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Error code reference

LG Air Conditioner Error Code CC

PSC error

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What the CC error code actually means

Your LG air conditioner is showing a CC error because it detected a problem with a key electrical component called a run capacitor, which helps the motors start and run smoothly. This means the system has shut itself down to prevent damage to the compressor or fan motor. A technician will need to inspect and likely replace the capacitor or check related wiring to get the unit running again.

Diagnostic procedure

The full CC procedure

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1
Confirm the fault
Power cycle the unit: switch off the breaker for 60 seconds, then restore power. If the code returns, the fault is persistent and the procedure below isolates the cause.
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Most common causes of CC

Ranked by how often they cause this code
  1. 1Failed or degraded run capacitor
  2. 2Wiring fault in the PSC circuit
  3. 3Failing compressor motor
  4. 4Failing fan motor
  5. 5Defective control board

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Questions people ask about CC

What does CC mean on a LG air conditioner?
The CC code on an LG air conditioner indicates a PSC (Permanent Split Capacitor) fault. This means the control board has detected a problem in the capacitor circuit that supports the compressor or fan motor operation. The system shuts down to protect the motors from running under abnormal electrical conditions.
Is the CC error on an LG air conditioner dangerous to ignore?
Yes, continuing to attempt to run the unit with a PSC fault can damage the compressor or fan motor by forcing them to operate without proper capacitor support. The system shuts down specifically to prevent this kind of damage. Addressing the fault promptly helps avoid a more costly compressor replacement.
How much does it cost to repair a CC error on an LG air conditioner?
Repair costs vary depending on which component has failed. A run capacitor replacement is typically the least expensive fix, often ranging from $75 to $200 including labor. Fan motor replacement tends to fall in the $150 to $400 range, while compressor replacement or control board replacement can cost significantly more, often between $400 and $1,200 or higher depending on the unit.
Can I fix the CC error on my LG air conditioner myself?
Some aspects of diagnosing this error require working inside the electrical cabinet of the unit, where capacitors can retain a dangerous charge even after power is disconnected. If you are comfortable safely discharging a capacitor and using a multimeter, you can test capacitance and inspect wiring. However, compressor and control board repairs are best left to a qualified technician.
Will resetting my LG air conditioner clear the CC error?
A power reset may temporarily clear the CC code, but if the underlying fault in the PSC circuit is still present, the error will return once the unit attempts to run again. A reset is useful for ruling out a transient fault, but a persistent CC code requires physical inspection and testing of the capacitor, wiring, and motors.

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