Troubleshooting MaxxAir Fan that Doesn't Work but Lid Does

Question:

Ceiling vent fan not operating. Vent opens but fan does not come on. I press vent open and it opens, press fan speed 1-2-3-4 and nothing happens. Hit “Fan off” button, vent closes. Fan not working. Just started living in unit full time. Is there a fan reset button?

asked by: Bill C

Expert Reply:

It sounds like your MaxxAir MaxxFan Trailer Roof Vent has a powered lift like # MA00-04000K but has a connection issue. It is getting power for the lid to open and close but not for the fan function. I recommend testing your wiring using a circuit tester like # PTW2993 to make sure you are getting power to your fan switch and if so if power is getting to your new motor.

If you test the motor with a battery and it works, then you know you have switches or wiring that is in need of repair. There is circuitry in this unit so a rain storm may have damaged the unit.

If you need a replacement, you may want to consider the MaxxFan Deluxe Roof Vent w/ 12V Fan, Thermostat, and Remote - Powered Lift - 10 Speed - Smoke # MA00-07500K which has a built in rain shield or the Fan-Tastic Vent Roof Vent w/ 12V Fan and Thermostat - Powered Lift # FV803350 which has a rain sensor to close the vent when it senses rain.

expert reply by: Jameson C