LG Refrigerator Error Code ER CO
Communication Error
Severity
DIY Difficulty
Est. Cost
$100 - $400
Est. Time
60 min
What Does ER CO Mean?
LG refrigerator error ER CO means communication error. This is a serious issue with a DIY difficulty of 5/5. Most repairs cost between $100 and $400.
Common Causes
Component failure
This is a potentially significant cause of the ER CO error on LG refrigerators.
Major blockage
This is a potentially significant cause of the ER CO error on LG refrigerators.
Electrical issue
This is a potentially significant cause of the ER CO error on LG refrigerators.
Water damage
This is a potentially significant cause of the ER CO error on LG refrigerators.
Step-by-Step Fix
Power cycle the appliance
Unplug your LG refrigerator for 60 seconds, then plug it back in. This clears temporary errors and resets the control board.
Check for obvious issues
Inspect your refrigerator for any visible problems such as loose connections, blockages, or unusual sounds. Many ER CO errors on LG units are caused by simple issues.
Run a diagnostic cycle
Many LG refrigerators have a built-in diagnostic mode. Check your user manual for the specific key combination to enter diagnostics on your model.
Test related components
Based on the ER CO error meaning (Communication Error), check the specific components involved. Use a multimeter to test for continuity if you are comfortable with electrical testing.
Contact a professional
If the above steps do not resolve the ER CO error, contact a certified LG technician. This repair has a difficulty rating of 5/5 and may require specialized tools.
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