Reasons why the roof fan cannot be started

1. Check whether the roof fan motor is out of phase and the fan power is turned on. Turn on the power and adjust the motor wiring.

2. Check whether the wiring of the power box is correct and whether the fuse is burnt. Rewire or replace fuse.

3. Check whether the roof fan motor is burned out. Replace fan motor.

4. Check whether the fan motor bearing is stuck. Replacing the Mada bearing is based on the operating standard for the replacement of the roof fan motor bearing.

5. Check whether the fan bearing is stuck and the impeller is stuck. Replace the fan bearing Replace the fan impeller.

6. Check whether the roof fan belt is broken. Replace fan belt.

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