LG RC9011 Series Service Manual page 24

DIAGOSTIC TEST
11
Test 3 Motor check
Trouble Symptom : Motor malfunction, Occurrence of the "Clean filter" repeatedly
Measurement condition :
RLY1
• Power cord is unpluged.
• Door is closed.
• Check the user condition.
- Put over load into drum?
- Normally Input Voltage and Hertz?
• Pre-Check door switch
(If door switch has contact problem, pump motor is not working.)
• Before check process, Check
the motor rotating by the
Diagnostic test mode "See the
19 page".
• When power is on and press
the start button, motor is
rotating.
• During operation, motor noise
is occurred ?
With RLY1, BL2 being unplugged
BL2
from Controller,
1) RLY1
2) RLY1
measurement ranges 18Ω~26Ω ?
• Check controller
-See page 17
(PCB Assembly Lay-out)
1 - BL2 1 resistance
- BL2 resistance
1 2
23
• Check the harness connection.
- Motor part : Blue 2 pin
housing.
- Controller part : Blue 2 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.
- See component test page.
- 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 )