LG DLE4870 Series, Service Manual

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. Thermal cut off Measure resistance of terminal
to terminal
Open at 284 41°F
(140 5°C)
Auto reset -31°F (-35°C)
Same shape as Outlet Thermostat.
If thermal fuse is open must
be replace
Resistance value
Continuity (250°F ) < 1
Ω
• Heater case-
Safety
• Electric type
• Heater case -
Hi limit
• Electric type
• Blow housing -
Safety
• Electric type
Measure resistance of terminal
to terminal
Open at 257 9°F
(125 5°C)
Close at 221 9°F
(94
Measure resistance of terminal
to terminal
Open at 185 41°F
(85 5°C)
Close at 167 41°F
(75 5°C)
Same shape as Thermal cut off.
Measure resistance of terminal
to terminal
Resistance value
Resistance value < 5
Ω
Resistance value
Resistance value < 5
Ω
Resistance value < 1
Ω
Resistance value
Resistance value
Resistance value < 1
Ω
Resistance value:
80
Ω
~
100
Ω
1. lever open
Resistance value < 1
Ω
2. Lever push (close)
Resistance value
• Check Top Marking:
N140
2.Hi limit Thermostat
(Auto reset)
3.Outlet Thermostat
( Auto reset)
• Check Top Marking:
N85
4. Lamp holder
5. Door switch
Measure resistance of the
following terminal
1) Door switch knob: open
Terminal: COM - NC(1-3)
Terminal: COM - NC (1-2)
2) Door switch push: push
Terminal: COM - NC (1-3)
Terminal: COM - NC (1-2)
6. Idler switch
Measure resistance of the
following terminal:
COM - NC
!
CAUTION
5
COMPONENT TESTING INFORMATION
When checking the Component, be sure to turn the power off, and do voltage discharge sufficiently.
Component Test Procedure Check result Remark
7°C)
12