LG LRFD22850ST Service Manual page 34

8-3 RESISTANCE SPECIFICATION OF SENSOR
TEMPERATURE
- 20 ˚C
- 15 ˚C
- 10 ˚C
- 5 ˚C
0 ˚C
+ 5 ˚C
+ 10 ˚C
+ 15 ˚C
+ 20 ˚C
+ 25 ˚C
+ 30 ˚C
+ 40 ˚C
+ 50 ˚C
• The resistance of the SENSOR has a ±5% common difference.
• Measure the resistance of the SENSOR after leaving it for over 3 minutes in the measuring temperature.
This delay is necessary due to sensor response speed.
• Measure the F-SENSOR, SUPER FROST SENSOR, R1, R2-SENSOR after disconnect CON5 of PWB ASSY, MAIN.
RESISTANCE OF FREEZER
SENSOR
22.3 KΩ
16.9 KΩ
13.0 KΩ
10.1 KΩ
7.8 KΩ
6.2 KΩ
4.9 KΩ
3.9 KΩ
3.1 KΩ
2.5 KΩ
2.0 KΩ
1.4 KΩ
0.8 KΩ
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RESISTANCE OF REFRIGERATOR &
DEFROST SENSOR & ROOM SENSOR
77 KΩ
60 KΩ
47.3 KΩ
38.4 KΩ
30 KΩ
24.1 KΩ
19.5 KΩ
15.9 KΩ
13 KΩ
11 KΩ
8.9 KΩ
6.2 KΩ
4.3 KΩ