Service manual

800170 159
Section 5 Service Procedures
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect electric power to the washer/dryer before servicing.
• Close gas shut-off valve to gas dryer before servicing.
• Never start the washer/dryer with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the washer/dryer is properly grounded.
W014R1
WARNING
90. WASHER MOTOR CONTROL BOARD
a. Go to rear of washer and remove screws
holding rear access panel to rear of control
cabinet. Refer to Figure 22.
b. Tilt access panel back far enough to disengage
bottom of access panel from opening in control
cabinet.
IMPORTANT: Due to the sensitivity of the motor
control board, careful handling is required. As a
precautionary measure, we recommend using a
ground wrist strap when handling the motor control
board. Wrist strap, cord and alligator clip are
designed to carry away any electrostatic charge
from your body and to direct charge to an available
ground. By using this static protection device,
potential electrostatic discharge problems
associated with handling of motor control board
will be minimized. Always handle motor control
board by its metal edges. If a wrist strap is not
available, touch washer while it is plugged in before
handling control to dissipate any charge.
NOTE: New control is supplied in a special anti-
static wrapping, and protected by anti-static foam.
While holding control by its metal edges, remove
control from foam and wrapping.
c. Press in on locking tabs and unplug harness
disconnect blocks and all wires from motor
control board.
NOTE: DO NOT pull on wires, instead, hold board
near appropriate disconnect block and unplug by
pulling on disconnect block and individual wire
terminals.
d. Remove four screws holding motor control
board to rear access panel. Refer to Figure 22.
e. Place old control board in the anti-static
wrapping that new control board was supplied
in.
f. Position the new motor control board on rear
access panel as shown in Figure 22. Reinstall
screws (removed in Step “d”) and tighten
firmly.
g. Follow the wiring diagram and reconnect wires
and harness disconnect blocks to new motor
control board.
IMPORTANT: It is important to take care when
handling the original motor control board. It must
be carefully placed in the anti-static wrapping and
anti-static foam which was removing from new
motor control board. If motor control board is not
wrapped properly, warranty credit will not be
issued.