Sub-Zero INTEGRATED Series Service Manual page 23

General Information
Monitor Icemaker System and Display If Service is Needed
The drawer lighting signal is observed via the orange/black wire, used to indicate whether a drawer switch is open or
closed; if closed, power is allowed through the relay to the icemaker System
The microprocessor then observes the AC voltage supplied to the water valve solenoid. If the solenoid is energized
for more than fifteen (15) seconds, power to the icemaker interrupted for 24 hours and an error code is logged (EC
30). If this happens five consecutive times, ICE and SERVICE will flash and the ICE ON/OFF key will be disabled.
NOTES:
• To clear the ICE and SERVICE error indicators, and reactivate the ICE ON/OFF key, the problem must be cor-
rected, then the unit must be switched OFF and back ON, and the Alarm key must be pressed for 15 seconds to
clear the Error Code.
• To allow ice to freeze fully and reduce effects of low water pressure, power to the icemaker system is interrupted
for 45 minutes after each ice harvest. This can be bypassed for service purposes by switching the icemaker sys-
tem OFF, then back ON using the ICE ON/OFF key.
• When in Sabbath Mode, the icemaker system is disabled. Sabbath Mode will be covered later.
HIGH VOLTAGE
BLACK
J5
J7
E2 E7 E10 E6
J4
J3
J1
J2
ORANGE/BLACK
ORANGE
REFRIGERATOR
LIGHT SWITCH
ORANGE/BLACK
ORANGE/BLACK
FREEZER
LIGHT
SWITCHES
Figure 3-25. 736TCI Signal Trace Schematic (High Voltage) of Icemaker Electrical System
#7015817 - Revision A - January, 2010
INTEGRA
INTEGRA
L1 115 VOLTS
NEUT
60 CYCLES
WHITE
GRAY
J6
TAN
ORANGE/BLACK
PINK/BLACK
No power to drawer
lights, so relay
switched to energize
Icemaker System
ORANGE
Fill tube heater is energized
whenever icemaker system
is switched "ON" and ICE
appears on LCD
WHITE/BLUE
TED
TED
(736 T (736 T all SWS #2970000) all SWS #2970000)
WHITE
3
1
5
4
PINK/BLACK 6
PINK
2
7 8
TAN
ICEMAKER
M
2300-2900 Ω
3-16
SERIES
SERIES
(See Figure 3-25).
M
M
M
M
FREEZER
FAN CONTROL
RELAY
WHITE
WATER VALVE
160 Ω
REFRIGERATOR
LIGHTS
FREEZER
LIGHTS
FILL TUBE
HEATER