LG LFXS29626, Service Manual

Page: 33 / 105

- 33 -
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.
(1) Is Fuse-M resistance 0Ω?
(2) Is Def Heater resistance
35~40Ω?
No
Yes
Change
Fuse-M
Def Heater
4
Check the Heater Voltage.
Is voltage 112~116V?
Yes
Def Sensor
Def Heater
Fuse-M
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)
Replace
Main PCB
Yes
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
6
Explain to customer
Def Sensor
Def Heater
Fuse-M