LG DLGX3901 series Service Manual

41
Test 3
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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 between connector
BL2-
(White wire) and WH4- (Brown wire)?
Measure while door is closed.
• Replace control.
(Relay check)
• Check controller
connector.
• Check if door frame
presses door switch
knob.
• Check door switch.
• Check harness
connection.
• Replace control.
(Relay check)
• Check controller
connector.
• Replace outlet
• Thermostat.
(Refer to
‘component’)
• Check idler assembly.
• Drum belt cuts off
• Drum belt takes off
from motor pulley.
• Replace idler
switch.
Is resistance below 3 between connector
BL2-
(White wire) and WH4- (Yellow wire)?
Measure while door is closed.
Is resistance below 3 between connector
WH4-
(Yellow wire) and WH4- (Brown wire)?
Is resistance below 1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 between idler switch
terminals?
• Check motor. (Refer to ‘motor diagram & check’)
• Check if control connector is contacted.
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
Caution
Trouble Symptom
Measurement Condition
isY
~o[
40

LG DLGX3901 series Specifications

General

Brand	LG
Model	DLGX3901 series
Category	Dryer
Language	English