Why doesn't the hot air come out after cleaning the heater tank?

1, the warm air is not hot. Generally speaking, the filter screen of the air conditioner is blocked and the wind is not strong enough. If the air intake of the car is obviously small, replace the air conditioning filter first.

2. The water temperature in the car rises slowly, and the water temperature is still below 90 degrees after long-term operation, indicating that the thermostat is opened too early. The thermostat is broken.

The water thermometer of the car comes up quickly, and the wind is strong, but the wind is not hot. If it is a new car, the fault of the air outlet temperature sensor should be considered. If it is an old car, the small water tank is probably blocked. Use a water gun several times when washing. Never mind the repairman, life lies in tossing. If it still doesn't work, you can only change the small water tank.