Haier HW-D1270TVE ME, Service Manual

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SERVICE MANUAL
HW-D1270TVE/ME
Haier Washing Machine
２０
Error message:Temperature sensor is not properly connected or damaged (display at the end of a program).
Troubleshooting:
N
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
220-240 V?
Y
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?between blue wire and
green wire
Y
The wire between
computer board
and drain pump
is not
connected
properly.
Replace the
wire.
Replace PCB
Cut off power and measure the resistance
of temperature sensor by multimeter, is
it between 5-
14kΩ?
Y
NTC exist open circuit .Replace it
N
Y
Check if NTC is connected properly
Connect NTC well
N
N
Check the blue wire and black wire of NTC,
are they connected well?
Connect all wires well
Y
Disconnect the white wire and black wire
from computer board, and measure if the
resistance between blue wire and black
wire of PCB is it infinite?
Y
Replace wire
Replace PCB