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D. Alarms Safeties
Alarm signals are designed to protect the appliance and the beverage product. These
alarms give information or warnings in the event the appliance is operating out of
acceptable parameters. Should one of the alarms occur, follow the instructions in the
table below to address the alarm. The alarm code flashes once every second with
audible alarm. To silence the alarm, press and release the “SET” button.
1. Controller Module with Integrated Display
Alarm Signals
Alarm Code
Problem
Corrective action/Reset Details
E0
Cabinet thermistor
Malfunction Alarm
Cabinet thermistor has
failed
Beeps continually, To silence the alarm, press and
release the “SET” button.
Appliance cycles 20-min. on, 15-min. off.
HI
High Temperature Alarm
Cabinet temperature has
remained above 57°F
(13.9°C) for more than
2hrs
Beeps continually, To silence the alarm, press and
release the “SET” button, The alarm icon stays on.
Automatically resets when temperature
returns to normal.
LO
Low Temperature Alarm
Refrigerator: Cabinet
temperature has
remained below 26°F
(-3.3°C) for more than
2hrs
Beeps continually, To silence the alarm, press and
release the “SET” button, The alarm icon stays on.
Automatically resets when temperature returns to
normal.
E. Safety Device
1. Compressor External or Internal Protector
•
If combined temperature/amperage value is above the limit specified by the compressor
manufacturer, the compressor external or internal protector operates independently to
turn off the compressor. The compressor external or internal protector de-energizes the
compressor until the temperature/amperage value returns to an acceptable level.
•
If the condenser fan motor is operating and the compressor is off, it is most likely that the
compressor external or internal protector opened. If both the compressor and condenser
fan motor are off, it is most likely the controller failure.
•
On refrigerators, the compressor external protector is integrated with the start relay.
2. Short-Cycle Protection
There is a 3-min. minimum off-time and on-time for the compressor.
