LG LFXC24726S - Page 37

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TEST MODE 1 Voltage [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
2
Check the Defrost control part.
Is heater resistance 42~50Ω ?
No
Yes
Change
Fuse-M
4
Check the Heater Voltage.
Is voltage 112~116V?
Yes
3
Check the Defrost control part.
Is Defrost Sensor resistance
22kΩ↑or OFF?
OFF
22kΩ↑
Replace
product
Input Test 3 Mode
(Push the button 3 times)
1. Check the
input Voltage
2. Replace
Main PCB
TEST MODE 3 Voltage [V]
CON3
6
h
pin ~ 10
th
pin
112V ~ 116V
5
Check the Heater Voltage.
Is voltage 0V?
Yes
Input Test 1 Mode
(Push the button 1 times)
Replace
Main PCB
No
No
TEST MODE 1 RESISTANCE [Ω]
CON3
6
th
pin 10
th
pin
42~50Ω
CON7
13
th
pin ~ 14
th
pin
Resistance [Ω]
23ºF / -5ºC 38k
32ºF / 0ºC30k
41ºF / 5ºC24k
50ºF / 10ºC 19.5k
59ºF / 15ºC 16k