SERVICE MANUAL
HW70-1401
Front Load Washing Machine
10-2. Examination & Troubleshooting
10-2-1. Display nothing
Troubleshooting:
10-2-2. No water inletting
Troubleshooting:
10-2-3. No draining
Measure the power supply ,is it exists
220V-240V AC voltage
Y
Repair power supply
N
Press the power switch
N
Check if power plug exists 220V-240V
AC voltage at the import pin
Is the tap shut off or the water pressure
too low?
Y
Open tap or wait for normal water
pressure
N
Check if water is leaking from washer
connection, especially between inlet pipe
and tap. to make sure of no bends.
Reconnect inlet pipe.
N
Check if filter of electromagnetic valve
is jammed
Clean filter
Choose pre-wash program and start
then check if there is 220-240V at
ex
netic valve
Is power switch on?
Y
Y
N
Insert the plug well and test
N
Press power switch and check the
voltage between two pins of power
switch. Is there 220-240V AC
volta
e?
N
Make sure power supply cable
assembly is connected well and then
replace power switch.
Cut off power and check if plugs are
connected well by pulling the plug of
PCB.
Y
N
Y
Replace PCB
Y
Choose pre-wash program and start
Check if there is 220-240V at import
pin of electromagnetic valve
Is there open circuit between
electromagnetic valve and PCB?
Y
N
Replace electromagnetic valve
Reconnect the wire
Replace PCB
N
N
Y
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