Tech Blog

Norcold N611 or N811 Blinking/ Flashing 4 Times! Quick Fix!

Posted by Brian on 3rd May 2021

Is your Norcold N611 or N811 blinking 4 times, pausing, then blinking again? This is a fairly common issue typically from bad power being applied to the refrigerator power board. It's a controls failure and it means you need to replace your power board in the back of the refrigerator. If your refrigerator's serial number is below 9056491, you need the following board: Norcold Power Board 6212XX If …
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Norcold N7/ N8/ N10 showing "no dt" fault code (troubleshooting help!)

Posted by Brian on 10th Jul 2020

Is your Norcold Polar N7, N8, or N10 showing "no dt"? This fault seems to have plagued many of these new Norcold models and unfortunately it often times comes down to replacing either the front optical board or the rear power board. The reason for the fault is an issue with communication between both boards and more specifically with the blue wire running through the refrigerator box, connecting …
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