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Troubleshooting Bumping And Bouncing Noises When Opening And Closing A MaxxFan Plus Roof Vent  

Question:

Our fan opens and closes but bumps and bounces several times before completely open and closing.

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Expert Reply:

If your hearing a lot of bumping and bouncing while your MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat # MA00-04000K is opening and closing then the gears are most likely stripped and the lift operator will need to be replaced with part # MA10-20281K-3CF.

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Kevin C

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