Samsung Refrigerator Error Code Ice Maker(F) Sensor Error

This error means the freezer ice maker temperature sensor is reporting a reading outside the valid range of -58°F to 149°F, which signals a sensor circuit problem rather than an actual temperature issue. Causes include a loose connector, sensor separation from its housing, a broken wire in the harness, or a failed thermistor. The Main PCB detects the fault by monitoring voltage at connector CN90 pins 8 and 9. Ice production will typically stop until the fault is resolved.

The refrigerator's cooling and freezing functions are generally not affected by this sensor error, so food safety is not immediately compromised. However, ice production may be suspended or unreliable while the fault is active. It is still a good idea to address the error promptly to prevent the ice maker from running in an uncontrolled state.

If only the ice maker thermistor needs replacement, parts typically cost in the range of $15 to $60 depending on the model. A wiring harness repair or replacement may add $20 to $80 in parts. If a Main PCB replacement is required, parts alone can range from $100 to $300 or more. Adding a professional technician's labor, total repair costs can range from $100 to $400 depending on what component has failed and your location.

A knowledgeable DIYer can handle several steps: inspecting and reseating the sensor connector, checking the wiring harness for visible damage, and confirming the sensor is properly seated in its housing. Measuring voltage at Main PCB CN90 pins 8 and 9 requires a multimeter and some comfort working near live circuits. If the sensor or harness needs replacement, those parts are generally accessible, but Main PCB replacement is more involved and may warrant a professional technician.

A power reset may temporarily clear the error code, but the fault will return if the underlying cause has not been repaired. If the sensor is disconnected, shorted, or failed, the Main PCB will detect the out-of-range signal again as soon as it resumes monitoring. A reset is useful for confirming whether the fault is intermittent, but it is not a substitute for diagnosing and correcting the sensor circuit problem.