Alliance Laundry Systems CABINET HARDMOUNT UC125VNV Service Manual download pdf (Page 48)

46 F232203

Troubleshooting

10. Overflow Analysis

Water is running continuously into the machine.

Disconnect

power to the

machine. Does the

machine continue

to fill with

water?

YES

Repair/replace the water inlet valve that is

allowing water to enter the machine when

power is disconnected.

Reconnect

power to the machine.

Is the drain valve

closed tightly?

Refer to the "Drain Valve

Malfunction" flowchart.

Make sure that the

water level switch is open.

Perform an ohms test

across terminals 21 and 24 on the

water level switch.

Is it opened or closed?

Perform an ohms test

across terminals 31 and 34

on the water level switch.

Is it opened or

closed?

YES

Examine the water

level switch and the air

trap hose. Repair or replace

either as needed.

Does the machine continue

to fill with water?

Is there voltage

from the terminal for the

water inlet valve that is allowing

water to fill the machine (i.e., CF,

HF, S1, S2 and S3) and

the ACN?

YES

Replace the output board.

Examine the water inlet valve

wiring. Repair/replace the wiring

as needed.

CHM406S

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Alliance Laundry Systems CABINET HARDMOUNT UC125VNV Service Manual Page 48

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