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800170
Section 3 Troubleshooting (EDC Models – Dryer Control)
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
57. ELECTRONIC CONTROL GAS DRYER — NO HEAT ANALYSIS
Replace inoperative
wiring at terminal
block to electronic
control.
NO HEAT ANALYSIS
NO
NO
During operation an "OP"
or "SH" may be displayed.
This indicates an open or
shorted thermistor.
Use diagnostic test
"Dryer On Temperature Test".
If "SH" or "OP" appear, do
the following checks:
– Check wiring at thermistor.
– Replace thermistor.
NO
Replace inoperative
limit thermostat.
YES
YES
Does the
thermistor
temperature
check out according
to the diagnostic
test?
NO
YES
YES
Open lower
front panel and
check glow bar.
Is the glow bar
activating?
Check
voltage at
GREY "FS-1"
to "H4-3",
Is there
voltage?
Check
voltage at
gas valve
PINK "2" to NEUTRAL,
Is there
voltage?
Check
voltage at
PINK "FS-2"
to "H4-3",
Is there
voltage?
After checking for correct
wiring, replace inoperative
thermistor.
Replace inoperative
glow bar.
Replace electronic
control board.
After checking wiring
at gas valve, replace gas
valve or gas valve coils.
NO
NO
YES
NO
(#) Numbers next to voltage checks
correspond to the locations marked
on the wiring schematic.
D208S
1
3
2
