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Error code reference
Polar Refrigerator Error Code Lo dC
DC input voltage to the refrigerator is too low; all modes are inhibited (N7LX/N8LX models, with audible alarm).
SourcePolar 7 & 8 Series - Service Manual: Gas Electric Refrigeratorsp. 45
Diagnostic procedure
The full Lo dC procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Correct the DC input voltage to the refrigerator; make sure the input voltage is 12.0 VDC.
SourcePolar 7 & 8 Series - Service Manual: Gas Electric Refrigeratorsp. 45
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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