LG Refrigerator Error Code CSE

The CSE code on an LG refrigerator indicates that the temperature sensor for the Multi-use room, also called the Magic room, has an open or short circuit condition. The control board is detecting an abnormal signal from that sensor, meaning it cannot accurately read the temperature in that compartment. This can affect the performance and temperature control of that flexible storage zone.

The CSE error specifically affects the Multi-use room zone, so the main refrigerator and freezer compartments may continue operating normally. However, the Multi-use room may not maintain accurate temperatures, which could lead to food spoilage in that section. It is advisable to avoid storing perishables in that compartment until the fault is resolved.

A power reset may temporarily clear the CSE code, but the error will return if the underlying sensor or wiring fault has not been corrected. Unplugging the refrigerator for a few minutes and restoring power resets the control board, but the code will reappear once the board re-detects the abnormal sensor signal. A permanent fix requires identifying and correcting the open or short circuit condition in the sensor circuit.

A knowledgeable DIYer can attempt to resolve this by inspecting and reseating the sensor connectors, which requires no special tools. If the connector is secure and the error persists, testing the sensor's resistance with a multimeter is the next step. Replacing the sensor is a moderately straightforward repair, though accessing the sensor may require removing interior panels in the Multi-use room compartment.

If the repair only requires reseating a connector, there is no parts cost involved. Replacing the temperature sensor itself typically involves a parts cost in the range of $15 to $50 depending on the specific model. If a technician is needed for diagnosis and repair, labor costs will add to that total, generally bringing the full repair into the $100 to $250 range.