Service manual

505894 63
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 dryer(s) before servicing.
• Close gas shut-off valve to gas dryer(s) before servicing.
• Never start the dryer(s) with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
61. BASE
a. While supporting the access panel, remove two
screws from bottom edge of access panel. Refer
to Figure 7.
b. Gently lower the access panel to disengage
locators from bottom edge of front panel. Refer
to Figure 16.
c. Remove two screws holding bottom tabs on
front panel to dryer side panels. Refer to
Figure 8. Swing bottom of front panel away
from dryer far enough to disengage hold-down
clips and locators from cabinet top.
d. Disconnect wires from door switch. Refer to
Figure 15.
NOTE: Refer to wiring diagram when rewiring
switch.
e. Gas Models:
(1) Silicon Carbide Ignition: Disconnect
igniter wires at disconnect blocks, sensor
wires from sensor terminals and wires from
gas valve coils at the quick disconnect
blocks. Refer to Figure 19.
Silicon Nitride Ignition: Disconnect wire
harness from igniter and sensor assembly,
and from gas valve coils at the quick
disconnect blocks. Refer to Figure 19.
(2) Close main gas shut-off valve. Refer to
Figure 19.
(3) Disconnect gas line to dryer.
(4) Remove three screws holding gas valve
bracket to base and remove valve with
attached lead-in pipe. Refer to Figure 21.
(5) Remove screw holding burner tube in place
from right side of burner housing. Refer to
Figure 21.
(6) Gently move burner tube toward rear of
dryer to disengage tab from slot on left side
of burner housing. Refer to Figure 19.
(7) Carefully rotate burner tube and igniter
counterclockwise so tab is at the 8 o’clock
position, and CAREFULLY remove burner
tube and igniter assembly out through front
of dryer.
IMPORTANT: The igniter is very fragile. Be careful
not to damage it during removal.
(8) Remove screw holding front of burner
housing to dryer base. Refer to Figure 21.
(9) Remove four screws holding shroud to
heater box and remove shroud and burner
housing out through front of dryer. Refer to
Figure 19.
f. Electric Models:
(1) Remove two screws holding element and
plate to heater box, then pull element down
and away from heater box. Refer to
Figure 21.
(2) Disconnect wire harness from limit
thermostat, thermal fuse and/or heating
element. Refer to Figure 21.
g. Open loading door and remove lint filter screw
and lint filter. Refer to Figure 11.
h. Remove screws holding air duct to front
bulkhead and remove air duct. Refer to
Figure 23.
IMPORTANT: When reassembling, be sure seal on
blower fan cover makes airtight seal on flange of
duct. Refer to Figure 22. If the duct or seal is
installed improperly, the airflow through the dryer
will be reduced which can adversely affect dryer
performance.
i. Disconnect wires from thermostat, and remove
ground screw. Refer to Figure 22.
To reduce the risk of serious injury or
death by carbon monoxide and other
gases in gas dryers, carefully read and
follow all instructions given in this section.
W005
WARNING