What is the solution for the abnormal noise from the Passat blower?
1 Answers
If the abnormal noise changes with the air volume, it is likely that there is a foreign object inside the blower. Removing the foreign object should resolve the issue. If this does not work, the blower needs to be disassembled to check for specific causes. Abnormal noise caused by airflow resonance in the duct. The inspection method is to turn off the air conditioning compressor, turn on the blower, and then adjust the air volume and direction. Foreign objects in the air duct or motor failure. Turn off the air conditioning compressor and adjust the air volume and direction. If the abnormal noise changes or weakens accordingly, it indicates the presence of foreign objects in the air duct.