LG RC9055*P*Z Service Manual page 26

10
DIAGNOSTIC TEST
Test 3 Motor check
Trouble Symptom : Motor malfunction, Occurrence of the "Clean filter" repeatedly
Measurement condition : • Power cord is unpluged.
• Door is closed.
• Check the user condition.
- Put overload into drum?
- Normally Input Voltage and Hertz?
• Pre-Check door switch
(If door switch has contact problem, motor should not operate.)
• Before check process, Check
the motor rotating by the LQC
test mode "See the 18 page".
• When power is on and
pressed the start button, does
motor operate?
• Is there any abnormal noise
during operation?
• Check white 3 pin female
connector from motor.
- Resistance check
• Check white 3 pin male
connector from controller.
(when power cord is plugged)
- two wire in white 3pin male
connector : 220~240V
• Check controller
-See page 17
(PCB Assembly Lay-out)
26
• Check the harness connection.
- Motor part : White 3 pin
housing.
- Controller part : Red 3 pin
housing ( Orange and Blue
wire ).
- Capacitor part : White 2 pin
housing.
• Check the belt ( position /
broken ).
• Check the Controller
- TR1 , TR2 Broken ?
• Check the slide ( 3 ea ).
• Check Capacitor volume. Power
on & press the start button.
- See the left picture.
• Check belt is burst.
• Check structural restriction.
( Motor supporter / Air guide
Blower )
• Check or replace Motor
- Check Motor TP
• Check Harness connection
• Check the Motor resistance.
(see page 15 )