Is the Replacement Printed Circuit Board for MaxxAir part MA10A21275K the Same as MA10C21275K
Updated 02/22/2026 | Published 02/12/2026
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Question:
This product is listed as having the part : MA10A21275K. However, in the description a few lines down, its implied that this is, in fact, part : MA10C21275K. Specifically from you listing: 10C21275K Replacement Printed Circuit Board for MaxxAir Powered Lift RV Roof Vents - Reversible fan Replaces 10A21275K and 10B21275K. Im asking for clarity as I need to make sure Im getting the most recent, lithium-prooffoot replacement to fix the problem with voltage regulation we and other Maxx-Fan Deluxe owners have experienced. Thank you.
asked by: Jody H
Expert Reply:
Hello, Jody.
Yes, the Replacement Printed Circuit Board part # MA10A21275K is the same as part MA10C21275K. The circuit board has changed part numbers over the years so I can completely understand wanting to confirm for fitment.
What camper are you replacing this on?
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Product Page this Question was Asked From
Replacement Printed Circuit Board for MaxxAir Powered Lift RV Roof Vents w/ Reversible Fan
- Accessories and Parts
- RV Vents and Fans
- Roof Vent
- Circuit Board
- MAXXAIR
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Michael
2/22/2026
Yes, the boards are basically the same with the letter designations being various revisions/upgrades to the board. Do yourself a favor and also install the DROK DC-DC Stabilizer, 9V-36V to 12V converter. This will stabilize the voltage going to the fan board which is what is causing all these issues. It is only $16 and resolved my issue along with a new board. $16 sure beats another $170 a year or less down the road.