Additional Icemaker Operation Notes; What Happens During Ejector Blade Rotation - Sub-Zero 700-3 BASE Technical & Service Manual

Integrated

Additional Icemaker Operation Notes

NOTE 1: The ICE ON/OFF key at the control panel activates the icemaker system. If "ICE" is not displayed on the
LCD, the icemaker system is OFF.
NOTE 2: To allow ice to freeze fully and reduce effects of low water pressure, the electronic control system disables
the icemaker system for 45 minutes after each ice harvest. To bypass the 45 minute dwell, press the ICE
key to switch the ice making system OFF, then press the ICE key again to cycle the ice making system
back ON.
NOTE 3: The ice bucket activates a switch when in place. If the ice bucket is not in proper position, ice production
will stop.
NOTE 4: The icemaker shut-off arm must be in the "down / on" position for the icemaker to operate.
NOTE 5: The icemaker relay on the control board also controls the fill tube heater and water valve.

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
3 Series
(700- BASE)
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)
#3758424 - Revision B - December, 2005