Alliance Laundry Systems HTEB17-N2802, Service Manual

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Section 7 Dryer Test 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 all electric power to the machine and accessories before servicing.
• Close gas shut-off valve to gas dryer before servicing.
• Never start machine with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded.
• Washer motor not grounded! Disconnect electric power before servicing motor.
W502
WARNING
118. ELECTRICAL CIRCUIT TO IGNITION
SYSTEM (Gas Models)
a. While supporting the access panel, remove two
screws from bottom edge of access panel. Refer
to Figure 39 .
b. Gently lower the access panel to disengage
locators from bottom edge of front panel. Refer
to Figure 47 .
c. Close main gas shut-off valve. Refer to
Figure 75 .
d. Remove valve wire harness disconnect block
from the holding and booster coil. Refer to
Figure 90 .
e. Plug dryer power cord into wall receptacle, and
start the dryer in a heat setting (refer to the
Operating Instructions supplied with dryer).
f. Set test meter to read AC voltage and apply
meter probes into terminals on the dryer
harness plug that would correspond to
terminals "1" and "2" on the coil. Figure 89 .
Meter should register line voltage in all Fabric
settings, except FLUFF which should read
“zero” VAC.
g. If meter does not read line voltage in step “f”,
check motor switch, thermostats, fabric switch,
accumulator, or timer.
119. GAS VALVE COILS CHECK (Gas Models)
a. While supporting the access panel, remove two
screws from bottom edge of access panel. Refer
to Figure 39 .
b. Gently lower the access panel to disengage
locators from bottom edge of front panel. Refer
to Figure 47 .
c. Close main gas shut-off valve. Refer to
Figure 75 .
d. Remove disconnect blocks from gas valve
coils.
e. Set test meter to read Ohms and put meter
probes to terminals shown in Figure 90 , and in
the following chart.
COIL TOLERANCE READINGS
NOTE: If meter registers any other readings than
those listed above, the respective coil(s) should be
replaced.
Figure 90
1 - 3
4 5
Secondary
Coil
Holdin g
And Boo s ter
Coil
GAS VALVE FOR SILICON CARBIDE IGNITION
4
5
1
3
2
D270 S E3A
Meter probes to terminals: Meter should read:
Holding Coil – Terminals 1 & 2 1365 ± 25 Ohms
Booster Coil – Terminals 1 & 3 560 ± 25 Ohms
Secondary Coil – Terminals 4 & 5 1220 ± 50 Ohms
To reduce the risk of fire, explosion and
electric shock, close the valve in the gas
supply line to the gas dryer and disconnect
the electrical power unless gas or power
supplies are required to perform test
procedure.
W263
WARNING