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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
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.
N OTE
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.
(Some models)