24 Section C - Electronic Controls
Alarm
Audible Transducer (Piezo)
Control, Main Board
Power Supply ... AC Input Voltage – 115 V AC @ 60 Hz.
Control, User Interface
Power Supply ... Input - 5VDC (from Main Board)
Numeric Display
Version A …2 digit, 7 segment numeric with degrees symbol, minus sign segment
and a 4 segment character to represent F and C (magnetically activated reed
switch that detects Fresh Food Door state).
Version B … 1 digit, 7 segment numeric. Fresh Food Door Sensor (magnetically
activated reed switch that detects Fresh Food Door state).
Fahrenheit & Centigrade Temperature (Some models)
Allows customer to change temperature readings from Fahrenheit to Centigrade
and back.
Showroom Setting
Active functions Displays:
• Freezer/Fresh Food Temperature keys
• Fresh Food Lights Alarm Key (Key Tone ONLY)
• Air Filter Key (Key Tone and Green LED toggles on and off)
• All other functions are disabled including alarm(s) enabling.
NOTE
The term POR (Power On Reset) appears many times in this section of the Service
Manual. POR simply means to remove the power cord from the electrical outlet, wait a
few seconds, then plug the power cord back into the receptacle.
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