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Troubleshooting MaxxAir MaxxFan MA00-04500K Having Power But Fan Not Turning On

Question:

when checking the power to the fan i find the power line is hot but when trying to turn the fan on it will not power on. i have tried the remote as well and nothing.

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Expert Reply:

Since your MaxAir MaxxFan Roof Vent # MA00-04500K has power to it but the fan is not working there is one of two possible issues.

One is that the rain sensor is detecting moisture keeping the fan from working. Cleaning the sensor with Isopropyl Rubbing Alcohol should dry up the moisture, but if not you will need to replace the rain sensor with the # MA34FR.

If you have identified that the issue is not the rain sensor then the circuit board itself has gone bad and will need to be replaced with the # MA10A21275K.

I included videos of the products mentioned for you to take a look at.

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Samuel C

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