Service Manual

27
III. Controls and Adjustments
A. Control Module
All models are pretested and factory set. When plugged into an electrical power supply,
there is a slight delay, then the current cabinet temperature is displayed. From the
display module, the cabinet setpoint and temperature display scale can be changed.
Note: When exposed to high temperatures, a high-temperature alarm "Hi" may occur at
start-up. To silence the alarm, press and release the upper button. Alarm clears
once temperature is within factory parameters. For details, see"III.D.Alarm
Safeties."
NOTICE
• The control module is fragile, handle very carefully.
• Do not change wiring and connections. Never misconnect terminals.
• Do not short out power supply to test for voltage.
1. Display Icons
Control Module Icons
Icon Meaning
Compressor
Compressor running.
Defrost
Appliance is in defrost cycle. See "II.B. Service Diagnosis" for details.
Evaporator Fan Motor
Evaporator fan motor is running. Evaporator fan motor de-energizes when door is open.
Alarm
Appliance is in alarm. See "III.D. Alarm Safeties" for details.
ECO
°C
°F
V
V
Up
Button
Down
Button
Control
Panel
Standby and Light
Control for Glass Door
Models Button
Manual
Defrost
Button
Compressor Icon
Defrost
Icon
Evaporator Fan
Motor Icon
Alarm
Icon
Front
Panel