Recommended Replacement to Replace 10C21275 Circuit Board

Updated 09/26/2024 | Published 09/22/2024

Question:

Factory determined that this is the board we need “10c21275” but the plugs on the replacement board are different from what is shown on your listing See pictures of my boards plugs and compare to plugs on replacement how do I adapt ? The new board plugs look to be like phone plugs or data plugs.

asked by: Chris

Expert Reply:

Chris, from what I understand the Replacement Printed Circuit Board # MA10A21275K is still the correct circuit board replacement for your 10C21275 board, despite the looks, and will work with the MaxxFan Plus: 00-04500K, 00-04700K, 00-04800K, and 00-04900K and MaxxFan Deluxe: 00-0700K, 00-07500K, 00-08500K, 00-08700K, and 00-08900K. The install appears to just be a plug and play.

The new circuit board has been updated with better resistors to better regulate both voltage and amperage and it also includes a coating for corrosion resistance from moisture on the board itself.

expert reply by: Bryce D

Chris

9/25/2024

The picture on your site shows different plugs on the board than mine has (see pics) Factory says I need 10b21275N

Bryce D.

9/25/2024

@Chris Gotcha. That's a different board, which we do not carry unfortunately.

Chris

9/26/2024

Thank you What unit would you recommend as a replacement without tearing into the roof opening. Our coach uses the vegatouch system as a controller to automatically open & close the lid when the 3 speed fan is activated from the touchpad If has a rain shield but no rain sensor

Bryce D.

9/26/2024

@Chris Hey Chris, so we don't have anything that will work with the Vega Touch system. So for a replacement you'd need a complete replacement. I recommend going with the Dometic FanTastic Roof Vent w/ 12V Fan and Remote # FV807350. This fan has a 12v reversible fan, 13 speed settings, a rain sensor, and includes the mounting hardware.