Control Replacement - 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.
Resistance
Temp. °F
–20
–15
–10
– 5
0
5
10
15
20
25
30
35
40
45
50
NOTE: As temperature decreases, resistance increases. As temperature increases, resistance decreases.

87. CONTROL REPLACEMENT

When a problem with the electronic control is
detected during the diagnostic cycle, or while
making the electrical tests we have discussed, the
control is replaced as a complete unit. Due to the
sensitivity of the electronic control, careful
handling is required. As a precautionary measure,
we recommend the use of a grounded wrist strap
when handling the electronic controls. The wrist
strap, cord and alligator clip are designed to carry
away any electrostatic charge from your body and
to direct the charge to an available ground. By
using this static protection device, potential
electrostatic discharge problems associated with
the handling of the electronic control will be
minimized. Always handle the electronic control
by the metal edges. If a wrist strap is not available,
touch the washer while it is plugged in before
handling the control to dissipate any charge.
To replace the control, first unplug the washer.
Remove all of the wires connected to the control
and take out the four screws securing the control
to the control hood. When removing wires from
60549
Section 8 Service Procedures Unique to Electronic Control Model Dryers
Thermistor Chart
Temp. °F
Ohms
826000 55
697000 60
590500 65
501500 70
427000 75
364800 77
312500 80
268400 85
231200 90
199600 95
172800 100
150000 150
130500 110
113800 115
99500 120
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
WARNING
Resistance
Ohms
87200
76600
67350
59400
52500
50000
46500
41300
36700
32700
29100
26100
23300
20900
18800
Figure 61
the control, hold down on the board near the
appropriate terminal, and disconnect the wires
using a pliers. Do not pull on wires.
The new control is supplied in a special anti-static
wrapping, and protected by anti-static foam.
While holding the metal edges, remove the control
from the foam and the wrapping. Lift the
inoperative control off the mounting bracket and
place it on the anti-static wrapping. Before
positioning the new control in the control hood,
peel off the protective plastic coating from the
front side of the control, then fasten the control
down with the four screws. Following the wiring
diagram, reconnect the wires to the new control,
then replace the control hood.
It is important to take care when handling the
original control. It must be carefully placed in the
anti-static wrapping and the anti-static foam
which was removed from the new control. A copy
of the replacement report, must be completely
filled out and returned with the control. Warranty
credit will not be issued if the control is not
wrapped properly.
Resistance
Temp. °F
Ohms
125 16900
130 15200
135 13800
140 12400
145 11300
150 10200
155 9300
160 8400
165 7700
170 7000
175 6400
180 5900
185 5400
190 4900
195 4500
W001R1
89