Sub-Zero UC-24 series User Manual

Icemaker Information
Under Counter (UC-24) Series
6-2
#7003933 - Revision B - November, 2007
MODULAR ICEMAKER
The model UC-24C utilizes a “modular icemaker.” The icemaker operation is not complex, however, an understand-
ing of its cycle of operation is necessary in order for a serviceman to make a proper diagnosis.
Modular Icemaker Operation
When the icemaker thermostat has sensed temperatures of 17°F, the thermostat closes. At this time, the current
now has a path through the thermostat to the motor. The motor is linked with the drive gear. From the module,
there are copper contacts that ride on copper strips on the backside of the drive gear. (See Figure 6-1) As the drive
gear rotates, these contacts from the module will make or break a circuit (track) to the copper strips to generate the
icemaker cycle.
TP
M
H
T
V
NL
Contact D
Contact C
Contact B
Contact A
Thermostat
4400
Ω Timer
Mtr.
Shut-Off
Switch
On (Dn)
Off (Up)
72
Ω Htr.
TP
TP
TP
TP
Green
Tan
Water Valve
Neutral
(White)
Power
(Pink)
Contact D
(Timer)
Contact C
(Holding Switch)
Contact A
(Water Valve)
Contact B
(Heater / Thermostat)
TP
Figure 6-1. Modular Icemaker Electrical Schematic

Sub-Zero UC-24 series Specifications

General

Brand	Sub-Zero
Model	UC-24 series
Category	Refrigerator
Language	English