Symptom
Check Point
2. Not tumbling
1.Check Electric Wiring.
2.Check the Door properly closed.
3.Voltage of the Main PWB.
4. Check Blower thermostat’s Resistance
<Electric / Gas Dryer>
Component
Picture
Test Point
Value
Main PWB
(X2)
NA4③-BL2①
Measure voltage of connector to
connector
①
Tumbling
②
Stop
①
Voltage value = 120Vac
②
Voltage value = 0
Belt Switch
Measure resistance of the following
terminal:
COM – NC
1.Le
ver open
①
Resistance v
alue < 1Ω
2.Le
ver push (Close)
②
Resistance v
alue ≒ ∞
Outlet Thermostat
Measure resistance of terminal to terminal
① Open at 185 ± 41℉ (85 ± 5℃)
② Close - Not
recovery
①
Resistance v
alue ≒ ∞
②
Resistance v
alue < 5Ω
Motor
Measure resistance of terminal to terminal
① Main-Common
② Sub-Common
(Main–Whit
e , Sub-B
r
own , Common-Blue)
①
Resistance value =
4.35Ω±5%(at 75℉)
②
Resistance value =
3.37Ω±5%(at 75℉)
Door switch
COM
NO
NC
Measure resistance of the following terminal
1) Door switch knob: open
①
Terminal: C
OM - NC (1-3)
②
Terminal: C
OM - NO (1-2)
2)Door switch push: push
①
Terminal: C
OM - NC (1-3)
②
Terminal: C
OM - NO (1-2)
①
Resistance v
alue < 1Ω
②
Resistance v
alue ≒ ∞
①
Resistance v
alue ≒ ∞
②
Resistance v
alue < 1Ω
WH4
30