the stove regulator more visible, but will also introduce a new bright element into the overall ambience of the car interior.

Experience of car enthusiasts

I finally decided to change the light bulbs in the heater lights, which were not working for me when I bought the car. Before this, I scoured the Internet and found out that there are two ways to replace these light bulbs. The first way is to disassemble the entire torpedo, etc. and so on. The second way is to get to them through the dial of the stove controls. I used the second method. Tools: Phillips screwdriver, small pliers, flashlight for illuminating the lamp replacement process. First, the red and blue socket is removed, the rods under this socket are pushed apart with a screwdriver, and the old light bulb is carefully pulled out with pliers. Then he goes across the road to the nearest auto store, shows the salesman the old light bulb, and buys the same new one. A new light bulb is inserted using the same method. All! The backlight works! Whoever needs it, use this method, everything works. The main thing is that your hands do not shake and do not drop the lamp with tweezers or pliers))))

If, after turning it on, it seems to you that the light is pleasant to the eye, but you want a little more contrast, you can unscrew the plate with the ribbons and mount it again, but not directly to the body, but through small bushings that will help bring the LEDs closer to the scale. As a result, the lighting will become less diffuse.

In order not to remove the entire dashboard, you can limit yourself to removing only the translucent scale on the stove. The method is rough, but effective. To do this, use a thin and wide screwdriver to pry the scale on the right (you can’t do it on the left because of the protrusions there!) and at the same time pull the middle of the scale toward you with your fingers so that it bends slightly in an arc. After this, the light bulb will be visible behind the plastic guides, which must be moved apart. Then, using tweezers with non-slip ends, remove the light bulb from the socket and replace it with a new one. When returning the scale to its place, you need to insert it from left to right, again slightly bending it in an arc.

How to replace the VAZ-2114 heater switch

The stove on VAZ-2114 cars may not work for several reasons. Do not rush to blame the switch (faucet) for everything, since there are other possible culprits for problems. Once you are sure that the problem is with the switch, you can check and replace it. The work is not difficult, but painstaking. If desired and possible, do it yourself.

Causes of stove problems

Switching to different positions does not give any result, which indicates a malfunction in the heating system. The heater may not respond for the following reasons.

Fuse. Everything looks quite simple, because you need to replace the fuse with a new one. But its failure is associated with a short circuit in the system. If the cause of the short circuit is not found, the fuses will continue to burn. Therefore, before replacing a fuse, it is better to check the entire system. The required fuse is marked F7. If they burn out often, it is better to send the car to a good service to a competent electrician.
Contact. If there is faulty wiring in the mounting block, this also leads to breakdown of the stove. Try moving the bundle of wires carefully. If at some point the heater started working, then you have found the reason. All that remains is to change the wire.
Relay. The ignition relay often causes the stove to malfunction. In this case, you need to change the element located on the center console.
The heater on the VAZ-2114 does not work in the second position of the heater or when the first mode is turned on. If the system does not work in these positions, it will take a long time for the interior to warm up. The fact is that the heating system on the VAZ-2114 is designed in a certain way. In the first and second positions, the electrical impulse passes through the resistor and goes to the fan. And the third position receives electricity directly. The resistor itself is located near the gas pedal. It cannot be repaired, so you need to immediately replace it with a new one.

Causes, malfunctions of the furnace engine

The VAZ 2114 oven engine does not work for the following reasons:

It is not difficult to replace, but the main problem lies in the electrical circuit, i.e., a short circuit appears in the circuit. The first step in troubleshooting this problem is to find the source of the short circuit. It is important to know that an F-7 fuse with a voltage of 30 A is connected to the thermoblock. In addition to the heating system, it is responsible for the operation of the cigarette lighter, heated mirrors, glove box glare, and an electric motor for washing headlights. Therefore, if the fuse breaks, these devices will also fail.

Problems with the contact in the mounting block.

This disease is quite common in many machines and is caused by poor contact or oxidation of the contact.

The heating system only turns on when the car is warm. Accordingly, if this problem occurs, it is necessary to check the ignition relay and, if necessary, replace it.

The heater turns on only at speed 3.

The fan is turned on at speeds 1 and 2 through an additional resistor, and at speed 3 the current flows directly to the fan. Therefore, this problem indicates a failure of the additional resistor.

Heater switch does not work.

In this case, the problem is with the electrical circuit or the fuse. To check its operation and switching speed, you can use additional tools. a lamp for 12 V and two wires soldered to it. Actions are performed in a certain sequence:

Checking the switch (faucet)

If the stove switch does not respond during the work carried out, then the problem is in the faucet. Replacement is not always necessary. Before changing the device, you should check its functionality:

remove the center console;
prepare a lamp and a couple of wires;
turn on the car engine;
short the minus to ground;
plus is closed to a three-phase resistor;
if the lamp lights up with such contact, then everything is fine with the switch;
if the lamp does not light, then the reason is an open circuit or a blown fuse.

Important! Another possible cause of a switch malfunction is a broken motor. Check its condition and replace if necessary.

Instructions for replacing the switch

It cannot be said that replacing switches installed on VAZ-2114 stoves is a difficult task. The procedure is painstaking and in many ways inconvenient.

Important! Experienced craftsmen advise making the repair a little more complicated, but making the work comfortable and convenient. To do this, you need to remove the dashboard and completely drain the coolant. This will allow you to change the faucet and old coolant in one go.

But it is not necessary to remove and drain. Use your own discretion.

To work you will need:

wrench 10;
rags or old rags;
cooling liquid;
worm clamp (its diameter will be 15–23 mm);
screwdriver (phillips);
capacity of at least 5 liters;
new switch (faucet).

When everything is prepared, you can begin work. The replacement will take you several hours, but will save a decent amount on the services of specialists from a service station.

Replacement begins with removing the entire center panel or just the side wall. It is located on the front passenger side. Shoot what is most convenient for you.
Throw rags and rags at the feet of the passenger seat that absorb moisture well. Place rags under the faucet to prevent spilled coolant from leaving marks on the floor. It is also better to remove the rugs immediately.
Lift the hood, remove the heater hose clamps (outlet and inlet). The pipes are removed from the faucet. Drain all coolant from the system into a prepared empty container.
Return to the interior of the VAZ-2114 car. Use a Phillips screwdriver to unscrew the clamps that hold the heater pipes to the faucet. Disconnect them. Place the container there, because the liquid will flow from there. Drain all coolant.
Using pliers, you need to remove the bracket from the faucet lever rod. It is removed through the hole in the lever.
We need to go back to the engine compartment. There, using a 10mm wrench, remove a couple of fastenings of the heater faucet to the shield.
Run to the salon, where you can completely remove the switch (faucet).

Reassembly

Once the old switch is removed, you need to begin reassembling the entire assembly. This stage is no less important.

Make sure that the new faucet (switch) is in good condition and has no defects or damage. Buy a quality item right away so you don’t have to do the same work again later.
Replace the switch. From the engine compartment side, the faucet is fixed with a pair of nuts. It will be better if you lubricate them with anti-corrosion lubricant before installing the nuts. They will last longer.
Open the tap completely, coming from the interior side, and then tighten the bracket.
Already from the engine side, and then from the passenger compartment, put on the pipes and secure them properly. Make sure the fastening is secure.
If you decided to drain the coolant during the dismantling stage, you can now refill it. Or immediately change all the antifreeze for prevention. If only part of the liquid comes out, then you need to unscrew the pipe on the throttle assembly and add the missing amount of coolant.
Return the pipe to its place, start the engine and warm it up well. Tighten all clamps after heating, then turn on the stove.

Important! After replacement, air may accumulate inside the heater radiator. This is indicated by cold air coming out of the heater after replacing the switch. Remove the air and the repair is complete.

All you have to do is return the panel to its place and check the operation as you go. If everything is done correctly and other potential causes of stove failure are eliminated, then the heating equipment will begin to supply hot air as before.

Do you think the heating system of the VAZ-2114 is really that bad or does it all depend on the specific car? Share your impressions, leave comments and ask your questions. We will be happy to answer them.

Source: remam.ru

To watch online, click on the video ⤵

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The stove blows cold

Dampers and temperature controllers rarely fail. Therefore, if the stove blows cold all the time, most likely the gear motor has failed. This element is shown in the photo below.

How is the heating system of the VAZ-2114 repaired in this case? It doesn't matter whether it's an injector or a carburetor. Due to the complex design, the entire gearmotor is changed. To do this, you need to completely disassemble the “jabot” of the front panel. Next, using a Phillips screwdriver, unscrew the three screws on the stove block, pull out the wires and remove the old gear motor. The new one is connected in the same way. Check how the VAZ-2114 interior heating system works. The air should change its temperature when the lever on the block moves from cold to hot mode and vice versa.

When is replacement needed?

In what cases is it generally necessary to replace the heater radiator in a VAZ 2114 car:

Very often, replacing a VAZ 2114 heater is accompanied by endless swearing and a lot of wasted time for the owners of this car. It is not difficult to change the stove radiator with your own hands, but getting to it is quite difficult. So, what you need to stock up on:

Knowledge (for interest, at least read the Murzilka)
A set of all kinds of screwdrivers, preferably short ones
You can study such material as replacing the heater stove VAZ 2114 video
And the most important thing is to have patience, which you will need in immeasurable quantities in this matter.

Everyone changes it differently, some completely remove the panel, some perform such an operation as replacing the heater without removing the panel of a VAZ 2114, some drain the coolant, and some simply put plugs in the pipes (of course, it would be better to drain so that do not dirty the interior or take a shower with antifreeze or antifreeze) and this is not so difficult if you have a hose from the mixer at hand. In this case, we will consider a method of replacing the heater without removing the panel.

Characteristics and device

The main purpose of this system is to maintain optimal temperature in the cabin during the winter season. In addition to comfort, the stove is needed to prevent the windows, especially the windshield, from sweating. To prevent condensation from forming on it, special nozzles are provided at the top of the panel. However, first things first. Below is a diagram of the interior heating system:

It is the same for all models of the Lada Samara family, including the VAZ-2114. So, the system structure includes the following elements (circuit decoding):

Water deflector shield.
Windshield heating nozzle assembled with air ducts.
Side nozzle designed for heating and ventilation of the interior.
Central deflector.
The heater is assembled with an electric motor.
Interior ventilation nozzle.
Stove tap seal.
Rear heater pipe of VAZ-2114.
Stove supply pipe.

Where is the heating system located? The VAZ-2114 (including the injector) is equipped with it in the cabin. The stove is located in the front panel, which is also called the “torpedo”. Depending on the modification, the heating and ventilation system of the VAZ-2114 is interconnected with an air conditioner and evaporator, or goes without it.

The design also includes the stove faucet and the heat exchanger itself. The latter works together with a gearmotor.

Work order

Before starting work, you should generously anoint your hands with some cream (they will be easier to wash later, and cuts are possible in this process) and you can begin this labor-intensive process. So:

Drain the coolant (if your coolant is sealed, then the cap of the expansion tank should be closed; after you wrap the hose into the engine instead of the plug, open the cap and the coolant will carefully flow into the container prepared in advance).
Then you need to remove the glove compartment and side panels; in this case, you need to unscrew all the mounting screws that you see.
Also, do not forget to unscrew the fastenings to the floor - there are two screws on the sides, on the left and right sides of the panel. Then we unscrew the mounting screws that secure the cables (on the left and right sides), these screws on the driver’s side also hold the radiator cap, there should be three of them.
It is necessary to make sure again and check whether all the screws and bolts are loosened (do not forget to unscrew the two screws located closer to the passenger door and the one installed in the upper right corner of the panel, it is located near the buttons and is closed with a plug). Gently pull the panel towards you. We place some kind of block or maybe a plastic bottle into the gap formed between the panel and the frame on the passenger side.

Removing the side panel on a VAZ 2114

We unscrew the two clamps from the radiator, do not forget to place some container under the pipes so as not to flood the interior with coolant. There is still a sufficient amount of coolant left in the system, so do not rush to remove the container. In order to completely drain the coolant, you can remove and put on the pipes. You can see this process in more detail in the photo.

So, we drained all the liquid, pulled off the clamps, the radiator comes out a little and rests against the bottom of the panel. In this case, one cannot cope, one needs to lift the panel, and the other at the same time pulls out the radiator, the same algorithm applies during assembly. So:

We take a new heater radiator, and everything is assembled in the reverse order as the instructions show. You also need to understand that you should not save on the heater radiator, and buy the model whose price will make you laugh; believe me, it will not last long and this complex procedure will have to be repeated again. It’s better to buy a high-quality heater radiator once and not have any problems with it for many years.

The most difficult thing in this matter is to remove the radiator, and after that you can blow it with compressed air to clean, solder, or even change it. Also, during the installation process, pay attention to the pipes; if they need to be replaced, do it immediately, while everything is open and accessible.

Replacing the heater fan on a VAZ 2114

Replacing the electric heater motor on a VAZ 2114

If the heater fan on your car does not work, then this is a disaster, regardless of the time of year. Car windows fog up even from the breath of the driver, and especially from the breath of passengers who celebrated something. As a rule, opaque glass is an immediate threat to safety; in short, it is necessary to replace the heater fan on a VAZ 2114 car or replace the heater electric motor on a VAZ 2114; in any case, both operations are carried out in the same way.

Execution order

Replacing the VAZ 2114 heater electric motor begins with disconnecting the negative terminal of the wire from the corresponding terminal on the battery. So:

Under the instrument panel in the cabin, we disconnect the connector of the “positive” wire that goes to the electric motor and, unscrewing the front nut securing the heater to the body, remove the “ground” terminal of the electric motor from the stud.

Replacing the heater fan on a VAZ 2114

Then, to carry out such an operation as replacing the VAZ 2114 heater fan, use a Phillips screwdriver to unscrew the five screws securing the air supply grilles.
Remove the right and left air intake grilles.
Using a Phillips screwdriver, unscrew the four fastening screws of the protective casing and remove the protective casing itself.
Then you need to use the same Phillips screwdriver to unscrew the two screws securing the fan to the heater housing.
We pull the electric motor wires through the rubber seal. We remove the heater fan from the air intake box.
Remove the casing seal. Then, using a flat-head screwdriver, pry up the latches and separate the casing into two parts.
Having released the two mounting brackets, remove the cover from the fan motor and pull out the electric motor along with the wheel.

Attention: To avoid imbalance, do not remove the fan wheel from the motor shaft. This concludes the replacement of the VAZ 2114 heater motor.

We install and assemble the heater fan in reverse order. The seal should be glued with universal glue.

Diagnosis of heating system faults

Heating system malfunctions are accompanied by the following symptoms:

the fan does not work;
cold air enters the cabin;
the damper does not work;
there is a coolant leak;
the stove begins to make uncharacteristic sounds (whistles, hums, gurgles);
Steam or smoke appears from the heater ducts.

Why the stove does not work or does not heat the air

If the stove fails, it either does not work at all, or it works but does not heat the air. In the first case, first check the fan wiring, starting with fuse F7. If the fuse is blown, replace it. Then they check the relay, which may not turn on the first time or only when the engine is warm. In this case, the relay is replaced with a new one.

Then the serviceability of the electric motor is assessed. To do this, power is directly supplied to its contacts from the battery. If the electric motor starts to operate at maximum speed, then it is in good condition. Otherwise, it will need to be repaired or replaced.

The intensity of the air flow is adjusted using a resistor having two spirals with resistances of 0.82 Ohm and 0.23 Ohm. In the first mode, the current flows through both spirals, in the second - only through a spiral with a resistance of 0.23 Ohms, in the third - bypassing the spirals, that is, without resistance at all. If the resistor is faulty, the fan will only operate in the third mode at maximum speed (handle in the extreme right position). The problem is solved by replacing the resistor, which is located on the driver's side above the accelerator pedal.

If the resistor is faulty, the heater fan will only be able to operate at maximum speed.

If cold air enters the cabin, this may be due to:

Airlock. It could have formed when replacing the coolant, when the system was depressurized, or because there was insufficient amount of coolant in the system. To remove the plug, remove the heater radiator pipe, use a watering can to add antifreeze to the maximum and put the hose back in place. After starting the engine, coolant under pressure will displace the remaining air from the system.
Stove tap jammed. This happens if the tap was not initially opened all the way, and during operation, oxide and scale formed on the inner surface, preventing the normal circulation of the liquid. You can try to open the tap using pliers or immediately replace it with a new one.
The stove radiator is clogged. When using low-quality coolant, the radiator honeycombs may become clogged. The problem is solved by flushing or replacing the heat exchanger. The feasibility of washing is determined by the scale of contamination.
Installation of a low-quality radiator. In a defective product, the honeycomb may be incorrectly soldered. The radiator should be replaced.
Low pressure in the cooling system. If heat transfer increases at higher speeds, the pump needs to be replaced.
Low coolant level. It is necessary to check the level and add antifreeze if necessary.
Damage to the heater fan impeller. The impeller is carefully inspected and replaced if mechanical damage is detected.
Cabin filter dirty. If it is heavily polluted, the power of the electric motor will not be enough to pump warm air into the cabin. The filter is replaced with a new one.
Damage to the cylinder head gasket. If the cylinder head gasket is blown, white smoke will come out of the exhaust pipe. The problem is solved by replacing the gasket and dismantling the cylinder head.

Heater dampers don't work

The distribution of air flows throughout the cabin is carried out by dampers, which, in turn, are controlled using cables. When these cables fail, problems arise with directing the air flow to the windshield or to the foot area. In addition, the damper that blocks the flow of air from the street begins to work incorrectly. In this case, adjustment of the damper drives is required.

Such situations can arise even on a new car. Slightly warm air begins to flow from the lower, upper and side deflectors, and hot air begins to flow from the center console. This is due to the poor build quality. There are gaps between the joints of the air ducts and the dampers, which leads to warm air entering only from the center console and heating the panel from the inside.

The drive cable is always taut. Therefore, over time it bends, breaks off or stretches. In this case, it is necessary to adjust the damper drive, which is performed in the following order:

In the stove, we look for a bracket with which the cable sheath is held on the heater body.
A galvanized metal lever located on the left side is pulled back. This position corresponds to the maximum opening of the damper.
The length of the cable is tightened and adjusted. The long lever on the lever block in the extreme right position should open the damper completely.
After adjustment, the cable is securely fixed.

Video: stove repair using the example of a VAZ 2114

Why is antifreeze leaking from the stove?

A coolant leak in the heating system can occur from:

stove radiator;
stove tap;
stove pipes.

If a coolant leak occurs from the radiator, it is usually replaced with a new one. Repairs to restore tightness are usually complex and labor-intensive. In addition, if the radiator has been in use for a long time, its tubes become clogged with deposits and dirt, and, as a result, heat transfer decreases.

Replacing the heater switch on a VAZ 2114

Replacing the heater switch

It should be immediately noted that replacing the VAZ 2114 heater switch is not a difficult job, but very inconvenient and painstaking . For greater convenience, you can also remove the dashboard and completely drain the coolant, but you can do everything without this. In order to replace the stove tap we will need:

Key for 10
Rags
Coolant
Worm clamp with a diameter of 16-23 mm
New heater tap
Empty containers with a volume of 5 liters or more
Crosshead screwdriver.

How to replace the heater valve on a VAZ 2114

The first step is to unscrew the side wall on the passenger side of the central instrument panel or remove the panel completely - at your discretion. So:

We place rags under the passenger’s feet and under the faucet to absorb spilled drops of liquid.
Open the hood and unscrew the clamps of the heater outlet and inlet hoses, remove the pipes from the faucet and drain the liquid into an empty container.
Then, inside the car, using a Phillips screwdriver, unscrew the fastening clamps securing the heater pipes to the faucet and disconnect them. Place a container to drain the coolant.
Using pliers, remove the bracket from the faucet lever rod and remove it from the lever hole.
Then we return to the engine compartment again and, using a 10mm wrench, unscrew the 2 valve fasteners of the heater to the panel.
And again we return to the salon and pull out the faucet.

Install the new faucet in reverse order:

We install a new faucet in its place.
We secure it from the engine compartment with two nuts (it is recommended to pre-lubricate them with anticorrosive.
Fully open the faucet from the interior side and tighten the bracket.
Then we put the pipes on the engine compartment side and the interior side and secure them well.
If you have drained it completely, then fill it with coolant, or unscrew the pipe on the throttle assembly and pour liquid into the tube until it is full.
We install the pipe in place, start the car, warm it up, tighten the clamps on the tap pipes and turn on the heater.

If cold air is blowing from the heater, then there is most likely air left in the heater radiator. To fix this problem, you will need to remove the air. This completes the procedure for replacing the heater tap, screw the instrument panel into place and you can ride.

Source: masteravaza.ru

Replacing the Heating Fan

How to replace the stove engine on a VAZ 2114 excites many car owners. Replacing the VAZ 2114 stove heater involves the following steps:

First, you need to disconnect all the bolts in the space under the hood that secure the plastic cover.
Remove the pad for ease of use.
Remove the rubber band from the hood.
Remove the cover protecting the oven motor.

So, get to the fan, then:

Remove the two bolts securing the sides of the engine.
Then go to the interior and under the driver's side panel, you need to find the positive wire plug and unfasten it.
Then locate the negative wire attached to the nut and unfasten it. These wires can be inserted into the hole in the machine body through a rubber band.
We take out the heater motor, turn it at a certain angle and take it out from the right side.

If it is necessary to replace the VAZ 2114 heating fan, a new model is purchased, and the entire system is assembled in the same way, but in reverse order.

Replacing the fan on a VAZ 2114 is possible for every car enthusiast; it’s worth setting aside a little time for this.

How much does a VAZ 2114 stove engine cost, buying it in a separate form or assembled with a body. Therefore, the price for the engine of heating system is about 500 rubles, the price indicator for the assembly with the housing will be about 1000 rubles.

Why doesn't the stove work on the VAZ 2114? This is a question many car owners ask themselves. And how to make the VAZ 2114 warm?

Unfortunately, the heating system of the domestic automobile industry still leaves much to be desired. This issue is especially relevant in winter. After all, being cold is not only unpleasant, but harmful, even dangerous to health. And here we are not only talking about the driver’s hypothermia, everything is clear about this. Glasses with a faulty heating system quickly freeze and become covered with frost and ice. Visibility on the road for the driver in such conditions is negligible.

To find out why the stove on a VAZ 2114 does not work, you first need to understand how the stove on a VAZ 2114 works.

Heating in the interior of the VAZ 2114 is arranged according to the classic principle of the line of Samara cars.

Heater cables VAZ 2114

Winter has come and you, anticipating a comfortable and warm ride in your car, start its engine and wait for it to warm up. And now, the moment to turn on the stove has come! You redirect the airflow towards you, and what happens? Absolutely nothing! It's all because of the VAZ 2114 stove cables.

The side and central deflectors give out a portion of barely warm air, and blowing the glass does not melt the ice as quickly as we would like. Many car owners put up with such injustice, the quirks of the domestic automobile industry. But you and I are not one of them and are going to radically move the situation forward!

How does it work

The principle of operation of the system is quite simple. It is based on the transfer of heat from a liquid. So, the heater radiator is connected to the main terminals of the engine cooling system. Inside the heat exchanger there is antifreeze or antifreeze. So, when the engine heats up, hot liquid flows in a “large” circle to the heater radiator. When the ACS (control unit) is turned on, the heater motor is activated. Warm air begins to move through the nozzles. The direction can be different - on the windshield, side, in the center of the cabin. One or more deflectors are activated, depending on the position of the stove lever.

That is, heat exchange occurs - hot antifreeze is cooled not only in the main radiator (which stands in front of the engine and is shown in the photo below), but also in the heat exchanger of the heating system.

Of course, the engine temperature drops significantly. Therefore, in severe frosts, motorists close the honeycomb cavity of the main radiator so that the engine is not very cold. The most optimal operating mode is 80-90 degrees Celsius. When you turn on the stove, this figure immediately drops by 10-15 percent. However, let’s not dwell on the principle of operation and consider the main malfunctions of the VAZ-2114 heating system.

The principle of operation of the heater cables on the VAZ 2114

The operation of a car's heating system is to transfer and redirect the heat that is released as a result of engine operation. Heat is removed by the cooling system and supplied, among other things, to the heater radiator. Then, when the switch is turned on (turned on), the heating system starts a motor that blows out hot air and passes it through the car panel deflectors. Air redirection to a particular area is carried out directly by the driver by switching the airflow positions.

When clicked, the picture enlarges

Most cases of stove malfunctions are associated with just one reason and this is the VAZ 2114 stove cable. The fact is that over time the tension of the cable weakens. This occurs as a result of its constant tension, weakening when moving the lever for adjusting the heating mode (cold and hot). There are also cases when the cable completely flies off the stove tap. As a result, the stove valve does not open completely, thereby you do not receive significant portions of hot air from the heating system.

What to do? To change or not to change? Here are the most common questions from car enthusiasts. Let's answer this: before replacing anything, you should find the cause of the malfunction and try to eliminate it.

What does the heating system consist of?

Faucet.
Radiator.
Fan.
A special resistor that controls the power of the fan motor.
Dampers through which air is supplied to the cabin.
Optimal power position switch.

When the system is working properly, coolant enters the heater radiator through the heater tap. The driver controls the temperature of the air entering the cabin independently when he opens and closes this same tap. Heat is created by the coolant that reaches the radiator. When the engine is hot, the coolant temperature rises to 95 degrees!

The Samar stove has three operating modes. The fan speed depends on them and is controlled by the driver independently via a position switch. Depending on the position of the tap we already know, cold or warm air blows into the cabin. The air flow is directed by dampers. The oven damper is adjusted manually.

Diagnostics of the operation of the VAZ 2114 stove cables

In order to inspect the valve cable of the VAZ 2114 stove, you need to dismantle the side panel trim on the driver's side (to the right of the gas pedal). Further details:

Start and warm up the car engine thoroughly.
Unscrew the three side trim mounting bolts.
Turn your gaze towards the heater valve.
Check to see if the cable has come loose from the faucet.
Move the heater lever on the instrument panel to maximum heating mode.
Pull the cable towards you and hold it in this position
Check if hot air is coming from the deflectors.

Now that the source of the problem has been identified. It is required to fix, give constant tension and thereby ensure good operation and correct throughput.

One of the options for increasing the tension is a method in which a part (0.5-1 centimeter) of the cable is bent at the point of direct connection to the heater lever. To do this you will need:

Remove the second trim, only from the passenger seat side.
Take pliers and pull the cable towards you (at this moment, the temperature switch should be at maximum heating mode).
Bend the additional amount of cable formed (its amount is selected experimentally, and in each specific case it differs and, as a rule, amounts to 0.5 centimeters).
We hook it up to the temperature switch of the stove.

Attention! To avoid damage, perform all tension-related actions carefully and do not use excessive force. If you overdo it with tension, you can damage the system and the functionality of the heating system.

Removing the dashboard

Panel disassembly diagram

Therefore, now we’ll figure out how to disassemble the instrument panel on a VAZ 2114:

Unscrew the three screws, remove the trim and the protrusion from below. It comes out of your car's body bracket;
Now remove five more screws located on the right console trim;
Remove the screen; Disconnect the negative terminal from the battery;
Disconnect the wiring harness connector from the cigarette lighter;
Remove the handle from the lever;
The fasteners for the electric fan of the heating system, that is, the stove, also have to be removed;
Unscrew the steering wheel block bracket fixing bolts;
Remove LEDs, lamp sockets and decorative inserts on the panel;
Unscrew the hydraulic corrector illumination lamp. For this you will need a key for 21;
Now all that remains is to remove the screws at the top and bottom.

Replacing heater cables on a VAZ 2114

Sometimes situations occur when, for one reason or another, the product becomes bent or even breaks off. Such cases require removing the device and replacing it with a new one. Recommendations for analysis are as follows:

The metal clips that hold the cable in place must be disconnected.
One end of the cable is connected to the tap, the other side to the lever for adjusting the air temperature in the cabin. Any sequence of disconnection can be followed. But it will be most convenient to first disconnect the end from the stove tap, unfasten all the clips and, last of all, disconnect it from the lever.
Now the product should be carefully removed from the case.
When reinstalling the new part, start by attaching it to the tap.

There are a lot of different models on the auto goods market that differ in length, thickness, various types, and shapes of both ends. In order not to make a mistake when purchasing a new product, we advise you to take it with you to the store. Usually cables are sold in one set of several pieces at once.

So we learned how to change the heater cables on a VAZ 2114. The most important thing when carrying out work is not to rush, to understand the principle of operation of the hot and cold air supply mechanism. We wish you warm heaters!)

Source: ladaservice.info