Why does the car heater not work? + Heater repair solution
According to the online economy report, quoting from the Young Journalist Club, the car heating system is part of its cooling system, and problems with the cooling system can lead to problems with the heating system. If The car heater does not workthe problem can be due to only one of four reasons: cooling system problems, heating core problems, faulty water pump, or heating blower fan failure.
Problems with the car’s heating system do not prevent you from getting into the car on cold days, but still, you need to fix it so that you can drive comfortably on cold winter days. While some causes may be simple and inexpensive to fix (eg, thermostat, worn hoses, leaks, etc.), other causes, such as water pump problems, may be more complicated.
In this report, we will explain how the heating system works in the vehicle and we will tell you why The car heater does not work Finally, we recommend the necessary repairs based on the cause to get your heating system working again.
How does the car heating system work?: To identify the main reasons why the car heating does not work, you need to know how the heating system works. In any vehicle, heat is generated through the cooling system. When the engine starts, coolant flows around the engine to cool it down. Then the heated coolant passes through the radiator to lose temperature and cool down.
A portion of the heated coolant can be circulated through the heater core to raise its temperature, thus blowing hot air into the vehicle; You can control the amount of heat entering the car by using different keys on the car dashboard.
Why The car heater does not work?: If your vehicle has a problem with one of the four cooling system components, the heater core, heater vents, or blower fan, the heater will not work.
Problem with the cooling system: If the coolant level is low, the thermostat is faulty, the cooling system hoses are faulty, the radiator is leaking, or the water pump is faulty, the cooling system can fail.
The thermostat acts as a valve to prevent coolant from flowing into the radiator when the engine is not warm enough. When the engine reaches the maximum allowable temperature, the thermostat opens and allows the coolant to pass through the radiator and cool down.
If the vehicle’s thermostat is stuck, the coolant will always remain cold and therefore, the heating system will not blow hot air and the car’s heater will not work.
For a preliminary check, note that if the car engine temperature is high, but there is no hot air heater, the amount of water inside the cooling system may be low. The car heater is basically a radiator that is placed in the way of the engine’s hot water outlet, and through a blower, the air outside the car is blown into it, and as a result, the heat removed from the engine’s hot water reaches the room. In this way, it is clear that if there is not enough water in the cooling system, the heater will not work properly.