Repair of the stove vaz 2109 do it yourself high panel

To ensure a comfortable temperature, a heater is installed in the car. The controller maintains the desired microclimate in the car's interior in the mode specified by the owner. The maximum deviation in this case should not be more than 2 degrees Celsius. Departure from these values ​​indicates a malfunction.

How to repair the stove on a VAZ-2109 with your own hands, this article tells.

The air supplied to the passenger compartment is heated by a radiator built into the cooling system. It is then pumped in by a fan through the deflectors. A special regulator located on the panel is responsible for the intensity of the heat supply.

And in the more modern models of the "nine" (where a high dashboard is installed), and in the early (where it is low), ventilation is of the same type: supply and exhaust. Air enters through special holes installed in the area of ​​the windshield by gravity or forcibly when the heater fan is running.

He leaves the salon through the cracks arranged in the doors. There are valves that allow air to be released outside, but prevent it from entering from the outside.

The heater is built into the engine cooling system and consists of:

• a heater radiator installed near the main one;
• faucet;
• pump;
• fan.

The stove itself is installed in the cabin under the dashboard. Once in the radiator, the air heats up and is then supplied to the passenger compartment by an electric fan.

If this element needs to be removed, then this must be done from the side of the engine compartment.

The heater tap is connected to two pairs of pipes from the cooling system. Directly in its body there is a valve that allows antifreeze to pass through. Its lever is driven by a pull rod located in the cabin.

The pump circulates the coolant in the radiator.

Opening (full) of the damper and the valve occurs if the regulator is moved to the right until it stops. In parallel, the fan blows air into the radiator, and the pump activates the movement of the coolant.

The upper regulator is responsible for the operation of the lower sleeves, which supply heat to the feet of the people sitting in the cabin, which sets the damper in motion.

A normally operating stove allows you to maintain a comfortable 20 heat in the cabin at 20 degrees of frost.

As a rule, a heater failure occurs due to the fact that its electric motor ceases to function. There are several reasons for this:

• combustion of the fuse insert;
• break in the wires of the electrical circuit responsible for its operation;
• switch failure.

In the first case, the defective protective device must be replaced. If the new fuse also blows, then you need to find out why this is happening. Most often this happens if there is damage to the insulation of the wires or their separation from the connecting terminals. The electrical circuit is tested with a multimeter, and if a defect is found, it is eliminated.

The regulator, in turn, usually does not work properly when its contacts burn out. A broken pusher also provokes a similar result. The serviceability of this element is determined by measuring the voltage on its lateral contacts. Its presence when switching the toggle switch indicates operability. Otherwise, it is required to replace this unit.

In addition, the motor itself may fail. The reasons are more common as follows:

• breakage of the wires of the armature windings;
• hanging of brushes;
• collector oxidation.

If the elimination of these causes did not lead to the correction of the problem, then the engine changes completely.

Sometimes a malfunction occurs due to a break in the wires supplying the mounting block or due to a burnout of the current-carrying track in it.

And, finally, the destruction of the resistor circuit may also occur - it is checked and the defective element is replaced with a serviceable one.

The procedure is performed after draining the antifreeze, in this order:

• from the side of the passenger compartment, 2 tubes leading to the faucet are disconnected (you will need to loosen the fixing clamps);
• the other two are turned off in the engine compartment;
• unscrew the nuts on the faucet itself (from the bottom) and remove it (from the front);
• the thrust is dismantled (you will need to disconnect the holder);
• the protective case of the gearshift lever is removed;
• unscrew the screw in the transmission tunnel and remove the floor covering;
• the ventilation sleeve is disconnected from the heater;
• the wires supplying them are removed from the resistor and motor of the stove;
• to the right of the heater there are nuts securing it - they are unscrewed and the device itself is dismantled together with the control panel.

A faulty heater should be sent for repair to a service, since attempts to repair it on your own will most likely lead to undesirable consequences.

Sometimes, when the stove is working at full strength, slightly warm air comes from the deflectors. In this situation, adjustment of the dampers will be required.

This is easy to do: you need to arm yourself with pliers and patience. With the help of the named tool, they pull the cable located near the gas pedal drive. Sliding it to the right will open the flap and hot air will enter the passenger compartment.

In addition, the cold in the car often signals a radiator breakdown. There is no need to repair this unit - it is replaced with a new one. You should act in this way:

• the car is parked on a level surface;
• the faucet of the stove is opened and all the liquid located there is drained from the cooling system;
• dismantle the dashboard.

The last point is performed in this order

• the negative terminal is disconnected from the battery;
• remove the drive cable and the damper rod;
• remove all the handles that control the heater and fan;
• pull out the protective pad;
• disconnect all pads of wires leading to the panel;
• all the devices installed there are dismantled, as well as the steering wheel and the ignition switch;
• Unscrew the screws holding the panel in place and remove it.

Thus, access to the radiator is opened. To remove it, you will need to disconnect the hoses from it and unscrew the fixing screws.

If the problem is only a dirty radiator, then it will need to be cleaned. If a leak is detected, the entire assembly is replaced with a new one.

There is a special offer on our website. You can get a free consultation of our corporate lawyer by simply asking your question in the form below.

Stove for heating the car interior VAZ 2109

In the passenger compartment of a VAZ 2109 car, the desired temperature is maintained by a built-in stove or heater. The automatic system allows you to maintain air heating, the temperature fluctuations of which do not exceed two degrees Celsius from the set one.
The air is heated by a radiator built into the system. It passes through the vents of the device and is distributed inside the vehicle interior.
These flows are controlled by the position of the handle. The comfort in the cabin for the driver and passengers depends on maintaining the desired temperature.
This indicates that the device must always work reliably, and how the VAZ 2109 stove is replaced can be found in this article. The price of work done by oneself will be significantly lower than the service station specialists will do.

Interior ventilation - supply and exhaust. Special openings located in the windshield linings serve for the flow of air through them, which is supplied spontaneously or forcibly by the stove fan.
Air escapes through the gaps between the panels inside the doors, or holes in the ends.Valves built into the holes allow air to pass outside and stop it from getting inside.
This improves the thermal insulation in the passenger compartment. The engine cooling system includes a stove, a heater radiator, which is located parallel to the main radiator, a tap, a pump, an electric fan.

Heating system of a car VAZ 2109

• The stove is fixed in the cabin under the dashboard to the bolts with four nuts. The bolts are welded to the air inlet box.
  The seal between the air ducts and the stove is made with gaskets. The stove consists of two plastic covers, left and right, connected around the perimeter with brackets.
  A special harness is laid in the grooves of the casings for sealing.
• A radiator is installed in the heater casings, it is fixed to the right casing and sealed with a polyurethane gasket. The device includes:

1. two rows of tubes;
2. cooling plates;
3. two plastic tanks.

The air is heated in the radiator and through a system of air ducts fixed from the bottom to the dashboard, is directed to the passenger compartment:

Air for passengers and blowing side windows enters through the side - left and right, and two central nozzles of the car's stove. Their bodies are equipped with a damper with a polyurethane foam seal.
The intensity of the air flow is changed by closing or opening the damper with a lever, and by turning the nozzle with guides and blades, the direction of air movement can be changed.
The stove provides at an ambient temperature of -20 ° C, at the maximum heating mode, the following temperatures:

• + 25 ° С - in the leg area.
• + 20 ° С - in the passenger compartment of a VAZ 2109 car.

Many are faced with a problem when the VAZ 2109 stove does not heat well. In this case, the interior remains cold, and the driver and passengers experience discomfort.
One of the reasons for the breakdown of the device may be an inoperative electric motor at low and high speeds. In this case, there could be:

• Fuse has blown. - The reasons for its failure and the subsequent replacement of the part are being investigated.
• Damage to wires or breakage at the connection points. - The electrical circuit is checked and breakouts are eliminated
• The heating switch does not work. - This can occur due to burning of some contacts or sticking of the pusher. The voltage at the side terminals is checked when the switch is switched. The switch is changed if necessary.
• Problems with the heater engine due to broken connecting wires, hanging brushes, open circuit of the armature winding, oxidation or contamination of the armature collector. - The collector is cleaned, the wire connection is restored, the hanging of the brushes is eliminated. If the reasons do not eliminate the breakdown, the electric motor of the stove changes.
• The mounting block has stopped working due to an open circuit or a burned-out current-carrying track. - The chain is checked, the rush and track malfunction is eliminated.
• The resistor circuit has broken. - The chain is checked

A video on the Internet will tell you how you can modify the heater, but sometimes it is enough just to repair the stove on a VAZ 2109.
To do this, you need to remove it:

• The tightening of the clamps is loosened, and two hoses are disconnected from the valve nozzles. The work is done from inside the passenger compartment under the dashboard.
• In the engine compartment, the clamps are loosened and the hoses are disconnected from the valve connections.
• The nuts holding the stove tap are unscrewed.
• The crane is removed from the front panel.
• The crane arm holder is removed.
• The rod is disconnected from the lever of the crane.
• Removable cover that protects the gear lever located on the floor tunnel.
• The floor cladding is removed.
• Unscrew the screw securing the floor cladding at the rear of the tunnel.
• The cladding is removed.

Tip: When removing the cladding, it must be removed from the floor tunnel.

• The internal ventilation duct is disconnected and removed from the stove body.
• Wires are disconnected from the heater motor and resistor.
• On the right side of the stove, the fastening nuts are unscrewed, and the heater is removed simultaneously with the control panel.

Removing the stove on a VAZ 2109 car