LG Split System Air Conditioner Error Code Troubleshooting – Maintenance

LG Split System Air Conditioner Error Code Troubleshooting – Maintenance

LG Split System Air Conditioner Troubleshooting Complete List of LG Air Conditioner Multi Split Units and Inverter Fault Codes. When error codes appear on the LG AC Remote Control or LG AC LED Panel Wall Unit, it informs the user that there is a problem with the LG AC Unit. The error code that is displayed will let you know about the problem or issue you are having with the AC.

Knowing the meaning or definition of an error code will help you understand and troubleshoot exactly the part that needs to be fixed, repaired, cleaned or replaced. You can then clean, fix or replace the part yourself to save money.

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When a fault or error occurs with your LG AC unit a 2, 3 or 4 digit code will appear on the remote control LED display. If your LG AC unit does not have the remote control that came with the unit, a 2, 3 or 4 digit error code will be displayed on the LED panel on the front of the indoor unit.

LG AC Location of LEDs

Note: If more than two errors occur at the same exact time, the error code with the lower number will be shown on the first display.

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The first 3 LG AC errors are the most commonly reported – that’s why they are listed first and out of order = These lights are flashing – CH05 – CH10

LG Air Conditioner Error = Lights Flashing

– Turn off the circuit breaker in your AC unit and then turn it on again.

-If there is no loose connection then your air conditioner will start its operation normally.

– Check the wiring connections for any loose connections in the unit.

Air conditioner light may blink due to low refrigerant charge.

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LG Split System Air Conditioner Error Code = C5 or CH05

LG AC Fault Definition = communication between indoor and outdoor units

flashing light = 5

Display = Indoor Outdoor

Indoor Operation = OFF

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LG Split System Air Conditioner Error Code = CA or CH10

LG AC Fault Definition = Discharge Temperature Over 130°C – Faulty Discharge Thermistor

flashing light = 10

Display = Indoor Outdoor

Indoor Operation = ON

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LG Split System Air Conditioner Error Code = C1 or CH01

LG AC Fault Definition = Indoor Temperature Sensor Open or Closed Circuit

Light Will Flash = 1

display = indoor

Indoor Operation = ON

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LG Split System Air Conditioner Error Code = C2 or CH02

LG AC Fault Definition = Outdoor temperature sensor open or closed circuit – Outside air or piping temperature thermistor error

(measured the resistance of two thermistors)

flashing light = 2

Display = Indoor Outdoor

Indoor Operation = ON

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LG Split System Air Conditioner Error Code = C3 or CH03

LG AC Fault Definition = Communication (Indoor Wired R/Control) Data Communication Fault

flashing light = 3

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LG Split System Air Conditioner Error Code = C4 or CH04

LG AC Fault Definition = Heat-sink temperature sensor open or closed circuit

flashing light = 4

Display = Indoor Outdoor

Indoor Operation = ON

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LG Split System Air Conditioner Error Code = C5 or CH05

LG AC Fault Definition = communication between indoor and outdoor units

flashing light = 5

Display = Indoor Outdoor

Indoor Operation = OFF

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LG Split System Air Conditioner Error Code = C6 or CH06

LG AC Fault Definition = Excessive Current on Inverter DC Power Circuit – DC Peak Power

flashing light = 6

Display = Indoor Outdoor

Indoor Operation = Shutdown

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LG Split System Air Conditioner Error Code = C7 or CH07

LG AC Fault Definition = Excessive Compressor Current

flashing light = 7

Display = Indoor Outdoor

Indoor Operation = Shutdown

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LG Split System Air Conditioner Error Code = C8 or CH08

LG AC Fault Definition = indoor fan not spinning

flashing light = 8

display = indoor

Indoor Operation = OFF

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LG Split System Air Conditioner Error Code = C9 or CH09

lg ac fault definition = external fan not spinning

flashing light = 9

Display = Indoor Outdoor

Indoor Operation = OFF

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LG Split System Air Conditioner Error Code = CA or CH10

LG AC Fault Definition = Discharge Temperature Over 130°C – Faulty Discharge Thermistor

flashing light = 10

Display = Indoor Outdoor

Indoor Operation = ON

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LG Split System Air Conditioner Error Code = Flashing CH32

LG AC Fault Definition = Discharge temperature is high – Unit may be low on refrigerant or airflow is blocked – Dirty coil or air filter

display = indoor

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LG Split System Air Conditioner Error Code = CC

LG AC Fault Definition = EEPROM Error

Flashing light = 2+1

display = outdoor

Indoor Operation = ON

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LG Split System Air Conditioner Error Code = CD

LG AC Fault Definition = Inverter Module Error

flashing light = 3+1

Indoor Operation = ON

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LG Split System Air Conditioner Error Code = CL

LG AC Fault Definition = Child Lock Function Selected – No Error – Press the Timer and Minimize buttons at the same time for 3 seconds to toggle ON/OFF

internal state = on

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LG Split System Air Conditioner Error Code = HL

LG AC Fault Definition = High Limit (Float Switch) – Float Switch Open Circuit

internal state = off

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LG Split System Air Conditioner Error Code = Po

LG AC Fault Definition = System in power mode – (no fault)

display = indoor

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LG Split System Air Conditioner Error Code = Lo

LG AC Fault Definition = System in Test Mode (No Fault)

display = indoor

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LG Split System Air Conditioner Error Code = 01

LG AC Fault Definition = Air Sensor (Open/Short) – Open/Short Circuit

internal state = off

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LG Split System Air Conditioner Error Code = 02

LG AC Fault Definition = Inlet Pipe Sensor – Open / Short Circuit

internal state = off

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LG Split System Air Conditioner Error Code = 03

LG AC Fault Definition = Communication (Indoor Wired R/Control) – Communication Issue

internal state = off

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LG Split System Air Conditioner Error Code = 04

LG AC Fault Definition = Drain Pump / Float Switch – Float Switch Open Circuit (High Level Water Alarm)

internal state = off

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LG Split System Air Conditioner Error Code = 05

LG AC Fault Definition = Communication (Indoor Outdoor) – Communication Issue

internal state = off

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LG Split System Air Conditioner Error Code = 06

LG AC Fault Definition = Outlet Pipe Sensor – Open / Short Circuit

internal state = off

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LG Split System Air Conditioner Error Code = 07

LG AC Fault Definition = Different Operation Mode – Indoor units set to different operation modes

internal state = off

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LG Split System Air Conditioner Error Code = 21

LG AC Fault Definition = (Compressor Over-Current) – Compressor Malfunction, IPM Fault

LED01G = 2 bar (red)

LED02G = 1 bar (green)

external position = off

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LG Split System Air Conditioner Error Code = 22

LG AC Fault Definition = CT2 Max. Current – Current 14A . Is

LED01G = 2 bar (red)

LED02G = 2 bars (green)

external position = off

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LG Split System Air Conditioner Error Code = 23

LG AC Fault Definition = DC Link Low Voltage – DC Link Voltage

LED01G = 2 bar (red)

LED02G = 3 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 24

LG AC Fault Definition = Low / High Pressure – Low / High Press Switch Open

LED01G = 2 bar (red)

LED02G = 4 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 25

LG AC Fault Definition = AC Low / AC High Voltage – Abnormal AC Voltage Input

LED01G = 2 bar (red)

LED02G = 5 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 26

LG AC Fault Definition = DC Compressor Position

LED01G = 2 bar (red)

LED02G = 6 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 27

LG AC Fault Definition = PSC Fault (Reactor)

LED01G = 2 bar (red)

LED02G = 7 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 28

LG AC Fault Definition = DC Link High Voltage – DC Link Voltage 420V . Is

LED01G = 2 bar (red)

LED02G = 8 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 32

LG AC Fault Definition = Discharge Pipe Temp High (INV)

LED01G = 3 times (red)

LED02G = 2 bars (green)

external position = off

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LG Split System Air Conditioner Error Code = 33

LG AC Fault Definition = Discharge Pipe Temp High (cons)

LED01G = 3 times (red)

LED02G = 3 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 40

LG AC Fault Definition = CT Circuit Malfunction

LED01G = 4 times (red)

external position = off

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LG Split System Air Conditioner Error Code = 41

LG AC Fault Definition = D-PIPE SENSOR INV (Open/Short) – Open/Short Circuit

LED01G = 4 times (red)

LED02G = 1 bar (green)

external position = off

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LG Split System Air Conditioner Error Code = 44

LG AC Fault Definition = Air Sensor Open / Short Circuit

LED01G = 4 times (red)

LED02G = 4 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 45

lg ac fault definition = condition. Pipe Sensor Open / Short Circuit

LED01G = 4 times (red)

LED02G = 5 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 46

LG AC Fault Definition = Suction Pipe Sensor Open / Short Circuit

LED01G = 4 times (red)

LED02G = 6 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 47

LG AC Fault Definition = D-Pipe Sensor Cons Open / Short Circuit

LED01G = 4 times (red)

LED02G = 7 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 48

LG AC Fault Definition = D-Pipe and Air Sensor (Open) – Dual Sensor Unplugged

LED01G = 4 times (red)

LED02G = 8 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 51

LG AC Fault Definition = Over Capacity – Over Load Combination

LED01G = 5 times (red)

LED02G = 1 bar (green)

external position = off

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LG Split System Air Conditioner Error Code = 52

LG AC Fault Definition = Communication Error (Main Micro Sub Micro) – Bad / Loss of communication

LED01G = 5 times (red)

LED02G = 2 bars (green)

external position = 0ff

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LG Split System Air Conditioner Error Code = 53

LG AC Fault Definition = Communication Error (Indoor Outdoor) – Bad / Loss of communication

LED01G = 5 times (red)

LED02G = 3 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 54

LG AC Fault Definition = Outdoor 3-Phase Power Supply Reverse Phase / Missing Phase – Wrong Wiring

LED01G = 5 times (red)

LED02G = 4 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 60

LG AC Fault Definition = EEPROM Check Sum – Check Sum Mismatch

LED01G = 6 times (red)

LED02G = (Green)

external position = off

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LG Split System Air Conditioner Error Code = 61

LG AC Fault Definition = Cond Pipe Sensor Temp High – Cond Temp High

LED01G = 6 times (red)

LED02G = 1 bar (green)

external position = off

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LG Split System Air Conditioner Error Code = 62

LG AC Fault Definition = Heat-sink Sensor Temp High

LED01G = 6 times (red)

LED02G = 2 bars (green)

external position = off

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LG Split System Air Conditioner Error Code = 63

LG AC Fault Definition = Cond Pipe Sensor Temp Low

LED01G = 6 times (red)

LED02G = 2 bars (green)

external position = off

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LG Split System Air Conditioner Error Code = 65

LG AC Fault Definition = Heat-sink Sensor Open / Short Circuit

LED01G = 6 times (red)

LED02G = 5 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 67

LG AC Fault Definition = Outdoor BLDC Fan Lock – Fan Motor / Circuit Problem

LED01G = 6 times (red)

LED02G = 7 times (Green)

external position = off

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LG Split System Air Conditioner Error Code = 105

LG AC Fault Definition = Comus Error (Main Board Fan Board) – Bad / Loss of communication

LED01G = 6 times (red)

LED02G = 5 times (Green)

external position = off

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LG AC Split System Error Charts and Lists

LG Split System Air Conditioner Error Indicator

LG Split System Air Conditioner Troubleshooting

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LG Split System Air Conditioner Error Code 2

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LG Split System Air Conditioner Error Code 3

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LG AC Inverter Error Charts & Lists

LG Inverter Air Conditioner Error Code 1

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LG Inverter Air Conditioner Error Code 2

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YOU CAN ALSO WATCH THIS VIDEO LG INVERTER AC ERROR CODES

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YOU CAN ALSO WATCH THIS VIDEO LG AC ERROR CODES

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