Norcold refrigerator · 1 model line

Norcold refrigerator: red flash 9

The manual maps Flash Code 9 to DC input voltage that is too high.

What this message means by model

Model lineWhat the manufacturer saysSource
Norcold Polar N7V / N8V / N7X / N8XThe manual maps Flash Code 9 to DC input voltage that is too high.Norcold Polar N7/N8 Owner's Manual

What you can safely check

  • Turn the refrigerator off and back on once.
  • Record converter, charger, solar, or generator state if visible.

Stop and call a technician for

  • High-voltage DC electrical diagnosis should be handled by qualified RV electrical service or Norcold service.

Do not bypass refrigerator controls, flame-sense devices, high-temperature protection, LP components, or electrical circuits. Shut off LP and power if there is gas odor, flame abnormality, overheating, or repeated fault behavior.

Write this down before you call

  • Norcold Polar model label
  • photo of display or indicator light
  • power mode and battery voltage if visible

Other codes on Norcold Polar N7 / N8 refrigerators

Full table: Norcold Polar N7 / N8 refrigerators

  • AC HE A problem relating to the AC heater.
  • AC rE A fault within the refrigerator controls.
  • amber flashes off The refrigerator is operating on AC power with the thermistor sensed as inoperable and ba…
  • blank display The refrigerator being off or not turning on
  • FL -- Flame sensed at the burner when none should be present.
  • green flashes off The refrigerator is operating on AC power with the thermistor sensed as inoperable and ba…
  • HI dc A high DC input-voltage fault
  • Lo dc Low DC voltage display terms for insufficient 12-volt supply. / A low DC input-voltage fa…
  • no AC No AC means AC voltage is not available to the refrigerator.
  • no dt Loss of communication between refrigerator controls.
  • no FL No FL for an LP flame/ignition failure condition.
  • oP LI A fault within the refrigerator electronic controls.
  • red flash 1 A problem relating to the AC heater.
  • red flash 10 Loss of communication between refrigerator controls.
  • red flash 2 A fault within the refrigerator electronic controls.
  • red flash 3 The manual gives model-specific meanings: N7V/N8V indicate flame present when it should n…
  • red flash 4 A refrigerator-controls fault.
  • red flash 5 Flame sensed at the burner when none should be present.
  • red flash 6 A problem relating to the DC heater on 3-way models.
  • red flash 7 A fault within the refrigerator electronic controls.
  • red flash 8 DC input voltage that is too low.
  • snowflake flashes Temperature setting snowflakes flashing means the thermistor has been sensed inoperable a…
  • solid red The refrigerator tried to operate on the selected energy source with no success.
  • Sr Sr is a fault within the refrigerator electronic controls.
  • temperature setting flashes Temperature setting flashing means the thermistor has been sensed as inoperable and backu…

Related troubleshooting guides

Official sources