LG LFX28968D Service Manual page 25

Freezer Sensor Error (E FS)
1
Is the Connector disconnected
or loose between Main PCB and
sensor?
CON7
No
2
Check the Sensor resistance.
Is resistance 0Ω (Sensor short)?
No
3
Check the Sensor resistance.
Is resistance OFF (Sensor open)?
No
Reconnect or
Yes
repair the
connector
Change the
Sensor
Yes
Replace the
refrigerator
Yes
4
Check the Sensor resistance.
Is resistance normal?
Yes
5
Check the Temperature and
resistance refer to the table.
No problem?
CON7
th th
15 pin ~ 16 pin
-22ºF / -30ºC
-13ºF / -25ºC
-4ºF / -20ºC
5ºF / -15ºC
14ºF / -10ºC
23ºF / -5ºC
32ºF / 0ºC
Yes
6
Explain to customer
Resistance [Ω]
40k
30k
23k
17k
13k
10k
8k