LG LBC24360ST Service Manual - Page 40

Sheath Heater, Function, How to, Measure, Standard, Sheath heater at all temperature

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10-2 Sheath Heater Function Sheath heater is a part for defrost. All heating wire is connected to only one line. So we can decide part is defect or not when we check the resistance. How to Measure Standard Set a ohmmeter connect to The 2 housing pin. Measure the 2 pin connected to Sheath Heater. If the ohmmeter indicate (V°øV)/Watt=R is good condition, ex) when watt=350w, voltage=115v R=(115°ø115)/350=38 Ω But the ohmmeter indicate infinitely great Sheath heater is disconnection Sheath heater (at all temperature) Test Point Ressult (1) to (2) 34 ~ 42Ω (1) (2) 40

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10-2 Sheath Heater
Function
Sheath heater is a part for defrost. All heating wire is connected to only one line. So we can
decide part is defect or not when we check the resistance.
How to
Measure
Set a ohmmeter connect to The 2 housing pin.
Measure the 2 pin connected to Sheath Heater.
If the ohmmeter indicate (V°øV)/Watt=R is good condition,
ex) when watt=350w, voltage=115v R=(115°ø115)/350=38
ω
But the ohmmeter indicate infinitely great
Sheath heater is disconnection
Standard
Sheath heater (at all temperature)
Test Point
(1) to (2)
Ressult
34 ~ 42
ω
(1)
(2)
40