U-Line Ice Maker Error Code Temp Hi 12H+

This code means the temperature inside the ice maker zone has been more than 10°F above the set point for over 12 hours continuously. It indicates a sustained cooling failure rather than a brief temperature spike. The compressor, evaporator fan, or the relays and DC outputs controlling them are the primary areas to investigate.

A power reset may clear the displayed code temporarily, but the error will return if the underlying cause has not been corrected. Because the fault requires more than 12 hours of sustained over-temperature conditions to trigger, it reflects a real mechanical or electrical problem that a reset alone will not resolve. Always diagnose and repair the root cause before relying on a reset.

Repair costs depend on which component has failed. Cleaning a blocked condenser may cost little to nothing if done yourself. Replacing an evaporator fan motor or relay typically falls in the range of $100 to $300 including parts and labor. A compressor replacement is the most expensive scenario, often ranging from $400 to $800 or more depending on the model and local labor rates. A refrigerant repair adds leak detection and recharge costs on top of any parts needed.

Some causes, such as a blocked condenser coil or restricted airflow, can be addressed without professional help by cleaning the condenser and ensuring the unit has proper clearance. However, diagnosing and replacing a failed compressor, evaporator fan motor, or control board relay typically requires electrical testing tools and comfort working with appliance electronics. Refrigerant issues must be handled by a certified technician.

No. If the zone has been more than 10°F above set point for over 12 hours, the unit is not maintaining proper temperatures for ice production or storage. Ice produced or stored under these conditions may not meet safe temperature standards. The unit should be taken out of service until the fault is diagnosed and repaired.