Section 3 Troubleshooting

9. NO MOTOR OPERATION WITH NO AC DRIVE FAULT

The motor does not operate and there are no apparent AC drive faults present.

Repair and/or replace the drive system as needed.

NO

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

For

 

 

 

 

 

 

 

 

 

 

 

 

single-phase models, is

 

 

 

 

 

 

 

 

Is the

 

 

 

there voltage (200 Volts AC)

 

 

 

 

 

 

 

 

drive system

YES

from L1 to L2 on the AC drive?

 

NO

 

Check for incoming voltage

 

 

 

 

 

 

 

 

(e.g., motor, belt,

For 3-phase models, is there

 

 

 

 

from the main breaker to the

 

pulleys) operating

 

 

 

 

 

 

 

 

 

machine.

 

 

properly?

 

 

 

voltage (200 Volts AC) from L1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

to L2, from L1 to L3 and from

 

 

 

 

 

 

 

 

 

 

 

 

L2 to L3 on the

 

 

 

 

 

 

 

 

 

 

 

 

AC drive?

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Repair and/or replace

 

 

 

 

 

 

 

 

 

 

 

the wires as needed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

 

 

 

 

 

Are

 

 

 

 

 

 

 

 

 

 

 

 

the wires on

 

 

 

 

For 18, 25, 35 and 55 - pound capacity

2

 

 

 

the FREQ terminal

 

 

 

 

 

 

 

on the Main Board

 

 

 

 

models, are the following voltage (24 Volts

 

 

 

 

 

 

 

 

 

 

 

 

connected

 

 

 

 

DC) readings present? NOTE: The readings

 

 

 

 

 

 

 

 

 

 

 

 

properly?

 

 

 

 

 

must be taken during a cycle.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Forward Rotation: From the stf to the white

 

 

 

 

 

 

 

 

 

 

wire and from the stf to the brown wire

 

 

 

 

 

 

 

 

 

 

Reverse Rotation: From the str to the white

NO

 

 

 

 

 

Check the AC drive parameter

wire and from the str to the brown wire

 

 

 

 

 

 

 

 

 

 

 

 

 

 

settings.

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

For 75, 100, 135 and 165 -pound capacity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Contact Alliance Laundry

models, are the following voltage (24 Volts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Systems' Customer Service

DC) readings present? NOTE: The readings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Department for the parameter

 

must be taken during a cycle.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

setting for your machine.

Forward Rotation: From stf to ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reverse Rotation: From str to ground

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

Are the

 

 

 

 

 

 

 

 

 

 

 

following voltage (24 Volts DC)

 

 

 

 

 

 

 

 

 

 

readings present?

 

 

 

 

 

 

 

 

 

 

 

 

Forward Rotation (STF):

YES

 

YES

NO

From the red/black wire to the brown wire.

 

 

 

 

 

 

From the red/black wire to the white wire.

 

 

 

 

 

 

 

 

 

 

Reverse Rotation (STR):

 

 

 

Refer to the "No Motor

 

 

 

 

From the yellow/black wire to the brown

 

 

 

 

 

 

 

wire. From the yellow/black wire to the

 

 

 

Operation (With AC Drive

 

 

 

 

 

 

 

 

 

 

 

 

white wire.

 

 

 

 

 

Fault)" flowchart.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace the main board.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CFD2002S

 

 

 

 

 

 

 

 

 

 

 

 

42

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