Samsung Refrigerator Error Code LOW·Mid

LOW·Mid indicates a failure of the R2 sensor, which is the temperature sensor in the right side of the refrigerator compartment. The control board has detected a temperature reading above +50°C or below -50°C from that sensor, which is outside any physically valid range. This almost always means there is a wiring or connection problem rather than an actual extreme temperature. Checking the sensor connector, wiring continuity, and the sensor's own resistance are the correct first steps.

A power reset may temporarily clear the displayed code, but the error will return as soon as the control board reads another out-of-range value from the R2 sensor. The underlying cause, whether a loose connection, broken wire, or failed sensor, must be physically corrected before the code will stay clear. Resetting without repairing is not a lasting solution.

If only the wiring connection needs to be reseated or cleaned, there may be no parts cost at all, just your time. Replacing the R2 temperature sensor typically costs between $15 and $60 for the part depending on the model. If a professional technician is needed, expect a total repair cost in the range of $100 to $250 including the service call, labor, and the part.

Yes, this repair is within reach for a DIYer who is comfortable using a multimeter. Start by inspecting the R2 sensor connector on the right wall of the refrigerator compartment and pressing it firmly into place. If reseating the connector does not clear the code, test the wiring for continuity and then measure the sensor's resistance to determine whether the sensor itself needs replacement. Replacing the sensor involves unplugging the old connector and installing the new sensor, which does not require refrigerant handling or special tools.

When the R2 sensor is not functioning, the control board loses accurate temperature feedback for the right side of the refrigerator compartment, which can affect cooling regulation and put food safety at risk. It is best to address the fault promptly. If the refrigerator is still running and the compartment feels cold, you can monitor it with a standalone thermometer in the short term, but prolonged operation without a working sensor is not recommended.