ERROR CODE EXPLAINED
LG Air Conditioner
LG Air Conditioner CH38 Error Code
What it means
CH38 indicates that the air conditioner is detecting low refrigerant.
Try this first
- If the code appeared after installation or relocation, contact the installation technician to inspect the refrigerant charge and piping connections.
- If it appeared during normal use, unplug the unit or turn off its breaker for 5 minutes, then restore power.
- If the code returns, contact LG support or arrange service.
Can I keep using it?Follow the manufacturer checks that match the condition shown by the appliance; model-specific details can vary.
Repair usually required?If the manufacturer directs the issue to service or the listed checks do not clear it, arrange professional appliance service.
If the error keeps returning
Use the linked official manufacturer support article for the exact source guidance and model-specific details.
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.