U-Line Refrigerator Error Code E5

E5 means that Thermistor 1, the primary compartment temperature sensor, has been reading more than 10°F above the set-point for over 12 consecutive hours. The unit is failing to maintain its target temperature for a sustained period. If the refrigerator was recently plugged in, allow 24 hours before drawing conclusions. If it was already in normal operation, a refrigeration system issue is the most likely cause.

Start by allowing the unit to run for 24 hours if it was recently plugged in or moved. If the error persists, inspect the condenser coils for dirt or debris and verify that all fans are running. If basic checks do not resolve the issue, the refrigeration system itself likely requires diagnosis by a qualified technician, as a sealed system repair involving refrigerant is not a DIY procedure.

Repair costs vary widely depending on the root cause. A condenser cleaning is typically a low-cost service call, while an evaporator fan motor replacement may run anywhere from $100 to $300 including parts and labor. If the sealed refrigeration system requires repair, such as refrigerant recharge or compressor replacement, costs can range from $300 to $700 or more depending on the specific issue and labor rates in your area.

Unplugging the unit and plugging it back in may temporarily clear the error display, but the fault will return if the underlying problem is not resolved. Because E5 requires a sustained 12-hour temperature failure to trigger, it will reappear quickly if the refrigeration system or sensor is still not functioning correctly. A reset alone is not a repair.

Yes, because E5 indicates the compartment temperature is significantly above the set-point, perishable food stored inside may be at risk if the condition has persisted for an extended time. The FDA recommends discarding perishable items that have been held above 40°F for more than two hours. Until the fault is resolved, transfer temperature-sensitive items to another refrigerator.