Diagostic Test - LG TD-C70070E Service Manual

DIAGOSTIC TEST

10
Test 1 : ELECTRIC SUPPLY & CONTROL CHECK
Trouble Symptom : No power to the dryer or the controller
Measurement condition : Power is on.
RLY3
2
[ Caution] Electric shock. Please test after grounding check.
Power voltage is within
standard range
(AC 215V~245V)?
•
RLY1
2
•
•Check connection of power cord
•Check White 1pin(Red wire),
Check the short of harness
assembly and the
connection(WH1)
YES
Check after pulling Black(RLY1),
Blue(RLY3) 2 pin
connector out from controller.
Check the range of two pin
(Red)~ (Black) is within
AC 215~245V?
NO
and harness assembly.
White 2pin(Black & white wires)
of connector and secure that
range is between AC 215~245V?
YES
※In the case that the dryer is not working, when controller is
powered and display button is properly working, Check
RLY1,RLY2, RLY3, WH1 in the controller.
20
• Check the
- Circuit breaker
NO
• Check or replace the
controller
YES
• Check or replace
the power cord
NO