Staff Answer
Sep 28, 2026 - 06:31 AM
That points to your converter, not the fridge. When the converter charges above about 13.7V, it's likely putting out "dirty" DC (voltage ripple), and the Norcold board is sensitive to that. Turning on lights pulls the voltage down and smooths it out, which is why it works then. Check the converter's output, and consider replacing an older converter with a modern one that delivers clean DC.
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