U-Line Refrigerator Error Code R Evap T Short

R Evap T Short means the control board has detected a short circuit in the right evaporator thermistor circuit. The thermistor is a temperature sensor located near the right evaporator coil, and a short causes it to send an abnormally low resistance reading to the control board. This prevents accurate temperature monitoring and can interfere with defrost and cooling operation. The fault is typically caused by damaged wiring, a failed thermistor, or moisture in the connector.

Operating the unit with an active R Evap T Short error is not recommended for extended periods. The control board cannot accurately read evaporator temperature on the right side, which may cause improper defrost timing or reduced cooling performance. Food safety could be at risk if temperatures are not maintained correctly. Address the fault as soon as practical to prevent potential food spoilage or further system issues.

A simple power reset may temporarily clear the error code, but the fault will return if the underlying cause has not been corrected. The control board will re-detect the short circuit in the thermistor circuit as soon as it runs a self-check. Clearing the code without repairing the wiring or replacing the failed thermistor is not a fix. A permanent resolution requires identifying and correcting the cause of the short.

A knowledgeable DIYer can attempt this repair by first inspecting the thermistor cable for visible damage like pinching, chafing, or connector corrosion. If the wiring looks intact, the thermistor can be tested with a multimeter for a near-zero resistance reading, which confirms it needs replacement. Replacing the thermistor or repairing a damaged harness is generally straightforward, but gaining access to the evaporator area may require removing interior panels.

If only the thermistor needs replacement, parts typically cost in the range of $20 to $60 depending on the specific model. Professional labor to diagnose and replace the part can add $100 to $250 or more depending on your area and the technician's rates. If the wiring harness is damaged, repair costs vary based on the extent of the damage. Control board replacement, if ultimately needed, is the most expensive scenario and can range from $150 to $400 or more for parts alone.