1, the coolant is low, or the coolant flowing through the warm air water tank is low because the water pump is lost.
2. The thermo
1, the coolant is low, or the coolant flowing through the warm air water tank is low because the water pump is lost.
2. The thermostat is often turned on or turned on too early, resulting in low water temperature and insufficient warm air.
3, too much air in the cooling liquid, forming air resistance, affecting the circulation.
4. The warm air water tank is blocked, which makes the cooling liquid flowing inside less and slower, and the heat energy transferred to the air is insufficient.
5, air conditioning water valve failure, can't open or a small amount of open, less coolant can be used to heat the air.
6. Control system and signal failure: various sensor failures, such as: inside temperature sensor, evaporator temperature sensor, tuyere temperature sensor, refrigerant pressure sensor, outside temperature sensor, multi-function sensor, sunlight sensor, etc. And the AAC control module itself.