Every refrigerator error code, explained.

French door, side-by-side, InstaView, and Door-in-Door LG refrigerators. Error codes display as "Er" plus 1-2 characters on the temperature panel.

• Er 22 Compressor relay fault — linear compressor will not start.
• Er CF Condenser fan motor fault — fan is not spinning or runs at wrong speed.
• Er CO Communication error — main board and display board cannot talk to each other.
• Er dH Defrost cycle did not complete within 1 hour — defrost heater fault.
• Er IF Ice maker fan fault — fan inside the ice room has stopped.
• Er F1 Ice maker fan fault — variant of Er IF, same family of root causes.
• Er FF Freezer fan motor fault — fan has seized, frozen up, or burned out.
• Er rF Refrigerator fan motor fault — fresh-food side fan has stopped.
• Er FS Freezer sensor short or disconnection — controller cannot read freezer temperature.
• Er rS Refrigerator sensor short or disconnection — controller cannot read fridge temperature.
• Er dS Defrost sensor short or disconnection — defrost cycle cannot end correctly.
• Er IT Ice maker defect — ice maker has logged an internal fault.
• CL E (E CL) Low-side refrigerant leak — sealed-system fault on the evaporator side.
• CH E (E CH) High-side refrigerant leak — sealed-system fault on the condenser side.
• Er gF Flow sensor error — water flow through the dispenser is too low.
• OF F Demo (showroom) mode is active — cooling is disabled.

French door, side-by-side, Family Hub, and Bespoke Samsung refrigerators. Codes display as 2-3 character alphanumeric pairs (5E, 22E, 41E, 88 88) on the touch panel.

• 5E Refrigerator defrost sensor fault — controller cannot manage defrost cycle.
• 8E Ice maker sensor or mechanism fault — ice maker has stopped producing.
• 14E Ice maker sensor error — sensor inside the ice maker reading wrong.
• 21E Freezer fan motor fault — fan is iced over, motor failed, or door is open.
• 22E Refrigerator fan motor fault — fresh-food side fan has stopped.
• 23E Condenser fan motor fault — compressor cannot reject heat properly.
• 33E Ice pipe heater fault — the water supply line is freezing up.
• 41E Ice maker function fault — system-level ice-maker problem.
• 84E Fridge evaporator sensor error — controller cannot read evaporator temperature.
• 88 88 Control board fault — unit has powered up but the board is reporting an internal error.
• 85C Low voltage warning — unit detected brief power disruption.
• PC ER (PC CH) Communication error — main board cannot reach a peripheral module.
• OF OF (O FF) Cooling Off mode (demo / showroom mode) is active — cooling is disabled.

Side-by-side, French door, and top-freezer Whirlpool refrigerators. Codes display as alphanumeric pairs (PO, CF, E1, F1, E3, etc.).

• PO Power outage indicator — freezer temperature rose above 18°F during the outage.
• CF Communication failure between main control board and door user interface.
• E1 Refrigerator temperature sensor fault — sensor failed or buried in frost.
• F1 Same fault as E1 on older Whirlpool firmware — temperature sensor or EEPROM error.
• E3 Defrost system fault — heater, thermostat, or control board not running defrost correctly.
• d Stuck damper — the motorized flap that controls cold-air flow into the fridge is jammed.
• SY CE System Communication Error — main board and one of its peripheral modules disagreeing.

GE, GE Profile, and GE Café refrigerators. Flashing green codes on the temperature panel signal a fault; codes use 2-letter abbreviations.

• PF Power failure indicator — the unit lost power and may have warmed during the outage.
• FF Freezer temperature high — the freezer cannot hold the target temperature.
• CC Refrigerator compartment too warm — fresh-food side cannot hold the target.
• CI Ice maker fault — controller has detected the ice maker is not producing ice.
• dE Defrost cycle warning — the defrost may not have completed normally.
• DF Defrost failure confirmed — heater or thermostat has failed.
• DE (Door) Door switch fault — controller thinks a door is open when it is closed (or vice versa).
• DEMO Demo mode (showroom mode) is on — cooling is disabled.
• WF Water filter reminder — filter is due for replacement.

French door, side-by-side, and built-in KitchenAid refrigerators. Shares the Whirlpool parts catalog so error codes are nearly identical.

• PO Power Outage indicator — freezer warmed above 18°F during the outage.
• E0 Communication error between main control board and user interface.
• E1 Defrost system fault — heater, thermostat, or control circuit has failed.
• E2 Main temperature sensor (thermistor) fault — sensor failed or disconnected.
• E5 Freezer thermistor fault — sensor in freezer section has failed.
• E9 Evaporator fan motor failure — fresh-food side gets no airflow.

500, 800, and Benchmark series Bosch refrigerators (counter-depth French door and built-in). Codes display as "E1" through "E5" on the temperature panel.

• E1 Refrigerator compartment sensor fault — controller cannot read fridge temperature.
• E2 Freezer compartment sensor fault — controller cannot read freezer temperature.
• E3 Freezer-side temperature sensor secondary fault (on some Bosch models).
• E4 Condenser-area temperature sensor fault (on Bosch built-in and counter-depth models).
• E5 Multi-sensor failure or control module fault — Bosch service required.

Gallery, Professional, and standard Frigidaire refrigerators. Codes display as 2-letter pairs (SY EF, SY CE, OP, CF) on the temperature panel.

• SY EF (5Y EF) System Evaporator Fault — evaporator fan circuit problem.
• SY CE System Communication Error — main board and user interface not talking.
• SY CF System Condenser Fan fault — feedback signal from condenser fan is wrong.
• OP Open thermistor — freezer temperature sensor disconnected or door truly open.
• SH Shorted thermistor — temperature sensor has shorted to ground.
• H1 High-temperature alarm on Frigidaire wine and beverage coolers / some standard models.

French door, side-by-side, and top-freezer Maytag refrigerators. Shares the Whirlpool parts catalog so error codes are nearly identical.

• PO Power outage indicator — freezer warmed above 18°F during the outage.
• F0 E1 Main control board fault — board reports an internal error.
• Flashing "F" Generic fault indicator — board has logged an unknown fault.
• E1 Refrigerator temperature sensor fault — sensor failed or disconnected.
• F1 On older Maytag firmware: same fault as E1 (temperature sensor).