ERROR CODE EXPLAINED
LG Air Conditioner
LG Air Conditioner CH07 Error Code
What it means
CH07 can appear when connected indoor units are set to conflicting operating modes.
Try this first
- Check the operating mode of each connected air-conditioning unit.
- Set all connected units to compatible modes: heating together, or cooling/dehumidification together.
- Air Purification and Fan modes can be used without the same heating-versus-cooling restriction.
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.