505033
47
Section 5 Service Procedures
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
49. REAR BULKHEAD AND HEATER DUCT
a. While supporting the access panel, remove two
screws from bottom edge of access panel. See
Figure 6.
b. Gently lower the access panel to disengage
locators from bottom edge of front panel.
Figure 13.
c. Remove two screws from bottom tabs on front
panel. See Figure 13. 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. See
NOTE: Refer to wiring diagram when rewiring
switch.
e. Disengage belt from motor and idler pulleys.
NOTE: When reinstalling belt, be sure belt is
properly installed on motor and idler pulleys and is
on the correct side of the idler lever. See Figure 21.
Belt must be positioned around cylinder between
center and rear baffle screws with the ribbed
surface against the cylinder. After installing belt,
manually rotate cylinder counterclockwise to check
that belt is properly aligned.
f. Remove four screws holding bulkhead to front
flange of cabinet. Then lift complete bulkhead
assembly out of slots in cabinet. See Figure 27.
IMPORTANT: When reassembling, be sure seal on
exhaust fan cover makes airtight seal on flange of
duct. See Figure 18. If the seal is installed
improperly, the airflow through the exhaust system
will be restricted which can adversely affect dryer
performance.
g. Remove two cabinet top hold-down screws.
h. Carefully remove cylinder out through front of
dryer.
i. Gas Models:
(1.) Silicon Carbide Ignition: Disconnect
igniter wires at disconnect blocks, sensor
wires from flame sensor terminals, and
wires from gas valve coils at the quick
disconnect blocks. See Figure 14.
Silicon Nitrate Ignition: Disconnect wire
harness from ignter and sensor assembly,
and from gas valve coils at disconnect
blocks. See Figure 15.
(2.) Remove burner tube attaching screw from
right side of burner housing, while holding
burner tube in place. See Figure 17.
(3.) Gently move burner tube toward rear of
dryer to disengage tab from slot on left side
of burner housing. See Figure 17.
(4.) Carefully rotate burner tube and igniter
counterclockwise so tab is at the 8 o’clock
position.
(5.) Move air shutter end of burner tube slightly
to right and CAREFULLY remove burner
tube and igniter assembly out through front
of dryer. See Figure 17.
IMPORTANT: The igniter is very fragile. Be careful
not to damage it during removal.
(6.) Remove screw holding burner housing to
heat shroud. See Figures 14 or 15.
(7.) Remove screw holding front of burner
housing to dryer base and remove housing
out through front of dryer. See Figure 17.
(8.) Remove two screws holding shroud to
heater duct, and remove shroud out
through front of dryer. See Figures 14 or
15.
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
