LG LFCS27596S Service Manual page 30

Defrost Sensor Error (dS F)
1
Is the Connector disconnected
or loose between Main PCB,
Defrost controller and Sensor?
CON7
No
2 Check the Sensor resistance.
Is resistance 0Ω (Sensor short)
or resistance Infinity Ω ( Sensor
open ) ?
No
3
Check the Sensor resistance.
Is resistance normal?
Yes
Reconnect or
Yes
repair the
connector
Change the
Sensor
Yes
4 Check the Temperature and
resistance refer to the table.
No problem?
CON7
th th
19
pin ~ 22 pin
23ºF / -5ºC
32ºF / 0ºC
41ºF / 5ºC
50ºF / 10ºC
59ºF / 15ºC
Yes
5
Explain to customer
Change
Main
No
PCB
Resistance [Ω]
38k
30k
24k
19.5k
16k