OEM replacement printed circuit control board for select MaxxFan Plus and MaxxFan Deluxe powered-lift roof vent fans with reversible airflow.
The Maxxair 10C21275K is an OEM replacement printed circuit board for select MaxxFan RV roof vent fans. This board is used on compatible powered-lift models with reversible fan operation, helping manage remote-control response, fan speed, airflow direction, and power to the lid open/close motor.
This replacement board is commonly listed for select MaxxFan Plus and MaxxFan Deluxe roof vent models manufactured after 2010. Because Maxxair uses several similar PC board part numbers, the full fan model number and original circuit board number should be confirmed before ordering.
Replacement printed circuit control board for compatible MaxxFan roof vent units
Sends power to the lid motor on compatible powered open/close MaxxFan models
Supports compatible intake and exhaust fan operation when matched to the correct unit
Receives signals from compatible Maxxair wireless remote controls
This is a model-specific electronic replacement part and is not universal for all Maxxair roof vent fans. It is commonly used with compatible MaxxFan Plus and MaxxFan Deluxe powered-lift, reversible-fan models manufactured after 2010. Before ordering, confirm your complete fan model number and compare the part number on your existing circuit board.
The 10C21275K is commonly listed as the replacement PCB for MaxxFan powered-lift roof vents with reversible fan operation. Replacement Part Number: • 10C21275K Replaces Earlier Board Numbers: • 10A21275K • 10B21275K Common MaxxFan Plus Fits: • 00-04500K • 00-04700K • 00-04800K • 00-04900K Common MaxxFan Deluxe Fits: • 00-07000K • 00-07500K • 00-08500K • 00-08700K • 00-08900K Fan must be manufactured after 2010 for this style board to fit.
In The Box: • One Maxxair 10C21275K replacement printed circuit control board Not Included: • Complete roof vent fan assembly • Vent lid or rain cover • Fan motor or fan blade • Lift motor or operator mechanism • Rain sensor • Keypad, wall control, or handheld remote • Interior garnish or screen • FanMate vent cover hardware This is a replacement PC board only. Existing compatible fan components are reused unless they are being replaced separately.
Replacement Overview: 1. Confirm Model: Verify your complete MaxxFan model number and the part number printed on the original circuit board. 2. Confirm Date Range: Make sure your compatible MaxxFan was manufactured after 2010 before using this board. 3. Disconnect Power: Turn off 12V power to the roof vent fan before servicing electrical components. 4. Document Wiring: Take photos of all existing connections before removing the old board. 5. Inspect Related Parts: Check the fan motor, lift motor, lid movement, remote, keypad, rain sensor, wiring, fuse, and 12V power supply before assuming the board is the only failed component. 6. Remove Old Board: Carefully disconnect wiring and remove the failed or damaged circuit board. 7. Install New Board: Mount the replacement board and reconnect wiring exactly as required for your compatible fan model. 8. Test Operation: Verify fan speeds, lid open/close function, airflow direction, remote response, and any automatic features before travel.
This replacement PC board is best suited for RV owners or service technicians repairing a compatible MaxxFan Plus or MaxxFan Deluxe powered-lift roof vent with reversible airflow after confirming the original board number and fan model match this replacement part.
Before placing your order, verify your complete MaxxFan model number, confirm the fan was manufactured after 2010, and compare the part number printed on your existing circuit board. This part is a replacement PC board only and does not include the roof vent fan, lid, fan motor, lift motor, rain sensor, keypad, remote, screen, garnish, or FanMate cover hardware.