LG LFXS24553S Service Manual page 74

11-2 Sheath Heater
Function Sheath heater is a part for defrost. All heating wire is connected to only one line. To check if
the part is defective, 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 300W Voltage 120V R
But if the ohm meter indicate infinity the Sheath heater is bad.
Standard
= ,
Sheath heater (at all temperature)
Test Point
(1) to (2)
= , =(
120x120 300 48
Result
45 ~ 51Ω
(1) (2)
)/ =
Ω