Alliance Laundry Systems A-Control - Drain Valve Analysis

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Troubleshooting
7. Drain Valve Analysis
Drain Valve Analysis
1A
With the water turned on and with
water running into the machine,
during a cycle's fill step, water is
not filling the machine.
If the output
board includes a fuse at
the DR location, test the DR fuse with
an OHM meter.
If the output board does not include a
fuse at the DR location, test the F20
and F21 fuses with an OHM meter.
Are any of the fuses blown?
3A
2A
NO
4A
YES
Replace the blown fuse(s).
Remove wire J4-3-4 from the drain
valve. Start the machine Does the
F20 and/or the F21 fuse blow?
YES
2A
NO
Inspect wire J22-1-16
J4-3-4. Repair and/or
replace the wire as needed.
Reconnect wire J4-3-4 to
drain valve. Does water fill the
machine during a cycle's fill
step?
NO
During a cycle's fill step, is the DR light on?
If the output board includes a fuse at the DR
location, is there voltage (220 Volts AC)
between the DR and the ACN?
If the output board does not include a fuse at
the DR location, is there voltage (220 Volts AC)
between terminal J22-1-16 and the ACN?
NO
1A
YES
Replace the output board.
NO
Is there
voltage (220 Volts
AC) between drain valve and
the ACN?
YES
5A
Replace the drain valve.
Inspect wire J22-1-15
J4-3-3. Repair and/or
replace the wire as needed.
6A
CHM386S