LG LFX25973 Series Service Manual page 51

11-7 Damper
Function The damper supplies the cold air at freezer room to chillroom
by using the damper's plate. Chillroom is colder than before
when damper's plate is open. When damper's plate is close,
chillroom's temperature will rise.
How to
Measure
Blue
1
3 Yellow
Check the
Check the resistance between connectors 1,3 and 2,4 .It means
check whether or not applying an electric current. If there is
resistance, it means the damper not inferiority
Standard Damper
Red and Yellow
Red
2
White
3
,
2 4
Test Points Result
373 ~ 456 Ω
< Damper Circuit >
Check the
Test Points
Blue and White
- 51 -
Blue
1
White
3
Check the ,
1 3
< extension >
,
1 3
Result
373 ~ 456 Ω