GE PSC21MGM, Technical Service Manual

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Electronic Icemaker
This refrigerator is equipped with an Electronic
Icemaker. Refer to Pub # 31-9063 for more
information.
Dispensing Functions
The water, crushed ice, and cubed ice functions
are controlled by the main control board. To select
a function, press the appropriate pad on the
dispenser. The LED will light to identify the
selection.
To dispense the selected item, depress the
dispenser cradle located in the dispenser recess.
The solenoid and linkage assembly will open the
ice chute door to dispense the ice. If cubed ice is
selected, the crushed ice bypass solenoid will
allow cubed ice to bypass the ice crusher. The ice
chute door must remain open for 5 seconds after
dispensing ceases. After this 5-second delay, the
solenoid and linkage assembly will shut the ice
chute door.
The dispenser light will come on automatically
when the dispenser cradle is depressed and will
fade out 5 seconds after it is released.
The dispenser selection is recorded in the main
control board. In the event of a power failure, the
last selected function will be restored.
Quick Ice
The quick ice feature is available on some models.
This feature causes the evaporator fan to operate
non-stop for 48 hours (fan may operate in high or
low speed). This enables maximum icemaker
output.
The QUICK ICE pad initiates the quick ice mode
in the refrigerator. Pressing the QUICK ICE pad
lights the LED and sets the evaporator fan to run
at medium speed (unless the main control board
selects high speed) for a 48-hour period. The
evaporator fan is terminated during defrost, dwell,
post dwell, and door openings.
The quick ice selection is stored in the main
control board. The function will be restored in the
event of a power failure.
Door Alarm
The DOOR ALARM pad is used to turn on and
turn off the door alarm feature. If the feature is on,
the DOOR ALARM LED will flash when the door is
opened. If the door is open for more than 2
minutes, the door alarm will sound. The alarm can
be stopped by pressing the DOOR ALARM pad or
by shutting the door. If the DOOR ALARM pad is
pushed while the door is open, the alarm will stop
but the led will continue to flash until the door is
closed. When the door is closed it will reset the
audible alarm. This feature will be retained in the
event of a power failure.
Dispenser Light
The LIGHT pad turns the dispenser light on and
off. When the light is turned off, it will fade out. The
dispenser light will come on automatically when
the dispenser cradle is depressed and will fade out
5 seconds after it is released. The LIGHT pad will
not turn off the light during dispense.
Dispenser Lock
When the dispenser system is locked, no
dispenser command will be accepted. This
includes the dispenser cradle and will prevent
accidental dispensing that may be caused by
children or pets. If a pad is pressed with the
system locked, it will be acknowledged with 3
pulses of the LOCK LED accompanied by an
audible tone.
To lock or unlock communication between the
dispenser and the main control board, press the
LOCK pad and hold it for 3 seconds. The LOCK
LED will flash while the LOCK pad is pressed.
When the communication is locked, the LOCK
LED will be illuminated.
The status of other functions, selected prior to the
initiation of the lock feature, will be displayed. If the
lock is engaged while a mode is active, the LED
will remain on until that mode times out.
If the lock is engaged when the filter timer expires,
the LED will come on but cannot be reset until the
lock is turned off.
The lock feature will be retained through a power
outage.