ERROR CODE EXPLAINED
LG Air Conditioner
LG Air Conditioner CH53 Error Code
What it means
The air conditioner detected a communication problem between the indoor and outdoor units.
Try this first
- Turn the air conditioner off.
- Disconnect the power cord or switch off the circuit breaker.
- Wait about 5 minutes.
- Restore power.
- If recently installed or relocated, have the installation and communication wiring checked.
Can I keep using it?⚠ Check before continued use
Repair usually required?⚠ Service may be required
If the error keeps returning
If CH53 returns after the recommended troubleshooting, LG recommends inspection or service.
Official source
Troubleshooting information verified against manufacturer support documentation.
View manufacturer support page →Safety note:ApplianceSignal provides general troubleshooting information. Always follow the appliance manufacturer's safety instructions and disconnect power when required.