LG TD-C7014 series Service Manual page 23

11 DIAGOSTIC TEST
Test 3 Motor check
Trouble Symptom : Motor malfunction, ventilation error
Measurement condition : • Power cord is unplugged.
WH2 BL2
1 2 1
• Door is closed.
• Pre-Check door switch
(If door switch has contact problem, pump motor is not working.)
• When power is on, motor is
rotating.
• During operation, motor noise
Capacitor
is generated. And drum and
blower are not working.
With WH2, BL2 being unplugged
from Controller,
WH2
WH2
2
measurement ranges 18 Ω~26 Ω ??
• Check controller
- See page 15
(PCB Assembly Lay-out)
NO
NO
- BL2 resistance
- BL 2 resistance
YES
2 3
• Check or replace
YES
Controller
- TR1, TR2 broken
• Check Capacitor volume.
- See component test page.
YES
- See the left picture.
• Check belt is burst.
• Check structural
restriction.
• Check or replace Motor
NO - Check Motor TP
• Check Harness
connection