Er 88 88
LG
Control Panel Initialization / Power-On Self-Test Error
Display shows “88 88” or all segments lit; refrigerator may not respond to controls.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Glitched control firmware, Power surge affecting PCB, Loose display-to-main-board connector, Failed display PCB
How to Fix / Troubleshooting
Safety: Disconnect power before removing control covers.
- Hard reset: Unplug the refrigerator for at least 5 minutes. Press and hold any control buttons for 10 seconds while unplugged to discharge capacitors, then restore power.
- Check connectors: Remove the display/control panel and reseat all ribbon cables and harnesses.
- Inspect for damage: Look for burn marks or corrosion on the display PCB.
- Replace display PCB: If the issue persists, replace the display/control board with an LG-compatible part.
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Repair Difficulty
Medium
3/5
Required Part
Display Control Board
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