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8-2. FAULT DIAGNOSIS AND TROUBLESHOOTING

1. Be careful of electric shock if disconnecting parts while troubleshooting.

2. First of all, check the connection of each electrical terminal with the wiring diagram.

3. If you replace the MAIN PWB ASSEMBLY, reinsert the connectors correctly.

CAUTION

NO

YES

YES

YES

YES

NO

NO

NO

NO

YES

BL

WH

WH

WH

WH

RD

BL

BL

BL

OR

RD

BL

(1)

BL

WH

WH

WH

WH

RD

BL

BL

BL

OR

RD

BL

(2)

Is the supplied voltage 120 V AC?

Is the voltage between the pins of 2 FILTER
ASSEMBLY connector 120 V AC?

Is the LED (1) on?

Are the connectors (2) on the PWB loose?

Is wire of the DISPLAY PWB ASSEMBLY  
broken?

Replace  DISPLAY PWB ASSEMBLY 
or repair wire.

Check the fuse or reset
the circuit breaker.

Replace the FILTER
ASSEMBLY (CIRC).

Replace MAIN PWB
ASSEMBLY.

Reconnect.

Replace the MAIN PWB
ASSEMBLY.

YES

YES

YES

NO

NO

 

Base Packing

Level

Tighten

Tighten

Have all the transit bolts and base packing
been removed?

Remove the transit bolts
and Base packing.

Move the washer or
reinforce the floor.

Is the washer installed on a solidly constructed
floor?

Check if the washer is perfectly level as follows:

Check the leveling of the washer with a Level
and check that the washer is stable.

Put an unbalance part (rubber) inside of drum
and start QC test mode and run in high spin
(Refer to section 7-2). 
When the machine is spinning in high speed,
verify that it is stable.

If it is not stable, adjust feet accordingly. After
the washer is level, tighten the lock nuts up
against of the base of the washer. All lock nuts
must be tightened.

If you do not have the unbalance part, put 4.5 to
6.5 lbs (2 to 3 kg) of clothing. Once loaded,
press power, Rinse+Spin and the start/pause
button in sequence.
When the machine is spinning in high speed,
verify that it is stable. 

SOFTENER

MAX

Is water supply shut-off?

Is the tap opened?

When you press both CUSTOM PROGRAM
button and PRE-WASH button simultaneously, is
the water level frequency below 246?

Is the inlet valve filter clogged?

Is resistance between each terminal of INLET
VALVE ASSEMBLY 0.8-1.2 

kΩ

? 

Verify the voltage of the inlet valve connector is 

120 V AC.

(Refer to 7-2 QC TEST MODE)

Is water supplied?

Are receptacles correctly connected to the
terminals of the INLET VALVE ASSEMBLY?

Has detergent been put in the correct compartment
of the dispenser?

Is the detergent caked or hardened?

Open the tap.

Check the AIR CHAMBER
and the tube (clogged). 

Clean the filter.

Replace the INLET VALVE
ASSEMBLY.

Check electrical connection.
Replace the MAIN PWB
ASSEMBLY.

Refer to 

「NO WATER SUPPLY」

Check the wiring.

Put the detergent in the
correct place. 

Clean the dispenser.

  

SOFTENER

MAX

SOFTENER

MAX

 

Hot water

Prewash

Bleach

Main wash

Secure the bolt.

Replace the STATOR
ASSEMBLY or ROTOR
ASSEMBLY.

Refer to

「NO WATER SUPPLY」

Check the wiring on the 
dispenser.

Put it in the correct
compartment.

Clean the Cap and
Container.

Is the motor bolt loosened?

Is there friction noise coming from the motor?

Is water supplied?

Are the plugs correctly connected to the terminals of
the INLET VALVE ASSEMBLY?

Is liquid detergent/softener/bleach put in the correct
compartment of the drawer?

Is the liquid detergent/softener/bleach cap clogged?