Kia k2 heater is not hot, and the fan is always on.

The reason why the automobile heater is not hot: it may be caused by the engine cooling system; It may also be caused by poor operation of the heating control mechanism. When maintaining, first determine the cause, and then carry out the corresponding maintenance. The method of discrimination is simple: look at the temperatures of the two intake pipes of the small warm air tank, and if both pipes are hot enough, it means that it is a problem with the air volume control mechanism; On the other hand, if both water pipes are cold, or one is hot and the other is cold, there is something wrong with the cooling system.

Possible problems in the cooling system are:

1, the thermostat is always on or the thermostat is turned on too early, which makes the cooling system carry out a big cycle prematurely, and the outside temperature is very low, especially when the car is driving, the cold air quickly cools the antifreeze, the engine water temperature does not rise, and the warm air does not heat up.

2. The water pump impeller is damaged or lost, so that the flow through the warm air small water tank is not enough, and the heat can't come up.

3. There is air resistance in the engine cooling system, which leads to poor circulation of the cooling system, resulting in high water temperature and lukewarm air. If there is gas in the cooling system all the time, it is likely that the cylinder pad is damaged and the gas leaks into the cooling system; If the inlet pipe of the small heating tank is very hot and the outlet pipe is very cold, this situation should be that the small heating tank is blocked and should be replaced.