LG Dryer Error Code AE

The AE code on an LG dryer indicates a compressor error, meaning the system has detected that the compressor is failing to drive. Because the compressor is essential to the heat pump drying process, the dryer will not operate while this fault is active. Diagnosis typically starts with checking wiring connections and escalates through the harness, main PCB, and base assembly if needed.

No. When the AE code is active, the dryer will not operate, so continued use is not possible until the fault is cleared. Do not attempt to bypass or ignore the error, as the code is a protective response from the control system to prevent further damage to the compressor or related components.

A power reset may temporarily clear the AE code, but if the underlying fault with the compressor, harness, or PCB remains, the error will return when the dryer attempts to start. Resetting the unit is not a fix and should only be used as part of the diagnostic process to confirm whether the fault is persistent or intermittent.

The first diagnostic step, checking the compressor connector for loose or corroded contact, is something a careful DIYer can attempt. However, if the fault requires replacing the main PCB or the base assembly, those repairs involve more technical skill and should be handled by a qualified technician. Working on heat pump components also involves a sealed refrigerant system, which adds complexity.

Repair costs depend on which component is at fault. A harness replacement is generally the least expensive fix, while a main PCB replacement typically falls in a moderate cost range. Replacing the base assembly, which includes the compressor, is the most costly repair and can range into several hundred dollars including labor. Getting a diagnostic from a technician first will help clarify which part is actually at fault.