LG R410A Service Manual page 154

Troubleshooting Guide
Error
Error Contents
Code
Excessive rise of
the inverter
32
comp.(A)
discharge temp .
I Defect inspection method :
1) In case there is no actual rise of the discharge temp of the inverter comp.(A) but the sensor shows abnormal
rise of the temp, then please replace the discharge pipe sensor
- Discharge temp sensor 10°C = 362kΩ, 25°C = 200kΩ,
In case there is no actual rise of the discharge temp of the inverter comp.(A),
then please replace the outdoor MAIN PCB.
2) Check the indoor / outdoor LEV / Hot gas / Liquid Injection valve connector connecting condition.
Error
Error Contents
Code
Excessive rise of
the inverter
33
comp.(B)
discharge temp .
I Defect inspection method :
1) In case there is no actual rise of the discharge temp of the inverter comp.(B) but the sensor shows abnormal
rise of the temp, then please replace the discharge pipe sensor
- Discharge temp sensor 10°C = 362kΩ, 25°C = 200kΩ,
In case there is no actual rise of the discharge temp of the inverter comp.(B),
then please replace the outdoor MAIN PCB.
2) Check the indoor / outdoor LEV / Hot gas / Liquid Injection valve connector connecting condition.
154 Outdoor Unit
Meaning
Inverter comp. Off due to
the excessive rise in dis-
charge temp
50°C = 82kΩ, 100°C = 18.5kΩ
Meaning
Inverter comp. Off due to
the excessive rise in dis-
charge temp
50°C = 82kΩ, 100°C = 18.5kΩ
Main Causes
1. Inverter comp. discharge temp.
sensor defect
2. Refrigerant shortage / leakage
3. Defective LEV
4. Defective Liquid Injection Valve
5. Defective Hot Gas Bypass Valve
Main Causes
1. Inverter comp. discharge temp.
sensor defect
2. Refrigerant shortage / leakage
3. Defective LEV
4. Defective Liquid Injection Valve
5. Defective Hot Gas Bypass Valve
Error display
position
Concerned
Remote con-
troller
Panel Display
Outdoor unit
Error display
position
Concerned
Remote con-
troller
Panel Display
Outdoor unit