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

This error means the right zone of your U-Line ice maker has been running 10 or more degrees above its set point temperature for over 12 consecutive hours. It indicates a sustained cooling failure rather than a brief temperature spike. The most common causes involve the compressor, the evaporator fan, or the relays and control board outputs that operate those components.

A reset may temporarily clear the error code from the display, but it will not resolve the underlying problem. If the compressor, evaporator fan, or related relay is not functioning correctly, the zone temperature will rise again and the code will return. The fault must be identified and repaired for the error to be permanently cleared.

Repair costs vary depending on which component has failed. Evaporator fan motor replacements typically fall in the range of $100 to $250 including parts and labor. Relay replacements are generally less expensive, often $75 to $175. Compressor replacement is the most costly repair, commonly ranging from $400 to $800 or more depending on the model and labor rates in your area. A diagnostic service call to identify the faulty component is usually required first.

Some basic checks are within reach of a knowledgeable DIYer, such as inspecting for blocked vents, cleaning the condenser coil, and confirming the unit has adequate clearance for airflow. However, diagnosing compressor operation, testing relay continuity, and measuring DC control board outputs require electrical testing equipment and a working knowledge of appliance circuits. If those components are involved, a qualified appliance technician is recommended.

You should stop relying on the ice maker for ice production while this error is active, as the right zone is not maintaining safe temperatures. Ice quality and yield will be compromised, and continued operation without repair could place additional strain on components like the compressor. It is best to address the fault promptly and avoid consuming ice produced during the fault period.