Why Would Rain Sensors on Three MaxxFan Roof Vents Stop Working at Same Time

Question:

We have a 2018 Montana Model 3731FL 5th wheel. There are 3 Maxxair vents with rain sensors in the unit. All 3 rain sensors quit working at the same time. Would this be the circuit board or the sensors. Looked for info in all out Montana stuff for these vents and we have no info.

asked by: Debbie C

Expert Reply:

Since all three vents had their rain sensors stop working at same time and they all have separate circuit boards I wouldn't anticipate the issue being the circuit boards or the sensors as that would be way too much of a coincidence. I would think that somehow something got on the rain sensors last time the lids were all open and now they aren't working properly. That would make the most sense to me. I'd recommend getting on top of the RV with the vents open and see if there's anything on the sensors that would prevent them from working.

expert reply by: Jameson C