Alliance Laundry Systems Cabinet Hardmount SC80SN Service Manual download pdf (Page 21)

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Troubleshooting

3. No Hot Supply 1 Fill Analysis

No Hot Supply 1 Fill Analysis

1A

With the water turned on to

the machine, during a cycle

that has been programmed

for a hot fill, no hot water is

filling compartment 1 of the

supply dispenser.

If the

output board includes a fuse at

the HF location, test the HF fuse with

an OHM meter.

If the output board does not include a

fuse at the HF 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 the wires from solenoid V9

on the hot water valve, refer to the

No Hot Supply 1 Fill Analysis

Dispenser Illustration. Start the

machine with a cycle that has been

programmed with a hot fill. Does the

F20 and/or the F21

fuse blow?

YES

2A

NO

Inspect wire J22-1-11 V1.

Repair and/or replace the

wire as needed.

Reconnect the wires to

solenoid V9 on the hot water

valve. Does compartment 1 of

the supply dispenser fill with

hot water during a cycle that

has been programmed for

a hot fill?

NO

During a

cycle that has been programmed for a

hot fill, during the cycle's fill step, is the HF

light on?

If the output board includes a fuse at the HF

location, is there voltage (220 Volts AC)

between the HF and the ACN?

If the output board does not include a fuse at

the HF location, is there voltage (220 Volts AC)

between terminal J22-1-11

and the ACN?

NO

1A

YES

Replace the output board.

NO

Is there

voltage (220 Volts

AC) between solenoid V9 on

the hot water valve and the

ACN? Refer to the No Hot

Supply 1 Fill Analysis

Dispenser Illustration.

YES

3A

Replace the hot water valve.

CHM374S

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