The stove does not heat up in the car: several main reasons and their solutions

 

It is already quite cold outside the window. And most likely, every morning for you begins with a short run from a warm house to an equally warm car. You jump into the interior of your car, confidently turn on the stove and wait for it to get warm, but it doesn't happen. On the other hand, it is so cold that the shivers hit. Is this familiar to you?

 

If so, catch the 5 main reasons for the malfunction of the stove in the car and recommendations for their elimination.

 

• Not enough antifreeze
• Thermostat defect
• Clogged radiator
• Malfunctions of the electrical system
• Defective fan
• Tips for prevention

 

 

 

Not enough antifreeze .

 

We recommend checking the level of coolant (antifreeze). If it is low or absent, then this is exactly the reason for the malfunction of your stove. This happens mostly in cars of previous generations, where there are no coolant level sensors. The stove does not get enough heated liquid and it practically does not heat up. The fan is blowing, and the air is cold.
To eliminate this problem, add antifreeze to the required level, first making sure that the radiators or pipes are not leaking. If nothing has changed after adding antifreeze, air has probably entered the system. Bad antifreeze and pour again.

 

Thermostat defect .

 

The thermostat regulates the temperature of the antifreeze and can also cause the stove to stop working. After starting the engine, the coolant begins to move in a small circle, in which the engine and the stove participate. This is how a quick warm-up occurs. When the coolant has warmed up sufficiently, the thermostat opens a large circuit and the heated liquid moves into the main radiator, which is located under the hood. This is necessary to avoid engine overheating. However, it happens that the thermostat fails and immediately starts the coolant for a long cycle. In this case, the interior of the car will not warm up normally.
To eliminate this problem, there is only one way out: replacing the thermostat.

 

 

Clogged radiator .

 

A dirty radiator blocks the air supply, due to which the stove heats up less. Try to reach the radiator to assess its temperature. If you feel that it is cold, then most likely it is clogged with debris and needs cleaning. Another sign of the presence of dirt in the radiator can be a musty smell in the interior of your car.
There are several reasons for pollution. Most often, due to improper mixing of antifreeze, which causes the appearance of sediment on thin pipes, and pouring water, which causes rusting of metals and the formation of scale on the walls.

To eliminate this problem, you need to either flush and clean the radiator, or completely replace it.

 

Malfunctions of the electrical system .

 

The reason for the malfunction of the stove can also lie in problems with electronics. Check all the controls on the control panel, as well as the ignition, relays and other components that are responsible for powering the furnace system.
To solve this problem, you need to contact a specialist. Do not forget that self-diagnosis, like self-treatment, can be dangerous for the life and health of your car.

 

 

 

Defective fan .

If the fan does not turn or does not turn at full power, this contributes to the poor performance of the stove. The appearance of extraneous noise or creaking during warm-up may be a sign of bearing wear. And the reason for the failure of the fan itself is a blown fuse.
This problem can be solved by replacing the fan, its components or, if necessary, the fuse.

 

 

Tips for prevention :

 

• Regularly clean the external surfaces of the radiators.
• Use high-quality antifreeze.
• Do not pour in antifreeze that has been used.
• Flush the cooling system every time you change the antifreeze.
• Periodically inspect the elements of the cooling system for leaks.
• Do not neglect timely maintenance and contact specialists.

 

There are many possible variants of malfunctions and each of them has its own history. Therefore, it is best to solve them at a specialized service.