Samsung Refrigerator Error Code Ice Maker Sensor Error

This error means the main control board has detected a problem with the ice maker temperature sensor circuit. The board monitors voltage at connector CN30 pins 8 and 13, and triggers the error when the reading falls outside 1.0V to 4.5V, which corresponds to a sensed temperature below -58°F or above 149°F. The fault can be caused by a disconnected connector, damaged wiring, a short circuit, or a failed thermistor.

The refrigerator's food storage compartment will generally continue to cool normally, since this error is specific to the ice maker sensor circuit. However, the ice maker will likely stop producing ice until the fault is resolved. It is safe to leave the refrigerator running, but do not ignore the error long-term as underlying wiring faults can worsen over time.

If only the ice maker thermistor needs replacement, parts typically cost between $20 and $60, and the total repair including labor from a technician usually falls in the $100 to $200 range. If the wiring harness is damaged and needs replacement, costs can be somewhat higher. A failed main PCB is the most expensive scenario, with parts and labor potentially reaching $300 to $500 or more depending on the model.

Many cases of this error are caused by a loose connector at CN30 on the main PCB, which a knowledgeable DIYer can reseat without tools or parts. If the connector is secure, diagnosing the fault further requires a multimeter to check voltage at CN30 pins 8 and 13 and continuity testing along the wiring harness. Replacing the ice maker thermistor is a manageable repair for someone comfortable accessing the ice maker assembly, but if the main PCB itself is at fault, professional service is recommended.

A reset may temporarily clear the error code from the display, but it will return as soon as the control board re-reads an out-of-range voltage at CN30. Because the error is caused by a physical fault in the sensor circuit, such as a disconnected wire, a failed thermistor, or a short, the underlying problem must be corrected before the error will clear permanently.