LG Refrigerator Error Code Er IM Tray

Er IM Tray indicates that the LG refrigerator's control system has detected an abnormal signal from the icemaker tray sensor in the freezer compartment. The fault is triggered by either a short circuit (resistance too low) or an open circuit (resistance too high or no continuity) in the sensor or its wiring. As a result, the icemaker cannot properly monitor ice tray temperature and will typically stop producing ice. Diagnosing the issue starts with checking the sensor connector for damage or poor contact.

A reset may temporarily clear the code, but it will return if the underlying fault in the tray sensor circuit has not been corrected. To permanently resolve the error, the faulty component, whether the sensor, connector, or wiring, must be identified and repaired or replaced. Resetting without addressing the root cause will not restore normal icemaker operation.

If the repair only requires reseating a connector, the cost can be minimal or nothing beyond the time spent. Replacing an icemaker tray thermistor sensor typically involves parts costs in the range of $15 to $50 depending on the specific model. If the full icemaker assembly or control board needs replacement, costs can range from $100 to $300 or more for parts and labor combined.

A knowledgeable DIYer can often resolve this error by inspecting and reseating the icemaker tray sensor connector, which requires no special tools. If the connector looks fine, using a multimeter to test the thermistor's resistance will confirm whether the sensor has failed and needs to be replaced. Wiring harness repairs or control board replacements are more advanced tasks that may be better suited for a qualified technician.

The refrigerator's cooling and food preservation functions are generally not affected by this error, so food safety is not an immediate concern. However, the icemaker will likely be non-functional or unreliable while the fault is active. It is best to address the issue promptly to restore full icemaker operation and prevent any further wear on related components.