Beverage-Air Refrigerator Error Code Con: Condenser Alarm

What does Beverage-Air error code Con mean?

The Danfoss controller watches the condenser temperature with its own sensor, because the condenser is where the system gets rid of heat. When that temperature goes outside the allowed range, the controller shows Con. A hot condenser usually means dust or lint is blocking airflow, a fan has stopped, or the cabinet sits too close to a wall or another unit. A cold condenser can come from a sensor that reads wrong or from very cold surroundings. The manual lists a dirty condenser coil, a condenser fan not running, poor ventilation around the cabinet, and a condenser sensor reading incorrectly. The first three lead to real heat and strain on the compressor, and the last can produce an alarm with nothing wrong in the cooling. Take a reading with a thermometer to see whether the condenser trouble is hurting the box. If the box is holding temperature, the cabinet has some time. If it is warming, the condenser is already costing capacity.

Affected models and control systems

This applies to Beverage-Air cabinets with a Danfoss controller, such as the UCF27HC freezer and matching refrigerators, prep tables and bar coolers. Cabinets with an Eliwell controller 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

• Con shows on the controller display
• The condenser area feels very hot or the fan is not turning
• The box temperature creeps up while Con is on
• The compressor runs hot and almost continuously

Possible causes

Listed in Beverage-Air's documentation

• Dirty condenser coil
• Condenser fan not running
• Poor ventilation around the cabinet
• Condenser sensor reading incorrectly

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

• A condenser coil coated with flour or grease dust in a bakery or kitchen, slowing airflow
• A cabinet pushed flush against a wall after a remodel so there is no air gap
• A condenser fan with a seized bearing after years of running in a warm room

Safe checks before calling for service

How a technician diagnoses error code Con

1. Read the code and note whether the condenser reading is high or low.
2. Inspect the condenser coil and clean it properly.
3. Check the fan motor and blade.
4. Check ventilation and ambient temperature around the cabinet.
5. Compare the condenser sensor with a reference thermometer.
6. Replace the fan or sensor as the test shows.

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.