How to Disable Rain Sensor Feature on MaxxAir MaxxFan RV Vent MA00-04500K

Question:

what would cause vent cover to open and close continuosly after turning fan on? vent fan is coverd with MaxxAir 2 cover and fan has rain sensor

asked by: Nino D

Expert Reply:

It sounds like you have the MaxxAir MaxxFan RV Vent with rain sensor # MA00-04500K.

This sensor consists of a small circuit board, which is shown in the linked photo. This could have failed, perhaps from damage from an impact from a tree branch or something like that.

You can try turning this feature off. On the vent's keypad there is a button that allows you to disable the rain sensor feature. This is noted by an arrow in the second photo.

expert reply by: Adam R