Which Replacement MaxxAir Circuit Board for Part # 4751k_Board_v1.4

Question

Question:

All, I guess I ordered the wrong replacement board for my maxxair vent. I am trying to figure out the correct one, I have a 4751k_Board_v1.4 circuit board that is the only nomenclature I can find in regards to a model number. It does have the rain sensor and lift motor. I am not sure if this is the right one: https://www.etrailer.com/Accessories-and-Parts/MAXXAIR/MA10A04751KS.html or https://www.etrailer.com/Accessories-and-Parts/MAXXAIR/MA39FR.html I have no clue if the fan is reversible or not.

asked by: James R

0

Expert Reply:

Hey James, thanks for all of the info you listed. Based on that the correct replacement circuit board is the part # MA10A04751KS.

expert reply by: Jameson C

0

Jameson C.

1/5/2026

Hey James, how did the replacement circuit board work out for your Maxxair vent? Knowing if it solved the issue could help others trying to match the right board for their setup.

Answer 1

Hey Amy. To replace your Maxxfan motherboard 10A21275KZ you'll want the Replacement Printed Circuit Board item #MA10A21275K. The only exception would be if your fan is the MaxxFan Plus 4-Speed Roof Vent item #MA00-04751KSX in which case…

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Answer 2

Yes, the MaxxAir MaxxFan Plus Roof Vent #MA00-04751KSX that you referenced would easily replace the MaxxFan you currently have installed in your 2015 Montana 36RL as this fits the same size RV roof opening.

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Answer 3

Knowing the actual model number would be best so as to confirm you are ordering the correct part but, if you have the the MA00-04751KSX then we have the Replacement Printed Circuit Board for MaxxAir Powered Lift RV Roof Vents, #MA39FR.

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Answer 4

Hi Chris; I'm sorry to say the Replacement MaxxFan Plus 4-Speed Roof Vent #MA00-04751KSX is only available with the white lid. You would have to swap out the lid with #MA10A40009K. Is your old lid still in good shape? You could swap it over to…

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Answer 5

Since multiple MaxxAir Fans have the same features that you listed it's honestly best to first determine the exact model number you have before purchasing anything and end up not having it be compatible. I've listed below all the available…

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Answer 6

Hello Jeff, It sounds like your MaxxAir AirExcel 4-speed roof fan #MA00-04751KSX is having a bit of trouble with the lid only opening about an inch, even though the fan itself works on all speeds. Since it does open when you manually crank it, that’s…

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Answer 7

You reported that you cannot use the remote on your MaxxFan 4700K to put the vent cover up and down. Let's troubleshoot. Put some new batteries in your remote. Ensure that the display comes on. Verify if your vent cover now works. Verify if other…

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Answer 8

The Advent Air Low Profile RV Air Conditioner #ADV29FR is the correct replacement for your Duo-Therm 620526.321. This is one of our only low profile units with the 15K BTU rating. It will connect to your Dometic Duo-Therm controller so you only need…

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Answer 9

Based on what you mentioned the correct replacement circuit board would be the part #MA10A04751KS.

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Answer 10

The Advent Air Replacement RV Air Conditioner for Dometic Setup w/ Start Capacitor - 15,000 Btu - White, #ACDOM150 is replacement for the Dometic air conditioner. This AC plugs directly into your Dometic setup working with existing air distribution…

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Answer 11

The correct Replacement Operator Mechanism for your model 4751KS MaxxAir MaxxFan is part #MA10-20281K-1AF. If your fan lid is unable to open even manually, then this is the part you need to replace. The other part you referenced, #MA10A04751KS would…

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Answer 12

The issue you are having with your MaxxAir MaxxFan 4751KS is more than likely an issue with the circuit board (control board). The circuit board is what is telling the motor to run or stop. The correct replacement circuit board for your MaxxAir…

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Which Replacement MaxxAir Circuit Board for Part # 4751k_Board_v1.4

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