Test 3 Motor Test - LG DLGX8001 Service Manual

Test 3
Motor Test
Caution
Trouble Symptom
Measurement Condition
Tap Relay Connector
Blue(X562) Yellow(X2)
BK WH
BN BK
Tap Relay Connector
BL2
Yellow(X2)
YL
BN BK
③ ①
Before measuring resistance, be sure to turn the power off and discharge voltage.
(When discharging, contact the metal plug of power cord with ground wire.)
Drum dose not rotate; no blower function, no heater function.
Turn the dryer's power off, then measure resistance.
Is resistance below 3
blue tab relay connector(X562) and Brown wire on
the yellow tab relay connector(X2)
Measure while door is closed.
Is resistance below 3
yellow tab relay connector(X2) and Connect
BL2-③(Yellow wire) ?
Measure while door is closed.
Is resistance below 3 Ω between connector
WH4- (Yellow wire) and WH4-
Is resistance below 1Ω between terminals
of outlet thermostat attached to blower housing?
Does idle switch attached to motor bracket
operate level by drum belt?
(Not operating lever is normal.)
Is resistance below 1 Ω between idler switch
terminals?
• r. (Refer to 'motor diagram & check')
•
Ω between White wire on the
NO
Ω between Brown wire on the
YES
(Brown wire)?
NO
YES
YES
35
• Replace control.
YES
(Relay check)
• Check controller
connector.
• Check if door frame
presses door switch
knob.
NO
• Check door switch.
• Check harness
connection.
• Replace control.
(Relay check)
YES
• Check controller
connector.
• Replace outlet
• Thermostat.
NO
(Refer to
'component')
• Check idler assembly.
• Drum belt cuts off
• Drum belt takes off
YES
from motor pulley.
• Replace idler
NO
switch.