Written by
Clara Bennett Appliance Care EditorPublished September 3, 2026Updated October 20, 2026
Content status:
Verified
Error codeEVAPORATOR LOW TEMPERATURE
ApplianceBlast Chiller
Quick answer
EVAPORATOR LOW TEMPERATURE means the evaporator is too cold compared with the setpoint, limited by the LBT parameter. The manual calls it non-critical.
Model compatibility: U-Line reuses codes across series and model years, so EVAPORATOR LOW TEMPERATURE may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Evaporator temperature too low compared with setpoint (differential parameter LBT); non-critical.
What EVAPORATOR LOW TEMPERATURE means
The evaporator temperature is too low when compared with the current setpoint temperature. A differential parameter, LBT, states the maximum gap that should exist between the two.
The alarm may show when the setpoint changes during a multistep automatic recipe while the evaporator temperature stays low for some minutes. The manual calls it non-critical.
About the LBT setting
The manual says the alarm can be avoided by setting LBT high. That setting is in the password-protected service menu, which is meant for technicians.
Models
UCBF432, UCBF532, UCBF632, UCBF559 and UCBF659. The manual spells the code EVPORATOR LOW TEMPERATURE in places.
If this alarm keeps coming back during recipes, call (310) 879-5776. Tell us the model, the recipe you were running and what the display said. More on refrigeration service is on the linked page.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your U-Line appliance?
Book a specialist visit for a clear estimate and approval before any repair.
U-Line products are compact, built-in, and often visually similar across generations. Effective repair starts with the exact model, the symptom you can…
