Question: Violent vibration, noise increases



1. Check the hanging is strong enough

2. The connecting pieces of the fixed screws are loose

3. Volute standing fixed screws are loose

4. Motor fixed screws are loose

5. Impeller installation is not in place

6. Impeller is damaged and balance piece is lost


1. Hanging cooker hood firmly

2. Tighten screws

3. Tighten screws

4. Tighten screws

5. Install in place

6. Change impeller

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