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Polar Refrigerator Error Codes
23 error codes for Polar refrigerator models. Each links to the full diagnostic procedure from the service manual.
CodeDescription
AC HEAC heater faultAC rEAC heater relay on the main control board (power board) is stuck closed…dc HEDC heater faultdc rEDC heater relay (K1 on the DC Board) contacts are stuck closed (N7LX/N8LX…FL --A flame is sensed at the burner when there should be none present; gas valve is…Flash 1AC heater faultFlash 10Communications between the user interface (controls) and the main control board…Flash 2Internal control fault detected by the main control board (power board).Flash 3On the main control board (power board), the limit circuit is open.Flash 4The AC heater relay on the main control board (power board) is stuck closed.Flash 5A flame is sensed at the burner when there should be none present; gas valve is…Flash 8The DC input voltage to the refrigerator is too low.Flash 9The DC input voltage to the refrigerator is too high.HI dcDC input voltage to the refrigerator is too high (N7LX/N8LX models).Lo dCDC input voltage to the refrigerator is too low; all modes are inhibited…Lo dc (alarm)DC input voltage to the refrigerator is too low; either GAS MODE or DC MODE…no ACAC voltage is not available to the refrigerator (N7LX/N8LX models).no dtCommunications between the user interface (controls) and the main control board…no FLThe burner did not ignite or re-ignite; no flame sensed at burner when there…oP LIOn the main control board (power board), the limit circuit is open (N7LX/N8LX…MyPros+ Max
Get the full diagnostic procedure for any Polar refrigerator error code.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts
- Verified part numbers when replacement is required
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