Haier HW50-1010W, Service Manual, Page: 23 / 32

SERVICE MANAUL
HW50-1010W/HW50-1010S
Front Load Washing Machine
２３
Troubleshooting:
Error 3
The start indicator lighted on 0.2s andoff 0.2s for 3 times,repeat 4s later .
Error message:Temperature sensor is not properly connected or damaged (display at the end of a
program).
Troubleshooting:
N
Check if drain pump acts by touching
pump position
Y
Check if drain pump or
drain pipe is jammed,
And open the filter and
clean
N
Cut off the power and choose spin
program to start ,then check the import
voltage of drain pump, is it between
AC 220-2240 V?
Replace drain pump
N
Cut off power and pull out water level
pressure switch wire connection. Set
spin program to start. Check the export
voltage to drain pump, is it between AC
220-240V?
Replace PCB
NTC exist open circuit. Replace it
Y
Y
Check if NTC is connected properly
Cut off power and measure the resistance
of temperature sensor by multimeter , is
it between 5-14k Ω ?
Y
N
Connect NTC well
N
N
Replace PCB
Check if water is emptied
Y
Cut off power and water level pressure switch wire
connection, measure the resistance of 11 and14 pin,
is it infinite? If not, it is water level pressure switch
failure and replaces it. If it is, then repair and check
PCB and wire as followed.
N
Y
The wire between PCB
and drain pump is not
connected properly.
Replace the wire.
Check the white wire and black wire of NTC,
are they connected well?
Connect all wires well
Disconnect the white wire and black wire
from PCB, and measure if the resistance
between white wire and black wire of PCB, is
it infinite?
Y
N
Y
Replace wire