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INPUTS
120 VAC SUPPLY
P4
P5
1
2
3
4
2 3 4 5
1
5 6 7 8
1
5
4
3
2
P6
OUTPUTS
THERMISTORS
DISPLAY BOARD
P3
P2
1 2
1 2 3
3 4
10 9 8 7 6
1
5
4
3
2
P7
OUTPUTS
PLUG
PIN #
DESCRIPTION
1
Communication Line
P2
2
Display Voltage
3
GND
1
Ref. Thermistor
2
Frz. Thermistor
P3
3
Ref. Thermistor Output
4
Frz. Thermistor Output
1
2
3
4
Ref. Door Input
5
Ice Maker Valve Input
P 4
6
Dispenser Valve Input
7
Bimetal Input
8
1
AC GND
2
AC L1
P5
3
AC Neutral
4
AC Neutral
5
AC L1
1
Condenser Fan
2
P6
3
4
Defrost Heater
5
1
Air Door
2
Air Door
3
Compressor Drive
4
Evap. Fan Feedback
5
Evap. Fan Constant
P7
6
Air Door
7
Air Door
8
Compressor Drive
9
Evap. Fan Ground
10
Evap. Fan Run Voltage
5-5
OUTPUT
CONDITION
N / A
12 VDC
Measured at pins 2 & 3
GND
GND
GND
5 VDC
Measured at pins 1 & 3
5 VDC
Measured at pins 2 & 4
N / A
N / A
N / A
Voltage present when door
120 VAC
is open
Voltage present when ice
120 VAC
maker is energized
Voltage present when
120 VAC
dispenser valve is energized
Voltage present when
120 VAC
bimetal is closed
N / A
AC GND
120 VAC
AC Neutral
AC Neutral
120 VAC
Voltage present when
120 VAC
condenser fan is on
N / A
N / A
Voltage present when
120 VAC
defrost heater is on
N / A
3 - 6 VDC
Measured at pins 3 & 8
N / A
12 VDC
Measured at pins 5 & 9
3 - 6 VDC
Measured at pins 3 & 8
Evap. GND
5 - 12 VDC Measured at pins 9 & 10
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