LG AC Error Code List PDF

LG AC Error Code List - Summary

LG Corporation Company is a very successful company in electrical goods. It was founded on 5 January 1947 in Busan, South Korea. It was founded by Koo In-Hwoi and the Headquarters of the company is located in Seoul, South Korea.

LG Electroinics, LG Uplus, LG Chem, LG CNS and many more are the popular subsidiaries of the company. If you are using the LG air conditioner then you should go through the LG Split AC Error Code List pdf so that you understand the errors.

LG Split AC Error Code List 2023

Indoor Unit Faults

Error Code	Possible Cause
		1	Indoor unit room temperature sensor error
2	Indoor unit inlet pipe sensor error
4	Float switch error (optional)
5	Communication error between indoor unit and outdoor units
6	Indoor unit outlet pipe sensor error
9	Indoor unit EPROM error
10	Indoor unit BLDC motor fan lock
12	Indoor unit middle pipe sensor error

‍Outdoor Unit Faults

Error Code	Possible Cause
		21	DC Peak (IPM Fault); Compressor DC voltage was too high
22	Current Transformed (CT2) error; Alternating current (AC) input too high
23	DC Link Low Volt
25	AC Low/High Volt
26	DC Comp Position Error (not providing rotation), Locking
27	PSC Fault; Current to inverter compressor between AC and DC converter circuit too high
28	Inverter compressor DC voltage is too high
29	Inverter compressor amperage is too high
31	Current-to-current transformer (CT) thermistor is too low
32	Inverter Compressor Discharge Pipe (D-Pipe) Overheat
40	CT Sensor Error; Thermistor is disconnected or shorted out
41	D-Pipe Sensor INV is disconnected or shorted out
44	Outdoor Air Sensor is disconnected or shorted out
45	Middle thermistor of outdoor unit condenser coil is disconnected or shorted out
46	Outdoor unit suction line thermistor is disconnected or shorted out
48	Outdoor unit coil outlet (liquid line) thermistor is disconnected or shorted out
53	Communication failure from outdoor unit to indoor unit
60	Outdoor unit printed circuit board (PCB) EPROM check sum error
61	Outdoor unit condenser coil temperature is too high
62	Outdoor unit inverter compressor PCB heat sink temperature is too high
63	Condenser coil pipe thermistor temperature is too low
65	Heat sink thermistor has disconnected or has shorted out
67	Outdoor brushless direct current (BLDC) fan motor lock error

LG Inverter Split AC Error Code List

c1 or ch1	Indoor temperature sensor open or closed circuit
c2 or ch2	Outdoor temperature sensor open or closed circuit
c4 or ch4	Heat sink temperature sensor open or closed circuit
c5 or ch5	Communication indoor and outdoor units
c6 or ch6	Excessive current at inverter DC power circuit
c7 or ch7	Excessive compressor current
c8 or ch8	Indoor fan not rotating
c9 or ch9	Outdoor fan not rotating
ca or ch10	Faulty discharge thermistor
cc	EEPROM error
cd	Inverter module error
po	System in power mode ( not a fault )
lo	System in test mode ( not a fault )

You can download the LG AC Error Code List PDF using the link given below.

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LG AC Error Code List PDF Download