Home Fault Codes

LG Refrigerator Error Code Er CO: Meaning and Fix

Er CO
How Er CO appears on a LG refrigerator display.
Display board for an LG refrigerator, a part commonly involved in the Er CO code
Sears PartsDirect product image (LG OEM part EBR59400503)

Also shown as: E CO

Reading the refrigerator display

On a refrigerator the code shows on the control panel or dispenser display. Some models flash a letter or alternate two characters; hold the code in view and note both. LG codes are short letter pairs; a capital O differs from a zero.

LG appliances show short alphabetic codes (OE, IE, UE on washers, Er plus letters on refrigerators) and, on ThinQ models, a Smart Diagnosis option. LG also builds many Kenmore Elite units. The codes apply to model numbers such as LDF7774ST, LDT5678SS and DLEX3900B; check the label on your unit to confirm yours.

What causes Er CO

How to fix it

  1. Unplug the refrigerator or trip its breaker for about five minutes.
  2. Plug it back in and watch whether the code returns.
  3. Check that the display harness is seated if you are comfortable opening the panel.
  4. If the code repeats, request service.

Parts you may need

PartPart no.Buy
Display boardEBR59400503Find part
Main control board6871JK1011FFind part

Part numbers are OEM references; confirm fit by your model number before ordering. Some links are affiliate links; we may earn a commission at no extra cost to you.

Questions

Is Er CO dangerous for food?

Cooling may still run, but have it checked soon.

Which board is bad?

A technician tests both.

Does a reset help?

Only for temporary glitches.

Other LG refrigerator codes

Evaporator fan motor for an LG refrigerator, a part commonly involved in the Er FF codeEr FFFreezer fan errorEvaporator fan motor for an LG refrigerator, a part commonly involved in the Er rF codeEr rFRefrigerator fan errorDefrost heater for an LG refrigerator, a part commonly involved in the Er dH codeEr dHDefrost failureIce maker fan motor for an LG refrigerator, a part commonly involved in the Er IF codeEr IFIce maker fan errorCondenser fan motor for an LG refrigerator, a part commonly involved in the Er CF codeEr CFCondenser fan errorTemperature sensor for an LG refrigerator, a part commonly involved in the Er FS codeEr FSFreezer sensor error

Sources

Part numbers are OEM references; confirm fit by your model number before ordering. Meanings compiled from manufacturer and parts-retailer documentation; see sources below. Unplug the appliance before opening it.

Applies to models including LRMVS3006S, LFXS26973S, LMXS28626S, LRSXS2706S, LTCS24223S.