Er AD
LG Refrigerator
Severity: MinorWhat Does This Error Mean?
Er AD on an LG refrigerator means the auto-close door motor has a fault. Some LG models have a motorized door assist system that helps gently close the refrigerator door if it is left slightly ajar. When the motor that powers this mechanism fails or its circuit has a problem, Er AD appears. The refrigerator continues to cool normally. The door will still close — it just will not have the auto-close assist feature.
Affected Models
- LRMVS3006S
- LRFXS2503S
- LRMDC2306S
- LG Door-in-Door French door models
- LG InstaView models with auto-close door feature
Common Causes
- The auto-close door motor has worn out or failed after years of use
- The wiring harness to the door motor has been pinched or damaged in the door hinge area
- The door motor mechanism is obstructed by food packaging, a container, or debris preventing it from moving
- The motor control circuit on the main control board has a fault
- The door hinge pin or motor linkage has broken or come apart
How to Fix It
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Check that nothing is blocking the door from closing fully. A container placed too close to the door edge, a bag of produce hanging over the shelf, or a food item sticking out can physically prevent the auto-close mechanism from operating.
The auto-close motor provides gentle assistance — it cannot overcome a physical obstruction. Even a small item blocking the door path will cause the motor to fault.
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Open and fully close the refrigerator door manually several times. Listen and feel for any unusual stiffness, grinding, or resistance in the hinge area. Normal door operation should be smooth and easy.
Stiffness in the hinge can mean a bent hinge pin or a broken door linkage. These are visible upon close inspection of the upper and lower hinge areas.
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Power cycle the refrigerator. Unplug it from the wall, wait 60 seconds, then plug it back in. A soft reset sometimes clears Er AD if the error was triggered by a temporary motor stall.
If Er AD clears after the reset and does not return, the motor had a momentary stall — likely from an obstruction that has since been removed.
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If Er AD returns after the reset, check your LG refrigerator's warranty. Go to lg.com/us/support and enter your model and serial number. Auto-close motor faults are covered under the standard 1-year warranty.
The serial number sticker is located inside the refrigerator on the upper left wall.
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If out of warranty, contact an LG-authorized technician. They will test the motor and its wiring. The auto-close motor assembly is a bolt-on unit and typically takes 30–60 minutes to replace.
While waiting for repair, the refrigerator operates completely normally. Just remember to close the door manually — it will not auto-close until the motor is repaired.
When to Call a Professional
Er AD is a minor error that does not affect cooling. Auto-close door motor replacement typically costs $75–$200 including parts and labor. If the main control board is at fault, costs rise to $200–$400. Check warranty status first — LG's 1-year parts and labor warranty covers this. Call LG at 1-800-243-0000 to check coverage.
Frequently Asked Questions
Will my LG refrigerator still cool with Er AD?
Yes — Er AD only affects the auto-close door motor. The compressor, fans, and all cooling systems continue to work normally. You just need to close the door manually and make sure it is fully closed. The refrigerator is completely safe to use.
How do I know if my LG model has the auto-close door feature?
Look at the bottom hinge of the refrigerator door. If there is a small motor assembly with a gear or cam, your model has auto-close. You can also check your model number on lg.com — search for your model's spec sheet and look for 'auto-close door' in the features list.
Can I ignore Er AD and keep using the refrigerator?
Yes, safely. Er AD is a minor convenience feature fault, not a cooling system fault. Just be aware that the door will not automatically close if left slightly ajar. Make sure everyone in the household knows to close the door firmly. Repair it when it is convenient — there is no urgency.