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Replacement Circuit Board For MaxxAir MaxxFan 4700K


Is the 10a21275k the same as 10b21275k? And will it work on my 4700k? TIA


Expert Reply:

The two parts are the same, and the correct replacement circuit board for your model 4700K MaxxAir fan is indeed the following;

- Replacement Printed Circuit Board for MaxxAir Powered Lift RV Roof Vents w/ Reversible Fan # MA10A21275K

expert reply by:
Kyle S

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