Component Testing Information - LG GD1329CGU Service Manual

COMPONENT TESTING INFORMATION

11
ARNING
!
¥ When checking the Component, be sure to turn the power off, and do voltage discharge sufficiently.
¥ Failure to follow these instructions can result in death or electric shock.
Component
. Thermal cut off
¥ Check Top Marking:
N 30
2. Hi limit Thermostat
(Auto reset)
3. Outlet Thermostat
( Auto reset)
¥ Check Top Marking:
N85
5. Door switch
6. Idler switch
Test Procedure
Measure resistance of terminal
to terminal
Open at 266 ±
( 30 ±
Same shape as Outlet Thermostat.
Measure resistance of terminal
to terminal
Open at 257 ±
( 25 ±
Close at 22 ±
( 05 ±
Measure resistance of terminal
to terminal
Open at 85 ±
(85 ±
Close at 49 ±
(65 ±
Same shape as Thermal cut off.
Measure resistance of the
following terminal
) Door switch knob: open
Terminal: COM - NC ( -3)
Terminal: COM - NO ( -2)
2) Door switch push: push
Terminal: COM - NC ( -3)
Terminal: COM - NO ( -2)
Measure resistance of the
following terminal:
COM - NC
Check result
If thermal fuse is open must
be replaced
Resistance value
Continuity (250¡F
Resistance value
Resistance value < 5
Resistance value
Resistance value < 5
Resistance value <
Resistance value
Resistance value
Resistance value <
. lever open
Resistance value <
2. Lever push (close)
Resistance value
48
Remark
Heater case-
Safety
Electric type
) <
Heater case -
Hi limit
Electric type
Blow housing -
Safety
Electric type
If the knob is
pressed, the
state is the
opposite of
what is on the
chart.