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F232203
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Troubleshooting
27. Machine Won't Start (OPL)
The machine
won't start.
Is there
input
voltage to
the
machine?
Connect power
to the machine.
No
1A
Test the contol
circuit fuses with
an ohm meter.
Are any of the
fuses blown?
Yes
Replace the
control circuit
fuse(s) as
needed.
Yes
2A
Is any of the
machine's
wiring loose
or damaged?
No
Repair/replace
the wiring as
needed.
Yes
Is there voltage
(120 Volts AC)
between ACH
and ACN on the
fuse board?
No
3A
Replace the
fuse board.
No
Test the FU3,
FU4, FU5 and
FU6 fuses with
an ohm meter.
Are any of the
fuses blown?
Yes
Replace the
FU3, FU4, FU5
and FU6 fuses
as needed.
Yes
CHM437S
4A
Is the
on/off
switch
intact?
No
5A
Replace the
on/off switch
No
Does the door
handle switch
lever completely
depress the
switch?
Yes
Adjust the door
handle switch
lever.
No
Refer to the
Door Unlocking
Malfunction
flowchart.
Yes
