40
41
Test 3
Motor Test
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
BL2
WH4
FOR LG TECHNICIAN
40
