LG Mini Split Error Code CH06: How to Fix It
Medium 30-60 minutes Medium Severity
Verified June 2026
- Error Code
- CH06
- Brand
- LG
- Product Type
- mini_split
- Severity
- Medium
- DIY Difficulty
- Medium
- Estimated Fix Time
- 30-60 minutes
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Tools You'll Need
- Phillips screwdriver
- Multimeter
- Non-contact voltage tester
- Flashlight
How to Fix Error Code CH06
-
Turn off power and reset the system
Always turn off power at the circuit breaker before performing any maintenance on electrical appliances. -
Check indoor unit air filter
-
Inspect visible wiring connections
Ensure power is completely off and use a non-contact voltage tester to verify before touching any wires. -
Test sensor with multimeter
Only perform electrical testing if you're experienced with multimeters and HVAC systems. -
Check sensor mounting and thermal contact
-
Verify refrigerant line insulation
Parts You May Need
Indoor pipe temperature sensor
Check Price on Amazon
Wire nuts and electrical wire
Check Price on Amazon
Thermal paste or sensor mounting clamp
Check Price on Amazon
Air filter
Check Price on Amazon
Indoor pipe temperature sensor
Check Price on Amazon
Wire nuts and electrical wire
Check Price on Amazon
Thermal paste or sensor mounting clamp
Check Price on Amazon
Air filter
Check Price on Amazon
Indoor pipe temperature sensor
Check Price on Amazon
Wire nuts and electrical wire
Check Price on Amazon
Thermal paste or sensor mounting clamp
Check Price on Amazon
Air filter
Check Price on Amazon
Indoor pipe temperature sensor
Check Price on Amazon
Wire nuts and electrical wire
Check Price on Amazon
Thermal paste or sensor mounting clamp
Check Price on Amazon
Air filter
Check Price on Amazon
Indoor pipe temperature sensor
Check Price on Amazon
Wire nuts and electrical wire
Check Price on Amazon
Thermal paste or sensor mounting clamp
Check Price on Amazon
Air filter
Check Price on Amazon
Indoor pipe temperature sensor
Check Price on Amazon
Wire nuts and electrical wire
Check Price on Amazon
Thermal paste or sensor mounting clamp
Check Price on Amazon
Air filter
Check Price on Amazon
Indoor pipe temperature sensor
Check Price on Amazon
Wire nuts and electrical wire
Check Price on Amazon
Thermal paste or sensor mounting clamp
Check Price on Amazon
Air filter
Check Price on Amazon
Indoor pipe temperature sensor
Check Price on Amazon
Wire nuts and electrical wire
Check Price on Amazon
Thermal paste or sensor mounting clamp
Check Price on Amazon
Air filter
Check Price on Amazon
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When to Call a Professional
Call an HVAC technician if the error persists after basic troubleshooting, if you're uncomfortable working with electrical components, if the sensor needs replacement, or if you suspect refrigerant system issues. Professional diagnosis may be needed to determine if the sensor, wiring, or control board requires replacement.Frequently Asked Questions
What does LG mini split error code CH06 mean?
CH06 indicates the indoor pipe outlet temperature sensor is either open circuit or short circuited. This sensor monitors refrigerant temperature leaving the indoor unit to ensure proper system operation.
Can I continue using my LG mini split with CH06 error?
While the unit may continue to operate, it's not recommended. The faulty temperature sensor prevents proper system regulation, which can lead to inefficient operation, potential damage, and higher energy costs.
How much does it cost to fix LG mini split CH06 error?
If the issue is a loose connection or dirty filter, the fix is free. Professional sensor replacement typically costs $150-300 including labor, while control board replacement can cost $300-600 depending on the model.
Why does my LG mini split keep showing CH06 error?
Recurring CH06 errors often indicate a failing temperature sensor, damaged wiring, poor sensor mounting, or issues with the control board. Professional diagnosis is recommended for persistent problems.
How do I reset LG mini split after fixing CH06 error?
Turn off the unit at the circuit breaker for 5 minutes, then restore power. The error should clear automatically if the issue is resolved. Some models may require pressing and holding the reset button on the remote control.