LG LFXS30726 series - Storing Frozen Food

- 36 -
TEST MODE 1Voltage [V]
CON3
6
th
pin 10
th
pin
0V
Defrost Heater Error (F dH)
1
Replace the
Door gasket
Check the Door gasket .
Is door gasket damaged?
Yes
No
6
Check the Heater Voltage.
Is voltage 112~116V?
Yes
Input Test 3 Mode
(Push the button 3 times)
1. Check the
input Voltage
2. Replace
Main PCB
TEST MODE 3Voltage [V]
CON3
6
h
pin ~ 10
th
pin
112V ~ 116V
7
Check the Heater Voltage.
Is voltage 0V?
Yes
Input Test 1 Mode
(Push the button 1 times)
Replace
Main PCB
No
No
2
Reconnect
Is the Connector Properly
connected?
No
Yes
3
Is the resistance value of Fuse-M
less than 0.2Ω?
No
Yes
Change
Fuse
M
4
Is the resistance value of Heater
as follow?
No
Yes
Replace
Heater
Measurement PointResistance [Ω]
(1)62~70
(2)144~167
5
Is the resistance value of defrost
sensor as
follow?
Resistance is influenced by
temperature.
Yes
Replace
Defrost
Sensor
No
8
Explain to customer
CON7
19
th
pin ~ 20
th
pin
Resistance [Ω]
23ºF /
- 5ºC38k
32ºF / 0ºC30k
41ºF / 5ºC24k
50ºF / 10ºC 19.5k
59ºF / 15ºC 16k