LG LMXS28626 Series - Poor Cooling in Fresh Food Section Troubleshooting

Symptom Check Point
1. Poor cooling in Fresh
food section
1. Check the sensor resistance
2. Check the air flow
3. Check the air Temperature
4. Check the R-Damper motor voltage
8-16. Poor cooling in Fresh food section
CON7 15
th
pin ~ 18
th
pin Resistance [Ω]
23ºF / -5ºC 38k
32ºF / 0ºC 30k
41ºF / 5ºC 24k
50ºF / 10ºC 19.5k
59ºF / 15ºC 16k
Duct Status
Air Flow Windy
Air Temperature Cold
Duct
Fan Motor
TEST MODE 1 Voltage [V]
CON7 12
th
pin ~ 14
th
pin 12V
CON7 16
th
pin ~ 14
th
pin 0V<Voltage<5V
CON7 10
th
pin ~ 14
th
pin 0V<Voltage<5V
CON6
CON1
CON201
CON5
CON7
CON2 CON3
R-Sensor
F-Fan motor