What's wrong with BYD's car not blowing warm air?

1, because of the engine cooling system, the engine water temperature does not come up, and the warm air is not hot.

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.

Solution: 1 Replace thermostat. 2. Clean or replace the air conditioner filter.