Haier HW80-B1486, Service Manual, Page: 18 / 25

SERVICE MANUL
HW80-B1486/HW80-B1286
Haier Front Load Washing Machine
18
7-3. Examination & Troubleshooting
7-3-1. Display nothing
Troubleshooting:
7-3-2. No water inletting
Troubleshooting:
Measure the power supply ,is it exists
220V-240V AC voltage ?
Y
Repair power supply
N
Press the power switch
N
Check if PCB 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
export pin of electromagnetic valve
Is power switch on?
Y
Y
N
Insert the plug well and test
N
Press power switch and check the
voltage between L port and N port of
the filter. Is there 220-240V AC
voltage?
N
The filter is broken, replace the filter
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