1, air conditioning filter plug. Warm air is not too hot. First, check the air conditioning filter to see if it is dirty or blocked.
2. The frozen liquid is gone. If there is no antifreeze, it will also affect the warm air. Because the warm air uses the heat of antifreeze, the hot antifreeze enters the warm air tank for heating, and the wind is blown out through the warm air tank.
3. The heater water tank is blocked. If the warm air tank is blocked, antifreeze can't enter the warm air tank, or if it enters very little, the warm air tank won't be hot, and then the wind blown out must not be hot.
The relay is out of order. If the water temperature meets the requirements and the radiator fan of the car still doesn't work, then there may be something wrong with the relay of the fan. If the relay fails, the radiator fan of the car will not work.
5. There is something wrong with the temperature control switch.