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Correct Replacement Circuit Board For MaxxFan Deluxe 7500K  

Updated 04/23/2025 | Published 03/04/2022



Question:

I wanted to confirm this motherboard is compatible with LiFePO4 voltages. I have a maxxair fan deluxe 00-07500K, just a few years back the motherboards would trigger a voltage too high warning when LiFePO4 banks are at full charge 14.2-14.4v. Well recently my motherboard burned up from the moisture of a humid night in Georgia. Ive read that the newer motherboards do not have this issue with LiFePO4 batteries and I wanted to confirm that this is true with the one you guys are stocking. I was specifically told by Maxxair support that the part # I need is 10C21275K

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Expert Reply:

That is correct, the Replacement Printed Circuit Board for MaxxAir Powered Lift RV Roof Vents w/ Reversible Fan # MA10A21275K is the correct replacement for your MaxxFan Deluxe Roof Vent w/ 12v Fan, Thermostat, and Remote # MA00-07500K, and will work just fine with your LiFePO4 batteries.

expert reply by:
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Bryce D
Jane F. profile picture

Jane F.

4/22/2025

Hi! I need the same replacement part you mention above in Joey E. question. I a voltage regulator helpful to add to this or is it built in? Thanks! Jane

Bryce D. profile picture

Bryce D.

4/23/2025

@JaneF Hey Jane, the Replacement Printed Circuit Board # MA10A21275K does have a voltage regulator built in so an additional one is not needed!
Janef profile picture

Janef

4/23/2025

@BryceD AWESOME!!
Bryce D. profile picture

Bryce D.

4/23/2025

@Janef Indeed it is!

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