LG LFXS32726 Series - Page 36

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CON3
SymptomCheck Point
1. F dH 1. Check the door gasket
2. Check the defrost control parts
3. Check the PCB output voltage
4. Check defrost heater
Defrost Control Parts
Defrost
Heater #1
Fuse-M
Defrost
Sensor
Defrost
Heater #2
Part Resistance [Ω]
FUSE-M 0.2 ↓
DefrostHeater
(1) 60 ~ 70
(2) 140 ~ 170
To talHeater
Resistance
40 ~ 50
DefrostSensor22k↑
TEST MODE 3Voltage [V]
CON3
3
rd
-10
th
pin
110 ~ 120
TEST MODE 1Voltage [V]
CON3
3
rd
-10
th
pin
0V
8-6. Defrost Heater Error (F dH)