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Main Control Board
To access the main control board, it is necessary to
fi
rst remove the front cover (See
Power Supply Board
,
this section
.
), and then remove the back cover from
the housing. Before removing the back cover, note
the positioning of the wiring retained by the plastic
clips. As shown in the photo below, the white wiring
is retained under the top plastic clip and the black
wiring under the bottom plastic clip.
Back Cover
Plastic Clip
Plastic Clip
The main control board is attached to the inside of
the control housing with 4 Phillips-head screws. The
board is connected with 11 harnesses on the top
and 3 large harnesses on the side.
Note:
The K111 wire harness can plug into the
K108 receptacle on the main control board. Before
disconnecting wire harnesses, it may be helpful to
mark the K111 wire harness and note its connection
to the main control board.
K111
K
108
System Tray
The system tray contains the freezer and the fresh
food compressors, compressor inverters, driers,
condensers, condenser fans, control board, and EMI
fi
lter. The system tray can be pulled out from the
front of the unit in increments (9 inches, 16 inches,
and completely out) to service these components.
To pull the system tray out to the 9-inch position:
1. Remove the toekick and vent panel. (See
Toekick
and Vent Panel
.)
2. Remove the 5/16-in. (8-mm) hex-head screw
from the right and left sides of the system tray.
Caution:
To prevent damage, protect the
fl
ooring in
front of the refrigerator.
Note:
In the following steps, rubber insulators are
used to cushion tubing and wiring connected to
the system tray. Note the location of the insulators,
tubing, and wiring. Return them to their original
locations when repairs are completed.
3. Pull the tray forward 2-3 inches.
4. Remove the compressor inverter wiring harness
from the center compartment.
(
Continued next page
)
