Sub-Zero UC-24 series Service Manual page 32

Under Counter (UC-24) Series
Additional Icemaker Operation Notes
NOTES:
• There is no "ICE" key on the control panel of the UC-24C. However, you may see the ICE icon appear during
Diagnostic Mode because the LCD is common with other models.
• Power to the icemaker comes direct from L-1, so it is ON 100% of the time, unless the icemaker shut-off arm is
tripped to the "up / OFF" position.
• The icemaker shut-off arm must be in the "down / ON" position for the icemaker to operate.
What Happens During Ejector Blade Rotation
Figure 6-2 represents a view of the ejector blade from the front (or module side) of the icemaker. This diagram indi-
cates what happens during the rotation of the ejector blade and will assist the Service Technician in diagnosing ice-
maker problems
Water Valve Energized
7.5 Seconds
140cc. or 4-3/4oz. Fill
(about 11:00 o'clock)
Thermistor Opens
in This Range of Rotation
Heater Off
6:00 o'clock (reference)
Figure 6-2. Ejector Blade Rotation Diagram
6-3
Icemaker Information
Ejector Blade Stop Position
(about 1:30 o'clock)
Start Position
Thermostat Closes
Motor On, Heater On
Ejector Blade Stalls on Ice
Motor On, Heater On
(1/2 Minute to 5 Minutes
about 4:00 o'clock)
#7003933 - Revision B - November, 2007