Electronic Icemaker - GE Electronic Icemaker Technical Service Manual

Electronic Icemaker

Beginning in the Spring 2001, a newly
designed icemaker will be introduced in
several refrigerators. This service guide will
help you become familiar with the icemaker
and its operation.
The icemaker contains several new and
innovative features. It has an electronic
control board, an on-off switch, a seven ice
cube mold, a lever style feeler arm and a
thermistor to monitor temperature.
To access the
control board and
other components
within the icemaker,
lift and remove the
plastic plug at the top
of the cover. Remove
the Phillips screw
holding the cover in
place.
The control board is held in place by three
Phillips screws. All wiring is connected to the
board by plug-on terminals.
The control board contains two sensors
(Hall effect sensors), that are similar to an
electronic reed switch. The sensors are
activated by magnets and are used to assist
in controlling icemaker operation. One
magnet, attached to the end of the ejector
arm, allows the control board to use magnetic
sensing to determine if the motor has reached
the home position. The second magnet,
located on the ice sensing arm (feeler arm),
lets the control know whether the arm has
reached a fully extended position.
MAGNET 1
The on-off rocker switch allows the
icemaker to be turned off. When the switch
is set to on, a green LED on the right side of
the cover will light to show power is on. The
LED is also used to indicate certain icemaker
fault conditions, such as an open or shorted
thermistor, or a harvest cycle longer than 30
minutes. When a fault occurs, the LED will
blink 1/2 second on, 1/2 second off indefinitely
until the icemaker is turned off.
POWER LED
1
MAGNET 2