Norcold refrigerator · 2 model lines
Norcold refrigerator code HI dc
Norcold documentation describes HI dc separately for each model line: Norcold Polar N7LX / N8LX (“A high DC input-voltage fault”); Norcold N10LX / NA10LX (“DC input voltage to the refrigerator is too high”). Compare the wording for your model below.
Check your model first. The same code can mean different things on different models. Find the model number on the appliance's data label, then use the matching row below.
What code HI dc means by model
| Model line | What the manufacturer says | Source |
|---|---|---|
| Norcold N10LX / NA10LX | The Norcold N10LX/NA10LX owner manual lists HI dc as: DC input voltage to the refrigerator is too high. | Norcold N10LX and NA10LX Owner's Manual |
| Norcold Polar N7LX / N8LX | The manual lists HI dc as a high DC input-voltage fault. | Norcold Polar N7/N8 Owner's Manual |
What you can safely check
- Record the exact display wording and whether an audible alarm is present.
- Turn the refrigerator off if cooling is interrupted or the fault repeats.
- Move perishables if temperature is unsafe.
- Record charger, converter, solar, or generator state if visible.
Stop and call a technician for
- Battery charging, converter, DC supply, and refrigerator electrical diagnosis should be handled by qualified RV electrical or Norcold service.
- High-voltage DC electrical diagnosis should be handled by qualified RV electrical service or Norcold service.
Do not hand-light, clean burner parts, adjust LP gas, bypass refrigerator controls, or open electrical compartments. Shut off LP if gas odor is present and arrange qualified Norcold service for unresolved faults.
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
- model and serial label
- photo of display code
- power mode shown on display
- 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…
- 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.
- red flash 9 DC input voltage that is too high.
- 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…
Other codes on Norcold N10LX / NA10LX refrigerators
Full table: Norcold N10LX / NA10LX refrigerators
- no FL The burner did not ignite or re-ignite
- no AC AC voltage is not available to the refrigerator
- AC HE This fault indicates a problem relating to the AC heater
- AC rE This fault is within the refrigerator controls
- Lo dc DC input voltage to the refrigerator is too low with an audible alarm
- no dt This fault indicates a loss of communication between the refrigerator controls
- Sr This fault is within the refrigerator electronic controls
- oP LI This fault is within the refrigerator electronic controls
- FL -- A flame is sensed at the burner when there should be none present
- temperature setting flashes The thermistor has been sensed as inoperable, so temperature is controlled via backup ope…
- blank display The refrigerator is off or will not turn on