LG Air Conditioner Error Code E462

E462 indicates a primary current over trip error, meaning the system detected that the compressor was drawing more current than the protection threshold allows. The current protection control responds by shutting down the compressor to prevent damage to the motor or drive circuitry. The fault must be diagnosed and corrected before the compressor will operate again.

No. When E462 is active, the current protection control has already shut down the compressor, so the unit will not provide cooling. Attempting to force the system to restart repeatedly without resolving the root cause risks damaging the compressor or inverter board, which can turn a relatively minor repair into a costly one. Address the fault before resuming normal operation.

Repair costs vary significantly depending on the root cause. Correcting a configuration setting or tightening wiring connections may only cost a service call fee, typically in the range of $75 to $150. Replacing an inverter board generally runs $200 to $600 including parts and labor. Compressor replacement is the most expensive outcome, often ranging from $600 to $1,500 or more depending on unit size and labor rates.

Some causes of E462 are accessible to a knowledgeable DIYer, such as checking the supply voltage at the disconnect or reviewing the overcurrent option setting if you have access to the controller configuration. However, testing compressor windings, inspecting the inverter board, and working inside the electrical cabinet involves dangerous voltages and is best handled by a qualified technician. If basic checks do not resolve the fault, professional service is strongly recommended.

A power reset may clear the fault code temporarily and allow the unit to attempt a restart, but if the underlying cause of the overcurrent condition is still present, the error will return, often quickly. Resetting without diagnosing the root cause can also cause additional wear on the compressor. A proper fix requires identifying and correcting the source of the excessive current draw.