U-Line Refrigerator Error Code 3 Flashes

On U-Line refrigerators with the CLR2060 control board, 3 flashes indicates that the board has detected two simultaneous faults: an open overflow protection circuit and an open or out-of-range thermistor. Both conditions must be diagnosed and resolved for the unit to return to normal operation. This is a compound error code specific to the CLR2060 board.

Continuing to use the refrigerator while this error is active is not recommended. Because the thermistor is open or out of range, the control board cannot confirm that the unit is maintaining safe temperatures, meaning food spoilage is a risk. The overflow protection circuit fault also means a water-related safety function is not operating correctly.

Repair costs depend on which components need to be replaced. Thermistor replacement is typically on the lower end of the cost range, while CLR2060 control board replacement is more expensive, often ranging from several hundred dollars for parts alone. Adding professional labor costs, total repair expenses can range from around $100 to $400 or more depending on the diagnosis and parts required.

Start by inspecting the wiring harness connections at both the overflow protection sensor and the thermistor for any loose, disconnected, or corroded connectors. Test thermistor resistance with a multimeter to confirm it falls within the acceptable range, and check continuity through the overflow protection circuit. If sensors and wiring are intact, the CLR2060 control board itself may need to be replaced.

A simple power reset is unlikely to permanently clear the 3-flash error because the underlying hardware faults in the overflow protection circuit and thermistor will still be present when power is restored. The board will re-detect both open conditions and the error will return. The root cause in both circuits must be repaired to resolve the code.