Norcold N6XX/N8XX series / N61X/N81X fault codes
The 3 fault codes below are the ones that apply to this Norcold refrigerator family. The other 10 Norcold refrigerator codes in our database belong to different model families — they are listed further down so you do not troubleshoot against the wrong table.
Covered model numbers
N6XX/N8XX seriesN61X/N81X
Not on the list? Check the rating label before you troubleshoot — the code table below will not apply. Where to find it →
Fault codes on the Norcold N6XX/N8XX series / N61X/N81X
Indicates an open (blown) fuse on the power board, each protecting a different circuit. F1… no AC warning
No usable 120V AC power is reaching the heater. The control reports that AC power is not a… no CO danger
The control board's cooling-system monitor detected that the refrigerator is not actually …
Codes that do not apply to this model
These 10 codes exist on other Norcold refrigerators. If your unit is showing one of them, it is not from this family — re-check the model number on the label before acting on any of these.
DC input voltage too low. The 12V supply feeding the refrigerator control has dropped belo… 9 flashes
DC input voltage too high. The 12V supply to the refrigerator control has risen above the … 10 flashes
Communication lost between the refrigerator's controls (the user-interface/display board a… AC HE
AC heater fault. The control cannot run the 120V AC heating element correctly, indicating … AC rE / Sr CL
The AC relay on the rear power board is stuck closed, so the control can no longer switch … dc LO / dc HI
DC voltage faults. 'dc LO' means the 12V DC voltage supplied to the refrigerator is too lo… dr
Door-open alarm. The refrigerator door has been left open longer than about two minutes, s… Li OP
The high-temperature limit (thermal) switch has opened, or the connection at the LIMIT IN … no FL
The refrigerator tried to run on LP/propane (gas) mode but the control board did not detec… Sr FS / Sr
The flame-sense circuit inside the control has failed, so the refrigerator can no longer t…
Where the model number is
On the rating label inside the fresh-food compartment — usually the upper right side wall or the ceiling of the cabinet. On absorption fridges it is repeated on the burner-access panel behind the lower exterior vent.
Sources
- Norcold N6XX/N8XX Models Refrigerator Service Manual — Norcold, Inc. (Publication 619394E, Displayed Fault Codes tables (pp.7-10); 'n/no co Fault Code' and Power Board Resetting Procedure (p.21); Cooling System Monitoring / First and Two Recorded No Cooling Fault Occurrence (p.37))
- Norcold N6XX/N8XX Models Refrigerator Service Manual (newreset2) — Norcold, Inc. (hosted by BryantRV) ('n/no co Fault Code – No cooling detected by the controls'; power board reset procedure)
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