To Service The User Interface Board And Touch Control - Electrolux E23CS75DSS0 Service Manual

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Addendum A - Perfect Temperature Drawer
The drawer cover has the membrane and user
interface board mounted in the center front section
of the plastic frame. The frame on the bottom side
also holds the roller track that the drawer itself will
sit in to allow it to be a full pull drawer.
The power to operate the drawer and a wire from
the food compartment light switch will connect
to the control unit via a wire harness coming up
from the bottom through the service opening for
the water lines and mid-level lighting wires. This
harness will connect to the four pin connector in the
bottom right back section of the control unit. (See
Figure 5.)
The wiring harness coming from the user interface
control in the cover will connect to a 10 pin
connector located in the top right side, toward the
front of the control unit. (See Figure 5.)
The drawer cover contains the user interface
board, membrane key pad, the NTC thermistor
that senses the drawer temperature, and the wiring
harness that runs between the user Interface and
the main control unit. (See Figure 6.)
CAUTION
Ground yourself to the refrigerator cabinet
before dissembling any electronic parts.
To service the user Interface board and touch
control: (See Figure 7.)
1. Remove the drawer.
2. Reach behind the cover on the right side and
release the connector plug from the cover
harness to the main control unit.
3. Lift the cover off the supports in the liner and
pull it forward.
4 Remove the cover from inside the refrigerator
and turn it over on a clean flat surface.
5. Remove the screws holding the user
Interface board cover in place and remove
cover.
6. The board will now snap out of the retainer.
7. Disconnect the membrane key pad and
harness connector ribbon cable from the
printed circuit board assembly. Push back on
the tabs along the front edge of the board
and lift the user Interface board up, pull the
board out from under the rear retainers and
lift it out of the cover.
10 Pin Connector For User Interface Board Wiring
Harness Coming From Cover
115 V Power Supply 4 Pin Connector is in this location
on back.
Figure 5
Cover Over
Wiring
Interface Board
Harness
Connector and Harness to Control Unit
Figure 6
User Interface
Push back on the tabs along the front edge of the board.
Figure 7
Cover Over
Wiring Harness