LG Refrigerator Error Code 23

Error code 23 on an LG refrigerator indicates a condenser fan motor fault, labeled C-FAN ERROR by the control system. The code is triggered when the main PCB detects a problem with the feedback signal from the condenser fan, a disconnected motor wire, or a motor that has failed. The condenser fan is critical for removing heat from the refrigerant system, and a failure here will reduce the refrigerator's ability to maintain proper temperatures.

Continuing to use the refrigerator with an active error 23 is not recommended for extended periods. Without a functioning condenser fan, heat builds up in the sealed system, which can cause compressor overheating and potentially shorten the life of other components. Food safety may also be at risk if internal temperatures rise beyond safe limits.

A power reset by unplugging the unit for a few minutes may temporarily clear the error display, but if the underlying fault is still present, code 23 will return once the control board resumes monitoring the condenser fan circuit. A reset is useful for ruling out a one-time glitch, but persistent reappearance of the code means the wiring, connectors, or motor need to be physically inspected and tested.

Some causes of error code 23 are accessible to a confident DIYer. Checking and reseating the wiring connector at CN72 on the main PCB, and inspecting the harness for visible damage, requires no special tools. Measuring the voltage at CN72 pins 7 and 10 requires a multimeter. Replacing the condenser fan motor is a moderate repair involving disconnecting power, accessing the motor assembly, and installing a compatible replacement.

Repair costs depend on the root cause. If the fix is simply reseating a loose connector, there may be no parts cost at all. A replacement condenser fan motor typically ranges from $30 to $100 in parts. If a technician is hired for diagnosis and repair, total costs including labor generally range from $100 to $250, depending on local labor rates and whether additional components need replacement.