What's the matter with the cold weather and the loud noise of Buick hot air?

The noise of Buick's hot air in cold weather is caused by insufficient lubrication or cracking of fan bearings, and it may also be caused by the hardening and brittleness of plastic parts caused by low temperature. The last reason is that the dynamic balance iron block of the fan blade is not adjusted well or falls off, which is the same as the principle that the wheel needs dynamic balance.

Performance of Buick

In winter, the reason for the abnormal sound of Yinglang car when it turns on the warm air may be that there is a foreign body on the heater, which leads to the abnormal sound when the blades rotate. It is also possible that the fan bearing lacks lubrication or has cracks. At the same time, it is also possible that plastic parts become hard and brittle due to low temperature, which leads to vibration.

We don't need to deal with the abnormal sound caused by the hardening of plastic parts due to temperature problems. We only need to turn it on and heat it for ten minutes, so that the abnormal sound will be eliminated naturally after the temperature of plastic parts rises. Go to a regular repair shop to find a master to adjust the dynamic balance of the fan blades. If the dynamic balance weight falls off, it should be reinstalled in time.