Haier HLF103Q Service Manual page 12

8 analysis of the common breakdowns
C
T
Trouble-shooting charts
If you replace the thermal limiter or program controller without checking the other components
carefully, the thermal limiter or program controller may be damaged again. Therefore, please first
check if the other components working normally before replacing the thermal limiter or program
controller in maintenance.
8.1 No action
Measure the resistance between the two joints to
Confirm that there's no power failure, the power
down-lead is connected reliably and the switch
is on
Check if the voltage between the
wiring seats L,N,E
Pull the power
Yes
Check if the computer program panel is on
Yes The resistence is 0
Check if the thermal limiter is on
Yes
The resistence is not infinite
Push down the searching unit and
check if the door switch is on
Yes The resistence is 0
while pushing down the start button,
judge wether it is on or off
Yes The resistence is 0
Check if the control thermostat
and high limit thermostat are good
Yes
Check if the heater is good
Yes The resistence is not infinite
Check if the motor is good
Check if the wire unit is good
No
Check and replace the power down-lead .
No
Check and replace the computer program panel
The resistence is infinite
No
Replace the thermal limiter
The resistence is infinite
No
Replace the door switch
The resistence is infinite
No
Replace the temperature fuse
The resistence is infinite
No
Replace the control thermostat
and high limit thermostat
No
Replace the heater
The resistence is infinite
No
Replace the motor