This genuine MaxxAir printed circuit board (P.C. Board) is a key replacement part for the MaxxFan Deluxe series roof vents. It suspends the electronics that manage functions such as the fan speeds (10-speed motor), intake/exhaust mode, auto (thermostat) control, remote control integration and other motorised functions. Ideal when your vent’s control electronics fail, behave erratically (e.g., fan stuck on one speed, no lid operation, remote not responding) or the board has been damaged.

Compatible Models:

• MaxxFan 4500KI / 4540KI models 

• MaxxFan 4000KI models 

• MaxxFan 7000KI / 7500KI models

Frequently Asked Question

Q: What faults does this board fix?
If your vent fan won’t operate properly (stuck speed, no response), lid motor won’t open/close, remote fails, or intake/exhaust mode doesn’t switch, the board is likely suspect.

Q: Will it fit my vent?
It will fit if you own a MaxxFan model 4500KI / 4540KI or 4000KI or 7000KI / 7500KI (KI-series)

Q: What warranty applies?
This part is listed with a 1-year warranty.