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Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents

Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents

Item # MA10A21276K
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Shipping Weight: 0.22 lbs
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Replaces the printed circuit board for your MaxxFan RV roof vent with manual lift. 1-800-496-5010 to order MAXXAIR accessories and parts part number MA10A21276K or order online at Free expert support on all MAXXAIR products. Guaranteed Lowest Price and Fastest Shipping for Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents. Accessories and Parts reviews from real customers.
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  • Reviews (32)
  • Q & A (0)
  • Videos (1)
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  • Why etrailer?

MAXXAIR Accessories and Parts - MA10A21276K

  • RV Vents and Fans
  • Roof Vent
  • Circuit Board
  • Redline

Replaces the printed circuit board for your MaxxFan RV roof vent with manual lift.


  • Replaces the printed circuit board for your MaxxFan RV roof vent with manual lift
  • Works with: MA00-04000K, MA00-05100K, and MA00-06200K

10C21276K Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents

Replaces 10A21276K and 10B21276K

Video of Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Maxxair - RV Vents and Fans - MA10A21276K

Today we're taking a look at the replacement printed circuit board. Now, this replaces the printed circuit board for your max fan RV roof vent, with manual lift. It works with part numbers MA00-04000K, MA00-05100K and MA00-6200K.It's a direct replacement from the original manufacturer. It has the quick connect plug on these two wires over here. This is like your antennae, so that does not actually get connected, and then these two wires will need to be hard wired in and they are labeled. This one's your positive wire, white one is your negative or ground.That's going to do it for today's look at the replacement printed circuit board..

Customer Reviews

Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents - MA10A21276K

Average Customer Rating:  4.6 out of 5 stars   (32 Customer Reviews)

Replaces the printed circuit board for your MaxxFan RV roof vent with manual lift.


Customer service was excellent. Quick replies to inquiries,always kept informed of order status and good follow up after delivery.The circuit board fit perfectly,was fairly straightforward to install and my fan now works like new.Very happy with my first experience with this company.


Good price fast delivery love Etrailer


Product installed nicely and works great. When I ordered the product was out of stock and expected date was in September. Happily it showed up in July. Staff offered me a replacement that cost more and was the wrong part - not sure why they did that. But I'm happy it came earlier than expected and did the job. Now I can run my cooling fan for the rest of the summer!


This part was exactly what I needed in the ordering process was fantastic.


I’ve had this part installed about a year. I have had no issues with it. Thanks to eTrailer for helping me find the correct part and getting it to me in a timely matter.


The replacement board did not work either. After it was installed I had the same problem I had originally - the fan would start but then the beeping would begin and the fan would not function. The only way to try again was to take out the breaker and put it back in. I suspect it is a voltage issue as it is said this is a problem with Maxx fans. I did check voltage and it seemed to be within the required parameters. So I bought a $xx thermostat with dial and reversible switch and with a little engineering, installed that and now have a working fan. I threw the original board and replacement in the trash.


The green light and the automatic thermostat broke almost immediately as did the original factory part. The rest works as intended, so far.

I will have our customer service team reach out to you.
-- Etrailer Expert Jenny N - 01/07/2022


Even though the key pad was on a long term back order you kept me informed and updated on a delivery date. Great job.


Our Maxxfan had a flashing green light and beeping from the unit. Thanks to your on line trouble shooting help, it told us when you have this issue, you need to replace the circuit board. Again, through your online help info, it told us the part number the circuit board we needed for our 4000k Maxxfan. I paid for faster shipping and received the circuit board in 2 days. The extra shipping fee was worth the price. The circuit board was easy to replace and we are up and running again. This fan is in our bedroom and we use it constantly when we RV. A very happy customer!


fixed my issue and was fairly easy to i nstall.


Took about 15 minutes to install and works perfectly. Ordered March 2022 with anticipated delivery date of October 2022, so was happy to receive it in July 2022.


Item as described and works perfectly.


Thankfully these PCB board were available! Price per unit, ehh, reasonable but off set by the ease of using the etrailer site. Yes, I'd order again (if necessary).
PRO's: [My story: (*No blame intended or implied; just background info.) Since I choose to order discounted/used (but top quality) vent fans. (BTW, brand new my opinion is that these fans are *excessively priced for what they really are.} Anyhow, both units arrived quickly & were very well packaged. Also, both vent fan units were in overall really good appearance/ condition but both failed to function. Troubleshooting them revealed that each of their PCB's were bad. (Although different models; thankfully both vent fans were from the same OEM mfg, and therefore, the PCB boards were the same.) Take your time but disassembly of the vent fan units was easy. Installation of the vent fan unit PCB boards was easy. After a full function test was completed on both units - they worked as mfg.d; installation of the vent fans into the RV proceeded as originally planned. FYI: Yes, I'd order from etrailer again! I'd also order again - discounted/ previously used items again knowing the ease of basic repair & parts replacement. (*Item specific.) Also BTW, even though I had to also order replacement PCB boards for these discounted/used vent fans - my final out of pocket cost was still nearly $100/dollars less than the cost of New In The Box vent fans.}

(a) (My story. Sorry, a bit of a rabbit trail but related.) 1st, sorry whaaa? Did I miss it? Buyer beware! I do not recall reading anywhere on the listing for the discounted/ used vent fans that stated that the used vent fans were also "non-functioning". *Since each vent fans was still pricey (over $150.00-200.00/each). If the listing had stated that they were non-functioning & used - at the prices listed - I would not have immediately ordered them. (*Although I can't dictate to any company what "used, non-functioning' items should be listed for; in my humble opinion, non-functioning/ used vent fans, no matter the mfg, should be way less than $100.00 each regardless of condition.) Having whined about that...yes, in my case as an electronics repair tech; most likely I would have reluctantly order these vent fans.
(b) *I wish that either the OEM mfg or eTrailer would there have an additional service: PCB exchange / credit for returning used PCB boards. {Even being an electronics-technician (& most people are not) - as an RV owner/ user - I'm not looking to make the task of replacing vent fans take any longer than it already will to do it right. (Additional thoughts on this point: Having a PCB exchange program would give both the distribution company & OEM mfg an additional service (less pricey) to offer their customers. As well as, as an RV owner/ user; it would be nice & convenient, quick fix on the road, to have at least 1-spare PCB assembly on hand. *Other than having to find a suitable location to store items in my RV.


Took awhile to ship. But worth the wait for a direct replacement for my Maxxair vent.


Good product and easy to install it.


Great customer service


Problem solved, beeping green light. Fast shipping reasonable price.


Good replacement for old defective board.
had only 5 pins (instead of 8) but it still works when matching pin #1 with #1.
Still, this unit is VERY picky with voltage. It will emit error sound and refuse to start when supplied with as low as 13.0 VDC (13.8 is usual in RV). The old unit failed because of this design flaw and the problem is known from the manufacturer. It is hard to understand why they would not fix this (greed?). I had to add a voltage regulator (or buck converter) to this unit to work correctly. I suggest it for anyone out there replacing it, with it, it works flawlessly.
Only 3 stars because part is hard to find, compatibility is not explained (5 pins to 8 pins), it isn't cheap and it will still fail if voltage is not regulated.


This isn't the easiest product to source and I was surprised that etrailer stocked it. I got an email stating a future delivery date of over a month. A quick email garnered an automated reply and the followup request for clarification gained no honor, which had me completely convinced that I had stepped into a bait and switch, possibly even a scam site (could it have been a mirror of the real site??). I realized I was at a complete loss, the internet being what it is, when......low and behold, my order arrived. Exactly as promised, in good condition. I will hold the last star only for the customer service. Nicholas-bot , when I ask, you answer. I wouldn't hesitate to order again.


Worked just exactly like it was supposed to. Can't ask for more than that. I was just happy that this item was actually available after burning out the original by having too much voltage from my old converter.


I only ordered from E Trailer as everyone else who listed this part was backordered. E Trailer delivered this circuit board 6 weeks after I placed my order. 6 weeks, that is ages but the only game in town. The price was also 2x what other venders listed on their website. But e trailer was the only supplier that could supply this circuit board. The circuit board works fine. But 6 weeks to delivery hardly rates a hurrah fro me. Only game in town...


Glad to be able to replace this inexpensive part instead of purchasing a whole new roof vent!


Item arrived well packaged and arrived in 8 days.
Exact as described. Only site that has hard to find parts at a reasonable price.


A direct replacement for my model 5100k.
applied conformal coating since the original was damaged from rain.


Hard to find part delivered quickly even with economy shipping.
Thank you etrailer...

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Info for this part was:

Employee Jameson C
Expert Research:
Jameson C
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Manda E
Updated by:
Manda E
Employee Amanda M
Edited by:
Amanda M
Employee Adam Y
Written by:
Adam Y

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