LG Refrigerator Error Code Er 9

Er 9 on an LG refrigerator indicates an abnormal ice maker unit condition, specifically a problem with the ejection motor that pushes ice out of the mold. The fault can be caused by motor failure, a short circuit in the wiring harness, or a loss of proper motor input signal. The refrigerator's control board detects that the motor is not functioning correctly and logs this code, typically stopping ice production. Diagnosis starts by checking motor resistance at the CON9 connector terminals, which should read between 18 and 22 ohms.

Resetting the refrigerator by unplugging it for a few minutes may temporarily clear the Er 9 display, but the code will return if the underlying fault is not repaired. The error is triggered by a detected electrical or mechanical failure in the ice maker motor circuit, so a reset does not fix the root cause. If the code reappears after a reset, proceed with resistance testing at CON9 terminals 9 and 10 to identify the actual fault.

Repair costs depend on which component has failed. If only a wiring connection needs to be reseated or a harness repaired, costs can be minimal. Replacing the ice maker ejection motor or the full ice maker assembly typically costs between 80 and 250 dollars in parts depending on the model, with professional labor adding another 100 to 200 dollars. Replacing the main control board, if it is the source of the motor input failure, is generally the most expensive scenario, with parts and labor potentially ranging from 200 to 500 dollars or more.

Some causes of Er 9, such as a loose connector at CON9 or an ice jam in the ejector mechanism, can be resolved without special tools or replacement parts. However, if the ejection motor has failed or the wiring harness is shorted, the repair requires replacing components and working with electrical connectors inside the appliance. A basic multimeter is needed to check motor resistance at terminals 9 and 10 of the CON9 connector. If you are comfortable working with appliance wiring and using a multimeter, this is a manageable DIY repair.

The Er 9 code affects only the ice maker system, so the refrigerator's main cooling and freezing functions typically continue to operate normally. It is generally safe to continue using the refrigerator for food storage while the ice maker fault exists. However, the ice maker will likely not produce ice until the fault is corrected, and you should address a confirmed wiring short promptly to prevent potential damage to other components.