Solution for MaxxFan RV Roof Vent That Only Works on Lowest Speed Setting

Question:

Our Max Air fan only runs on low speed out of four able. Just changed circuit board [from E Trailer ] still with same results. Any help would be great. Thank you

asked by: Denny L

Expert Reply:

Hey Denny, it sounds like the power source might be weak. If the fan is ran off of a trailer battery check to make sure the battery has a decent charge and also make sure the wiring to the battery is making a good connection as well. Otherwise it's time for a replacement motor which for that you'd need the part # MA10-20968.

expert reply by: Jameson C