LG Air Conditioner Error Code CH60

CH60 on an LG air conditioner indicates an EEPROM checksum error, meaning the unit's onboard memory has detected corrupted or unverifiable data. The EEPROM chip stores critical configuration and calibration data that the control board reads at startup. When the checksum calculation does not match the stored value, the system triggers CH60 and may shut down or refuse to operate normally.

A power reset may temporarily clear CH60 if the error was caused by a one-time power interruption during a write cycle, but it will not fix underlying EEPROM corruption. If the checksum error is due to genuinely corrupted data on the memory chip, the fault will return on the next startup. Persistent CH60 after a reset indicates the board needs reprogramming or replacement.

Repair costs vary depending on whether the main control board needs reprogramming or full replacement. Board replacement for LG air conditioners typically ranges from $150 to $400 or more for parts alone, with additional labor costs depending on the technician and unit type. If the unit is under warranty, the repair may be covered, so checking warranty status before authorizing any repair is recommended.

In most cases, CH60 is not a DIY-repairable fault because it involves the EEPROM chip or main control board, which require specialized programming tools or board replacement. A simple power reset is worth attempting first, but if the error returns, a qualified technician will need to inspect and likely replace the main control PCB. Attempting to repair or resolder the EEPROM without proper equipment risks further damage.

It is not advisable to operate the unit while CH60 is active. Because the EEPROM stores core configuration data, a corrupted memory section means the control board may not have accurate operating parameters, which can lead to improper operation or additional component stress. The system may also prevent startup entirely as a protective measure.