2. Insufficient antifreeze and cooling system antifreeze are the most common reasons why warm air is not hot. When the coolant is insufficient, the coolant will first circulate in the engine. At this time, there is no water in the warm air circulation pipeline, and most of the warm air tank is gas. At this time, the air conditioning warm air is naturally not hot. After adding antifreeze, the warm air tank is filled with boiling coolant, and the warm air will naturally heat up.
Extended data:
Precautions for heating air:
1, the car can't turn on the warm air for a long time.
If the warm air in the car is turned on for a long time, many people will feel breathless. Because the windows in the car are closed in winter, the closed space is bound to cause poor air circulation.
2, warm air temperature should not be too high.
During driving, if the warm air temperature is too high, the owner is prone to drowsiness, and an accident is very likely to occur. Driving on the highway, because of the long time, boredom and drowsiness, is more serious.
3, warm air can repeatedly break the window and fog.
In winter, due to the large temperature difference between inside and outside the car, the window is prone to fog. As many car owners know, if you press the window defogging button, the cold air will automatically blow on the windshield, and the fog in the window can be eliminated.
If the warm air doesn't work normally, it must be sent for maintenance.
The warm air is small, and sometimes it is useless to turn it up to the maximum. If this really happens, it is nothing more than a problem with air conditioning or a blocked water pipe, which is very difficult to maintain. Whatever the reason, you must go to the 4S shop for maintenance in time.
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