Replacement Circuit Board for MaxxFan 8900N RV Fan

Question

Question:

Hello. I have a maxx fan 8900N The circuit board number is 10-21275NZ Do you have one? It for the 1/2 bath on 2021 Entegra Amthem 44W

asked by: Ric K

0

Expert Reply:

Based on the part number you mentioned the correct replacement circuit board is the part # MA10A21275K.

expert reply by: Jameson C

0

Rob

1/25/2025

Hi, I have been looking for the 10-21275NZ board as well for a late model Entegra. These fans have an RV-C network canbus interface and can be controlled from any panel on the network. Does the replacement part you specified have the RV-C interface? The only place I have been able to find the Maxxair 8900 with RV-C is at Artek but they only sell the entire fan. https://artek.energy/products/maxxairfan8900n

Fred D.

11/4/2025

Do you supply a wiring diagram to show how to replace the 10B21275N with a 10B21275K? in my Winnebago Journey 22N, the firefly controls go through the boards two 4-pin ports to control down-stream appliances. Also, dip switches on the N board are set to provide firefly control.

Jameson C.

11/4/2025

@FredD We don't have wiring diagrams for the # MA10A21275K as it usually just plugs into existing connectors. Also does your MA10A21275K have dip switches??

Alan

6/24/2026

@JamesonC The 21275K does not replace the 21275N

Jameson C.

6/24/2026

@Alan Why do you say that? We are under impression the letter change is just that it was updated.

See All (5) Replies to Fred D. ∨

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