What should I do if the air conditioner shell rings when the air conditioner is heated

The solution to the sound of the air conditioner housing when the air conditioner is heated:

1. It is recommended to increase the indoor wind speed.

2.15 days to clean the filter in time;

3. Take off the air filter in winter, because of the limited service life, it is best to use it in summer for sterilization, (the winter effect is anti-static), the air conditioning heating shell has a sound because of thermal expansion and contraction, this solution is to let the service personnel apply 5# lubricating oil to the door, which can reduce this situation.

4. It is recommended to adjust the temperature at 26 degrees when heating.