Step-by-Step DIY Fix Guide
- SAFETY: Unplug the refrigerator.
- Reset by unplugging for 5–10 minutes, then restore power.
- Listen for the compressor to start within 5 minutes.
- If 22 returns or the compressor does not start, call an LG-authorized technician immediately. Move perishables to a cooler.
If the warning comes back after restart
- If the warning returns immediately after a clean restart, the sensor or wiring path becomes more likely than a one-time glitch.
- 22 returns after a 10-minute power reset
- Compressor does not start after power restore
What This Error Means
Error 22 on your LG refrigerator means: The refrigerator has detected a fault with the compressor relay circuit. This is closely related to error 33 and indicates the same class of compressor start or run fault on certain LG model ranges. The refrigerator's self-diagnostic system has detected this condition.
The most frequent cause is compressor start relay failure. Work through the causes and fix steps below in order — many LG refrigerator errors are resolved without a service call.
LG's official guidance classifies 22 as a technician-only fault. A 5-minute power reset is the only DIY step — if the code returns, contact LG Support at 1-800-243-0000.
Compressor faults are among the most serious refrigerator errors. Move perishable food to a cooler immediately — a refrigerator without a running compressor will reach unsafe food temperatures within 4 hours. Do not delay calling a technician.
Most Likely Cause by Symptom
The LG refrigerator may stop, pause, or refuse to complete the cycle normally.
Likely cause: Compressor start relay failure
Check first: SAFETY: Unplug the refrigerator.
Common Causes
- Compressor start relay failure
- Compressor overload protector tripped
- Compressor winding fault
- Main control board output fault for the compressor circuit
What Not to Do
- Do not delay calling a technician — a refrigerator without cooling will spoil food within 4 hours
Model and Display Variation Notes
Model-family notes
- LG refrigerator display wording and code formats can vary by series.
- If your model behaves differently, check the owner manual before trying any deeper maintenance step.
Display and panel differences
- Panel wording can vary by series, so confirm the exact code pattern before buying parts.
Parts, Tools and Service Options
Service option
LG service visit if the warning returns after the basic checks are complete.
Manual and model check
Check your exact model and manual before ordering any LG refrigerator parts.
Common parts
- Compressor start relay ($10–$40)
- Compressor (~$200–$500+) if motor has failed ()
- Main control board if board is faulty ($100–$250)
This section stays service-first because the page points more strongly toward support or professional repair than a routine parts purchase.
When Not to Keep Troubleshooting
22 returns after a 10-minute power reset
- Compressor does not start after power restore
How to Prevent It Recurring
- Clean condenser coils every 6 months to prevent compressor overheating
Related Error Codes
33
The refrigerator has detected a fault with the compressor start relay or the compressor circuit. The compressor may not be starting or running correctly, putting the cooling system at risk.
CO
The main control board and one or more sub-boards (such as the display board or inverter board) cannot communicate. The refrigerator's internal electronics have lost contact with each other.
CF
LG refrigerator error CF usually means the rear condenser fan is not spinning normally or the control cannot confirm that it is running.
Extra notes
- This page is based on LG support material and stays conservative where model-specific guidance may vary.
- The goal is to help you identify safe first checks before you move into parts, service, or model-specific manual lookup.
Source and model notes
Last reviewed: 2026-04-08
Based on: Based on LG support material and edited into consumer-safe guidance for the exact code family on this page.
Model coverage note: LG refrigerator code meanings can vary by series, control panel, and model family, so use this page as a safe starting point rather than a replacement for the model-specific manual.
Important: FixThisError is an independent guide, not the manufacturer. Use your model-specific manual when the panel wording or behavior differs.
Always disconnect power before inspecting appliances. If unsure, contact a licensed appliance technician.