LG Electronics General Wall Mounted-Inverter Type manual

Part 4 Trouble Shooting

Error code	Description	Cause of error
	Heat-sink Temp. is over	• Heat-sink TH. is damaged(short or open).
	95°C(203°F)	°	°	F)
4		• Heat-sink Temp. is over 95 C(203
	Heat-sink TH.
		• Damage or defect on the sensing circuit of outdoor pcb assembly.
	is open or short
		(R01H, R02H, C01H)

Check flow

Heat-sink TH is connected to outdoor PCB assembly?

No

YES

Heat-sink TH. in INV-IC is Right ?

No

YES

Sensing circuit of outdoor pcb is right ?

No

-Connect to CN-TH2 in outdoor PCB assembly

Check heat-sink TH.

-Measure resistance of TH. (about 10kΩ at 25°C(77°F))

-Check soldering state of R01H, R02H, C01H

50Room Air Conditioner