Is MaxxAir Roof Vent Replacement Printed Circuit Board the Upgraded Version

Updated 05/16/2024 | Published 05/15/2024

Question:

I have a MAXXAIR manual lift fan that started acting up when I connected a solar charger to it. I experience the following: de-energize the entire coach circuits with a master off switch. Wait 5 minutes. Re-energize the coach and fan l.e.d. light is now off. Start the fan and runs for 15 seconds, then l.e.d. light starts blinking and audible alarm beeps for 5 seconds. L.e.d. light switches to on all the time and no fan function. I have read and viewed many complaints about the circuit board was not voltage regulated and Maxxair was correcting the problem with a new design to fix. Are the circuit boards you receive the new corrected version that can stand 14+ volts coming into the circuit board?

asked by: Bob

Underside of MaxxAir Manual Lift RV Roof Vents
(click to enlarge)

Expert Reply:

Hey Bob, thanks for reaching out!

The Replacement Printed Circuit Board # MA10A21276K is the upgraded version with the better resistors. This will fix the issue you're seeing with your MaxxAir roof vent.

expert reply by: Jon G