Failure:display Nothing Troubleshooting - Haier HWD-C1200TXVE-U Service Manual

SERVICE MANUL
HWD-C1200TXVE-U
HWD-C1200TXVE-U Examination &
Failure:Display nothing
Troubleshooting:
MMeasure the power supply ,is it exists
220-240V AC voltageeas
Is power switch on ?
Press power switch and check the voltage
between two pins of power switch. Is
there 220-240V AC voltage?
Cut off power and check if
connected well by pulling the plug of PCB.
Check if power plug exists 220V-240V AC
voltage at the import pin
Failure:no water inleting
Troubleshooting:
Is the tap shut off or the water pressure
too low?
Check if water is leaking from washer
Check if filter of electromagnetic vavle
is jamed
Choose pre-wash program and start
Check if there is 220-240V at import pin
of electromagnetic vavle
Is there
electromagnetic vavle
Choose pre-wash program and start
then check if there is 220-240V at export
pin of electromagnetic vavle
Y
Y
Y
plugs are
Y
N
N
N
N
open circuit between
N
Haier
Troubleshooting
N
N
N
N
Y
Y
Y
Y
N
23
Washing Machine
Repair power supply
Turn it on
Make sure power supply cabel assembly is
connected well and then replace power
Insert the plug well and test
Replace Power driver PCB
Open tap or wait for normal water pressure
Clean filter
Replace electromagnetic vavle
Reconnect the wire
Replace Power driver PCB