Maintenance Service And Trouble Shooting - Haier HLT20E Service Manual

C
Trouble-shooting charts
If you replace the computer sequencer without checking the other components carefully, the
computer sequencer may be damaged again. Therefore, please first check if the other components
working normally before replacing the sequencer in maintenance.
No washing and No water filling
Confirm that there's no power failure, pull the
power plug out and insert it tightly again. Then
close the top lid , turn the sequencer knob to the
wash location and pull it out
Measure the voltage of
white & black wires of the two ends of the power
input of the sequencer
No
Measure the voltage of
the two ends of the power cord
Yes
Pull out the power cord
Measure the voltage of
the door switch with the top lid
close
The resistance is 0
Check if the wire unit is normal?
Yes
Insert the
plug and measure the voltage of
two ends of the motor
Yes
Check if the capacity is normal?
No
Repair the capacity

MAINTENANCE SERVICE AND TROUBLE SHOOTING

Yes
No
Replace the power cord
Infinite
Replace the door switch
No
Repair or replace the wire unit
No
Repair or replace the wire unit
Yes
Check if the motor is action?
Check the transmission system.
10
Measure the voltage of
the two ends of the water inlet valve
No
Replace the sequencer
No
Yes
Yes
Replace the water inlet valve
Replace the motor