What are the reasons why the car heater is not hot?
Although winter is over now, but to be prepared, we still need to understand the reasons for the lack of car heater in winter. Next time You won’t be at a loss if you encounter it.
1. Water tank scale
The water temperature in the water tank is always maintained at a high temperature, which will combine the hydrocarbons in the water with calcium, magnesium and other ions to form water-insoluble scale. Calcium carbonate and magnesium carbonate, commonly known as water alkali. Then as the water continues to evaporate and concentrate, the alkali content of the water continues to increase and reaches saturation, forming scale.
2. Engine coolant
The engine coolant takes away the heat generated by the engine, and at the same time supplies the heat to the interior of the car through the heater water tank to form warm air. If the engine coolant If the cooling is missing, it will cause problems with warm air heating. First, we can check whether the cooling is missing.
3. Lack of antifreeze
Especially in some cars, the heater will be hot when the gas pedal is opened, and the heater will not be hot when the gas pedal is not opened. This is the first problem. The thing to consider is lack of antifreeze, a very simple problem.
However, many car owners never check it themselves and drive directly to the repair shop. If they meet a kind-hearted repairman, they will refill the antifreeze to solve the problem. However, once they encounter a deceptive repairman, The lathe will try to trick you into changing it, which will cost you a lot of money.
4. The engine temperature is too low
When the engine temperature is too low, the warm air in the car is not hot enough. It can speed up the vehicle, make the engine run faster, and increase engine temperature.
5. The thermostat is always open or the thermostat is opened too early, causing the cooling system to undergo a large cycle prematurely, while the outside temperature is very low, especially when the car is running, the cold wind quickly kills the antifreeze. With liquid cooling, the engine water temperature will not rise, and the heater air will not heat up.