Burner Housing And Heat Shroud; Limit Thermostat; To Test Cycling Or Limit Thermostat - ALLIANCE AE9133 Service Manual

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.

41. BURNER HOUSING AND HEAT SHROUD

a. Remove two screws from the bottom edge of
the front panel. Refer to Figure 12.
b. Swing the bottom of the panel away from the
dryer to disengage hold-down clips and guide
lugs from cabinet top. Refer to Figure 12.
c. Disconnect wires from door switch. Refer to
Figure 13.
NOTE: Refer to the appropriate wiring diagram
when rewiring the switch.
d. 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 14.
e. Remove screw from right side of burner
housing, holding burner tube in place. Refer to
Figure 14.
f. Gently move burner tube toward rear of dryer to
disengage tab from slot on left side of burner
housing. Refer to Figure 18.
g. Carefully rotate burner tube and igniter
counterclockwise so tab is at 8 o'clock
position.
h. Move air shutter end of burner tube slightly to
right and CAREFULY remove burner tube and
igniter assembly out through front of door.
IMPORTANT: The igniter is very fragile. Be careful
not to damage it during removal.
i. Remove screw holding burner housing to heat
shroud. Refer to Figure 18.
j. Remove screw holding front of burner housing
to dryer base and remove housing out through
front of dryer. Refer to Figure 14.
k. Remove two screws holding shroud to heater
box and remove shroud out through front of
dryer.
60549 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
WARNING

42. LIMIT THERMOSTAT

a. Remove two screws from the bottom edge of
the front panel. Refer to Figure 12.
b. Swing the bottom of the panel away from the
dryer to disengage hold-down clips and guide
lugs from cabinet top. Refer to Figure 12.
c. Disconnect wires from door switch. Refer to
Figure 13.
NOTE: Refer to the appropriate wiring diagram
when rewiring the switch.
d. Disconnect wires and remove screws attaching
limit thermostat to burner housing or element
plate. Refer to Figure 19.

To Test Cycling or Limit Thermostat

1. Disconnect wires from thermostat or thermistor.
NOTE: Refer to appropriate wiring diagram
when rewiring thermostat or thermistor.
2. Cycling Thermostat (S.P.S.T.), Limit
Thermostat or Thermistor
a. Set meter to read Ohms.
b. Apply meter probes to the thermostat or
thermistor terminals.
c. Meter should read "infinite".
3. Cycling Thermostat (S.P.D.T.)
a. Set meter to read Ohms.
b. Apply meter probes to terminals 1 and 3.
Meter should read "infinite" and "zero"
between terminals 1 and 2.
c. Remove screws holding thermostat to
exhaust fan cover.
d. Heat thermostat with a small flame until a
distinct "click" is heard, then immediately
apply meter probes to terminals 1 and 3;
meter should read "zero".
e. While thermostat is still hot, apply meter
probes to thermostat terminals 1 and 2;
meter should read "infinite" until thermostat
cools at which time the meter should read
"zero."
Section 5 Service Procedures
W001R1
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