LG · Air conditioners
LG Air Conditioner CH01 / CH02 / CH06 / CH12: A sensor circuit needs attention
THE SHORT ANSWER
A sensor circuit needs attention
CH01 / CH02 / CH06 / CH12 indicates a sensor circuit needs attention. Record every digit and whether the unit stopped cooling or heating.
Record every digit and whether the unit stopped cooling or heating.
Keep covers fitted. Refrigerant, wiring and fan repairs require a qualified technician.
WHAT YOU MAY NOTICE
Symptoms to record
- The display shows CH01 / CH02 / CH06 / CH12.
WORK THROUGH THE BASICS
Safe troubleshooting checks
Use the checkboxes to keep track as you read. Stop at any warning or step that does not match your appliance.
Use the model’s safe power isolation to reset for about five minutes once. If the warning returns, stop and request service.
What to noteUse the result to decide whether the issue is resolved or needs service.
THE DETAILS MATTER
Scope & troubleshooting notes
Interpret this code in context
This grouped article avoids assigning an unsupported room, pipe or compressor sensor location from the number alone.
YOUR NEXT DECISION
When to stop and get help
Contact LG service if this indication returns or the appliance cannot resume normal operation.
THE EVIDENCE
Sources & verification
Our explanations are editorial summaries of the documentation below. They do not replace the instructions for your exact appliance.
- LG Air Conditioner — Sensor and Compressor Codes
LG USA · Manufacturer support · Checked
Error-code troubleshooting; relevant display identified in the article — LG air conditioners covered by this grouped sensor/compressor notice; exact sensor locations are not established here.