LG General Wall Mounted-Inverter Type - Manual (Page 50)

50 Room Air Conditioner
Part 4 Trouble Shooting
4
• Heat-sink TH. is damaged(short or open).
• Heat-sink Temp. is over 95
°C(203°F)
• Damage or defect on the sensing circuit of outdoor pcb assembly.
(R01H, R02H, C01H)
Heat-sink Temp. is over
95
°C(203°F)
Heat-sink TH.
is open or short
Heat-sink TH. in INV-IC is
Right ? Sensing circuit of outdoor
pcb is right ?
YES
No
Check heat-sink TH.
- Measure resistance of TH.
(about 10k
Ω at 25°C(77°F))
Heat-sink TH is connected to
outdoor PCB assembly?
YES
No
- Connect to CN-TH2 in
outdoor PCB assembly
No
- Check soldering state of
R01H, R02H, C01H
Check flow
Description Cause of error Error code