What if the mini warm wind in Chang 'an is always a breeze?

1, insufficient coolant. Due to the damage of engine water circulation system parts, joint leakage or cylinder gasket, the cooling liquid is insufficient, so that only a small amount of cooling liquid circulates in the heating pipe or not at all, resulting in insufficient heating of heating air. Solution: under the condition of ensuring the normal water circulation system of the engine, it is enough to supplement the coolant.

2. Thermostat. In the previous maintenance, because the water temperature was high, the thermostat was not removed, or the thermostat was damaged in the normally open position, so the water circulation of the engine was always in a big cycle. Because of the low external temperature and good heat dissipation, it was difficult to raise the water temperature of the engine, so the warm air was not hot enough. Solution: Add or replace a new thermostat.

3. Warm air water tank and heat exchanger. Engine coolant enters the heater box through the heat exchanger, and the heat exchanger is blocked, resulting in the heater not being hot enough. Some models have exhaust ports near the heater box, and incomplete exhaust will also cause the heater to be not hot enough. Solution: First, exhaust the air. If the temperature difference between the two heating pipes is large, you can directly dredge the heating water tank or heat exchanger with a water gun or an air gun.