Written by
Maya Chen Editorial TeamPublished October 20, 2026
Error codeAd
ApplianceRefrigerator
Quick answer
An Ad error on an LG refrigerator shows when the door motor does not reach its position within 5 seconds.
Model compatibility: LG reuses codes across series and model years, so Ad may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Door motor failed to reach position within 5 seconds.
Ad appears on an LG refrigerator when the door motor does not move to its maximum or home position within 5 seconds.
Owner steps
None are listed. The refrigerator requires a repair service.
Applies to
LG refrigerators with a door motor.
Related codes
AS involves the auto door motor and the reed switch.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your LG appliance?
Book a specialist visit for a clear estimate and approval before any repair.