LG · Air conditioners
LG Air Conditioner CH61: Overheating protection is active
THE SHORT ANSWER
Overheating protection is active
CH61 indicates overheating protection is active. Check for objects blocking safe, accessible airflow around the unit.
Check for objects blocking safe, accessible airflow around the unit.
Keep covers fitted. Refrigerant, wiring and fan repairs require a qualified technician.
WHAT YOU MAY NOTICE
Symptoms to record
- The display shows CH61.
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.
In cooling mode, clear external airflow obstructions without opening the outdoor unit. In heating mode, clean the owner-accessible indoor filter. After filter cleaning, LG specifies disconnecting power for three minutes before restarting; use only a safely accessible plug or the identified AC breaker. If CH61 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
Record the operating mode: the cited guide describes outdoor-unit heat during cooling and indoor-unit heat during heating. Installation changes belong to the installer.
YOUR NEXT DECISION
When to stop and get help
Stop operation if CH61 returns after airflow checks or there are signs of overheating.
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 — Resolve CH61
LG USA · Manufacturer support · Checked
Error-code troubleshooting; relevant display identified in the article — LG heating/cooling systems showing the documented overheating protection code.