Alliance Laundry Systems NetMaser Series - Door Lock Switch Analysis

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Troubleshooting
F232204R5
26
6. Door Lock Switch Analysis
Is
there voltage across
H1-12 and H1-7 on the
door interlock
board?
(1)
Is
there voltage across
H1-14 & H1-6 on the
door interlock
board?
(12)
Yes Yes
Is
there voltage across
H1-3 on the logic board
to H1-6 on the door
interlock
board?
No
No
Replace Door
Interlock board or
control fuse.
Correct wiring
between door
interlock board and
logic board.
Replace logic board.
(13)
Yes
No
Is there
voltage across
H1-13 and H1-9 on the
door interlock
board?
(2)
Is there
voltage across
H1-8 and H1-2 on the
logic board?
(3)
Replace the logic
board.
NoNo
YesYes
Correct wiring and
check connections
on logic board and
interlock board.
Is there
voltage across
H1-4 and H1-7 on the
door interlock
board?
(4)
Is
there input voltage to
FU3?
(5)
No
Yes
Disconnect power.
With the door closed is there
continuity through the
door switch?
Is
there output voltage
to FU3?
(6)
Yes
Replace the
door switch.
No
Correct wiring
between the door
lock switch and the
door interlock
board.
(7)
Yes
No NoYes
Disconnect connector H3
and power from output
board.
Is
there continuity
between H3-2 and
H3-5 on the output
board?
(8)
Check wiring
between transformer
and fuse. Replace
transformer if
necessary.
Replace the fuse.
No
Is
there continuity
between terminals 21
& 22 on the water level
switch?
Is
there water in
the cylinder?
No No
(9)
Check wiring between water level
switch and output board.
Yes
Yes
Refer to drain and
pump analysis.
Replace water level
switch.
Yes
Is
there
continuity
between H3-4 & H3-5
on the output
board?
No
Replace output
board.
(10)
Yes
Replace output
board.
Check wiring to
door lock solenoid.
Replace door lock
solenoid if
necessary.
Is
there continuity
between H3-2 &
H3-4 on the output
board?
No
Yes
(11)
CHM344S
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