Beverage-Air Refrigerator Error Code Hi: High Temperature Alarm

What does Beverage-Air error code Hi mean?

The Danfoss controller compares the cabinet air with a high alarm limit. When the temperature stays above it past the delay, the display blinks Hi along with the highest temperature reached. That number tells you how bad the excursion was, which is useful when you must decide what to do with the food. The cabinet keeps running, so the alarm is a warning that heat is getting in or not leaving, and product may be at risk. The manual lists a door or drawer left slightly open, a dirty condenser that cannot reject heat, an iced evaporator coil that blocks cold air from reaching the box, and a fan that has stopped moving air across the coil. The first is a habit, the second a maintenance matter, and the last two are cooling problems that need a technician. A thermometer in the food, compared with the number on the display, shows whether the food itself is warm or only the air is.

Affected models and control systems

This applies to Beverage-Air cabinets with a Danfoss controller, including current R290 models such as the UCR27AHC undercounter, the WTR48AHC worktop and the HR2HC-1S Horizon reach-in, and the matching freezers, prep tables and bar coolers. Eliwell-controlled cabinets use different codes.

Code numbers and their meaning can change between control generations. We match the full model and control before acting on a code.

What you may notice

• Hi blinks with a temperature on the display
• Product feels warmer than normal
• The compressor runs for a long time
• The alarm follows a large restock

Possible causes

Listed in Beverage-Air's documentation

• Door or drawer left slightly open
• Dirty condenser that cannot reject heat
• Iced evaporator coil blocking cold air
• Fan stopped moving air across the coil

Other likely causes — what usually sits behind error code Hi on this control. A technician confirms which one it is before any part is replaced.

• A drawer that sticks a fraction open on its slides so warm air leaks in all shift
• A condenser clogged with kitchen grease dust that holds the cabinet above the limit
• An evaporator fan that has stopped so cold air never leaves the coil

Safe checks before calling for service

How a technician diagnoses error code Hi

1. Read the display and note the highest temperature shown.
2. Compare the display with a reference thermometer.
3. Check the condenser, the condenser fan and the evaporator fan.
4. Look for frost on the evaporator and check defrost.
5. Check the alarm limit and delay settings.
6. Fix the measured cause and confirm the cabinet pulls down.

How error code Hi differs from similar codes

Lo is the matching low temperature alarm on the same Danfoss controller.

Technical reference

Document

Beverage-Air 809-175A UCRF manual (Rev D), message table and Danfoss alarm table

Edition

809-175A Rev. D. 03/10/2026 (footer: Rev. 03/26)

Models / control

Danfoss controller

Section

Using the Unit - Refrigerator Section (Eliwell) message table, printed p. 20; Freezer Section Danfoss alarm code table, printed p. 19

Checked

October 2026

We use the maker's document to read the code and do not reproduce it. Always confirm the complete model and control before applying these steps.