LG F4J8GNP2W Service Manual page 30

Symptom
1. PRESSURE
SENSOR ERROR (PE)
Pressure Sensor
MAIN PWB
Micom
Pressure
Sensor
(1) ~ (3)
1.Check Electric Wiring.
2.Check Pressure sensor's Resistance.
3.Check Air chamber and Tube clogged.
(3)
(2)
(1)
Resistance
Main
PWB
[Ω]
21 ~ 23
th
BL6 4 ~
th
BL6 5
(± 10%)
Check Point
BL1
5V
30
BL6
1 1
2 2
3 3
4 4
5 5
6 6
VT WH SB
1
NA
1
PRESSURE
SENSOR
2 3
2 3