Quick diagnosis
What this code is telling you
Most likely trigger
compressor start device fault
Recommended replacement
Compressor Start / Control System
Diagnostic path
3 ordered checks
Part fit
Exact model number required
Safety first
Before opening the appliance
Disconnect electrical power before removing panels or handling internal components. Do not bypass safety devices or perform live electrical testing unless you are qualified to do so.
Read the full safety disclaimerRoot cause
Why the control reported this error
LG code 22 is associated on affected refrigerators with a compressor-start or relay-related fault because compressor start device fault. compressor unable to start and control or wiring issue can produce the same code, so verify the fault before replacing components.
Possible causes
Check the most likely causes first
- 1
compressor start device fault
Start here when it matches your symptoms.
- 2
compressor unable to start
- 3
control or wiring issue
Diagnostic sequence
Work through these checks in order
Stop when you find the fault. Do not perform a step that requires skills or live testing you are not qualified to do.
- 1
Check 1
Record the code and avoid repeated power cycling.
- 2
Check 2
Confirm normal household power.
- 3
Check 3
Persistent code 22 requires qualified refrigeration-system service.
Replacement part reference
Compressor Start / Control System
Exact OEM part number
Model number required
Fitment note
The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
Verify the appliance model before ordering.
Manufacturers can use different parts under the same error code across model families and production revisions.
Where do I find my model number? →FixCodeDB may earn a commission from qualifying purchases made through affiliate links.
Common questions
Quick answers for this fault
What should I check first for 22?
Start with compressor start device fault. If that checks out, continue through the diagnostic sequence above rather than replacing a part based on the code alone.
Does 22 always mean Compressor Start / Control System is bad?
No. An error code identifies the condition the control detected, not a guaranteed failed part. Confirm the likely causes and wiring first. The exact OEM part number varies by model and production revision. Verify the complete model number before ordering.
When should I stop troubleshooting 22 myself?
Stop if the next step requires live electrical testing, sealed-system work, gas or combustion service, or any procedure outside your training. Disconnect electrical power before removing panels or handling internal components. Do not bypass safety devices or perform live electrical testing unless you are qualified to do so.
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Related LG guides
LG lists code 33 among refrigerator diagnostic codes; on affected models it indicates a water/ice-system fault requiring model-specific diagnosis.
LG code 67 indicates a door gap or door-related condition on affected refrigerators.
LG lists 88 as a refrigerator diagnostic code that requires model-specific interpretation.
Er FF code signals a failure in the freezer evaporator fan motor circuit or ice buildup blocking fan operation.
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