Norcold Power Board 639593 (installation and advice)

Norcold Power Circuit Board 639593/ 638189
*fits the N7/ NA7/ N8/ NA8/ N10/ NA10 models

639593 is the Norcold part number. The number 638189 appears as the p/n stamped onto the board cover itself. This is the rear power board/ circuit board that works on the following Norcold models, regardless of serial number:

N7
NA7
N8
NA8
N10
NA10
*letters and numbers after the original model above do not matter when it comes to the power board. If your model refrigerator starts with one listed above, this is what you need! Your Norcold model number tag can be found inside the refrigerator on the right hand side.

Troubleshooting:

Potential problems that a new power board could solve:

Refrigerator not sensing AC power
Refrigerator not sensing AC heating element
Refrigerator not sensing a flame
Refrigerator not powering on
Refrigerator incapable of resetting
Intermittent issues
SR code display
If any electrical burn marks are present anywhere on front or back of power board, you should replace it.

Installation:
Time:

30 minutes or less
Tools:

Ratchet set
Screwdriver
Steps:

Turn your battery switch to OFF
Remove power board cover
Take a picture of the board before disconnecting any wires
Disconnect all wires and remove defective board
Place new board on old board cover base and connect wires
Before placing board cover on, turn battery switch ON and power up refrigerator to verify everything is connected and that there are no faults present. If everything is working, put cover back on.

https://rvfridgeguys.com/norcold-power-board-639593-fits-the-polar-n7-n8-n10-models/

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