Samsung Refrigerator Error Code Ice Maker Sensor Error (Cubed)

This error code means the temperature sensor in the cubed ice maker has failed or is reporting a value outside the acceptable range. The main PCB monitors this sensor through connector CN90 pins 14 and 26, where the voltage should fall between 1.0V and 4.5V during normal operation. When the signal falls outside that window, the refrigerator logs the fault and may disable the cubed ice maker until the issue is corrected.

The refrigerator itself will generally continue cooling and the freezer will remain operational. However, the cubed ice maker may be suspended or unreliable while the sensor fault is active. There is no immediate safety hazard to food storage, but you should address the error promptly to restore full ice maker function and prevent any secondary issues.

A reset may temporarily clear the error code from the display, but if the underlying sensor, wiring, or connector fault still exists, the code will return once the refrigerator runs its diagnostics again. Resetting can be a useful step to confirm whether the fault is intermittent or persistent, but it does not fix the root cause. A proper voltage check at CN90 pins 14 and 26 is needed to determine whether a physical repair is required.

A knowledgeable DIYer can perform basic diagnostics, including inspecting the wiring harness for damage and checking the connector at CN90 for corrosion or loose pins. Measuring the voltage at CN90 pins 14 and 26 with a multimeter will tell you whether the sensor circuit is open, shorted, or within range. If the thermistor or wiring needs replacement, the repair is straightforward but does require accessing the ice maker assembly and potentially removing components in the freezer.

If only the thermistor or sensor harness needs replacement, parts typically cost anywhere from $15 to $60 depending on the specific assembly required. If the full ice maker module must be replaced, parts alone can range from $80 to $200 or more. Adding professional labor, total repair costs commonly fall between $100 and $350, depending on the diagnosis and parts involved.