Question:
the fan will operate by the switch so i open the vent manually. I can close the vent with the switch at which time the fan comes and the vent closes . what do I need to fix it?
asked by: Terry S
Expert Reply:
It does sound like a circuit board issue on your MaxxAir roof vent 4900K which would require the part # MA10A21275K.
Replacement Printed Circuit Board for MaxxAir Powered Lift RV Roof Vents w/ Reversible Fan
Replacement Printed Circuit Board for MaxxAir Powered Lift RV Roof Vents w/ Exhaust Only Fan
