Samsung Refrigerator Error Code Ice Room Sensor

The Ice Room Sensor error means the control board is receiving a temperature reading from the ice compartment sensor that falls outside the valid range, specifically above 149°F (65°C) or below -58°F (-50°C). Because these temperatures are not physically possible inside an ice room under normal use, the error indicates a sensor failure, wiring fault, or connector problem rather than an actual temperature issue. The ice maker function is typically disrupted until the fault is corrected.

The refrigerator's main fresh food and freezer compartments will generally continue operating normally because they use separate sensors and controls. However, the ice maker may stop producing ice or behave erratically. It is best to address the error promptly to avoid any secondary issues related to ice maker operation, such as water leaks from a stuck cycle.

If the thermistor is the failed component, the part itself is generally inexpensive, typically in the range of $15 to $40, and the repair is straightforward. If professional labor is required, expect to add $80 to $150 for a service call and diagnosis. A Main PCB replacement is significantly more expensive, with parts and labor potentially totaling $200 to $450 depending on the model and service provider.

A knowledgeable DIYer can handle several of the likely causes. Start by checking the connector at CN78 on the Main PCB for looseness or corrosion and reseat it if needed. If the connector is fine, use a multimeter to test the voltage at CN78-10 to CN78-1 and check the thermistor's resistance directly. Replacing a thermistor is a straightforward repair, but if the Main PCB itself is faulty, professional service is recommended.

A power reset may temporarily clear the error code from the display, but the fault will return if the underlying hardware problem has not been repaired. Resetting does not fix a failed thermistor, broken wire, or faulty connector. Use a reset only to confirm whether a transient electrical event caused the code, not as a long-term solution.