NORCOLD®

Norcold Board Kit 637779 (replaces 633292) fits N621/ N821 model

SKU:
637779
Condition:
New
Availability:
Discontinued

Norcold Board Kit / Controls Adapters Included 637779 (old 633292) Models N82X/ N62X Every Norcold refrigerator has a specific power board and optical board.  They are completely proprietary with eachother beca…

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Discontinued and out of stock. There is no replacement.

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Product Details

Norcold Board Kit / Controls Adapters Included 637779 (old 633292) Models N82X/ N62X

Every Norcold refrigerator has a specific power board and optical board.  They are completely proprietary with eachother because they need to communicate back and forth.  This kit will work on any N82X/N62X model refrigerator that has an obsolete optical board assembly. This is determined by the serial number located on a decal inside the refrigerator box. If your serial number is below 9126825, this is the kit you need. If your serial number is above 9126825, you need:

Norcold Optical Board 628974 (click)

Included in the kit:
Optical Board w/ wire adapter
Power Board w/ wire adapter
Lamp/thermistor wire (the jumper wire that goes across LI IN and LI OUT)
Installation instructions
 
Works with the following models:
  • N621/N6213/N621F/N621SS
  • N622 WINNEBAGO
  • N623
  • N624
  • N820
  • N821/N821BK/N821BKF/N821F/N821IM/N821V
  • N822/N822F
  • N823
  • N824

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Reviews

32 Reviews

  • Excellent
    5

    Posted by Unknown on 6th May 2017

    Easy to install perfect fit

  • Can't Adjust Temperature N822RT / We are working good now !
    5

    Posted by Gene on 18th Apr 2017

    I wanted to adjust the temperature of the refrigerator, when I tried the display would go to "1" then "8". This happens when I try to adjust the temperature or change the mode. Other then that the refrigerator works perfectly and switches between gas and electric also fine. I received this "kit" and followed some included instructions and we are working great now. We received this in a couple of days with standard shipping.

  • Good Product
    5

    Posted by Bert on 18th Apr 2017

    Really great company to work with. I've ordered with Norcold Guy before they changed websites. They've always had really quick shipping and great product knowledge. I ordered this kit because of a power board problem I was having. The old power board was more expensive than this kit, so THEY recommended I get it to upgrade them. Glad I did. Instrcutions were not too tough to follow. It took me about a half hour to do the install.

  • Need more info!
    4

    Posted by Paul on 3rd Apr 2017

    Hooked everything up as described. After hooking everything up our N821 would throw a ( d ) code showing door was open to long to open and close door didn't cure problem. Frig would not let me switch from Electric to gas manually. It also would not let me change temp settings. Called on a friend who is a norcold repair man. He had to call service tech from Norcold. Which found out had to CUT PURPLE wire from harness behind control panel to fix problem. Everthing works great now. Should have added some suggestions on trouble shooting certain problems. *this is only on old models and there is no known serial number break for the issue but you are right! When experiencing the above, assuming you have the right board kit, your next step is to snip the purple wire from the optical board plug coming from the refrigerator. - The Norcold Guy

  • Thanks!
    5

    Posted by Unknown on 1st Feb 2017

    Thank you to NorcoldGuy for getting me this kit in a very timely manner at a great price. The part was packaged really well and had installation instructions. I got it put together fairly quickly (30 minutes). Front board is a lot quicker than the rear. The connections are a bit tedious to make sure they go back correctly. Not too difficult.

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Popular Questions

6 years ago
Will this work with Norcold N822RT serial number 10142392 See more »
4 years ago
No, it will not. Your serial number is ABOVE the serial number break which means you already have the new style boards. If you need a power board, it's 628661 and if you need the optical board, it's 628974.
6 years ago
4 years ago
Yes, it will. Just like in the description above, it fits all N621 and N821 models with a serial number below: 9126825.
5 years ago
4 years ago
That number is not anything that I can reference. You look up the board you need with your model and serial number.
6 years ago
I purchased from you but lost instructions Please can you send as pdf to email See more »
4 years ago
You will need to obtain documentation from Norcold at 8005431219.
5 years ago
Bought one of these control board/optical board kits because upon buying camper, optical board was missing. Refrigerator was working, but coolong too much. Received parts and installed all components included, followed all steps. Now I have a trouble code “o” on my display, which indicates “Cooling unit high temp limit switch is open( if applicable)”. This apparently is not owner serviceable and has to go to dealer? Ive looked and put the unit through its diagnostic modes and have come up with little to nothing. My serial # doesnt seem to be within recalled units numbers. Please help. See more »
6 years ago
or the kit number See more »
4 years ago
That optical board is no longer in production and there is not a replacement that will work in it's absence. I am really sorry about that! The replacement refrigerator is the NA8LX.
6 years ago
I have model N621 serial number 1041015F is this board and controller compatible with my refrigerator, and if so is there anything else I need to purchase to retrofit. Thank you Stewart . See more »
5 years ago
With part do i have to change? 628661 or 628662? See more »
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Reviews

Reviews

  • 5
    37 (76%)
  • 4
    8 (16%)
  • 3
    2 (4%)
  • 2
    2 (4%)
  • 1
    0 (0%)
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Taylor S. Verified Customer   
11-08-22

This kit got the refrigerator working again.

Rick S. Verified Customer   
10-14-22
Great kit

Everything was packaged with care , instructions were easy to follow and installation was quite straightforward if attention was paid to instructions. Installed main board still need to install optical board yet.

Brian C. Verified Customer   
07-12-22
Good maintenance choice for an older frig.

Took a few moments to make sure I was understanding all the steps but installed one evening after work and it works great. Resolved the internal error, and along with the new thermostat wire it is running cooler at lower settings.

Norcold Board Kit 637779 (replaces 633292) fits N621/ N821 model