LG Error Code CH03
Indoor outlet temp sensor error
Error Code Summary
| Brand | LG |
| Error Code | CH03 |
| Meaning | Indoor outlet temp sensor error |
| Cause | Evaporator outlet sensor fault |
| Recommended Action | Check/replace outlet thermistor |
How to Fix LG Error CH03
- 1
Power Cycle the Unit
Turn off the unit at the breaker, wait 5 minutes, then restore power. Some errors auto-clear after a restart.
- 2
Identify the Issue
Error CH03 means: Indoor outlet temp sensor error. The most common cause is: Evaporator outlet sensor fault.
- 3
Take Corrective Action
Check/replace outlet thermistor
- 4
Test the System
After completing repairs, run the system and monitor for the error code. If it recurs, the issue may require professional diagnosis.
Safety Notice
Always disconnect power before performing any electrical work. If you're not a certified HVAC technician, contact a qualified professional for repairs involving refrigerant, electrical components, or compressor work.
Frequently Asked Questions
What does LG error code CH03 mean?
LG error code CH03 indicates: Indoor outlet temp sensor error. This is typically caused by: Evaporator outlet sensor fault.
How do I fix LG error code CH03?
To fix LG error code CH03: Check/replace outlet thermistor. If the error persists after these steps, contact a qualified HVAC technician.
Is LG error code CH03 serious?
Error code CH03 (Indoor outlet temp sensor error) should be addressed promptly to prevent further damage to your LG system. Always turn off the unit if you notice unusual sounds, smells, or continued malfunction.