LG Electronics A3UC363FA0(LMU360CE) Self-diagnosis Function, Indoor Error, Outdoor Error

Page 65

Troubleshooting Guide

Self-diagnosis Function

■Error Indicator

•The function is to self-diagnoisis airconditioner and express the troubles identifically if there is any trouble.

•Error mark is ON/OFF for the operation LED of evaporator body in the same manner as the following table.

•If more than two troubles occur simultaneously, primarily the highest trouble fo error code is expressed.

•After error occurrence, if error is released, error LED is also released simultaneously.

•To operate again on the occurrence of error code, be sure to turn off the power and then turn on.

•Having or not of error code is different from Model.

LED1 LED2

Indoor Error

Error code

Description

MPS Variable

LED1

LED2

Indoor Status

 

 

 

 

 

 

00

No Error

 

 

 

ON

 

 

 

 

 

 

01

Indoor Room Thermistor Error

 

1 time

 

OFF

 

 

 

 

 

 

02

Indoor In-Piping Error

 

2 times

 

OFF

 

 

 

 

 

 

05

Communication Error between In and Out

 

5 times

 

OFF

 

 

 

 

 

 

06

Indoor Out-Piping Error

 

6 times

 

OFF

 

 

 

 

 

 

07

Differnt mode operation

 

7 times

 

OFF

 

 

 

 

 

 

10

Indoor fan motor locked error

 

 

1 times

OFF

 

 

 

 

 

 

Outdoor Error

Error code

Description

MPS Variable

LED1(Red)

LED2(Green)

Indoor Status

 

 

 

 

 

 

33

D-Pipe High(Normal)

 

3 times

3 times

OFF

 

 

 

 

 

 

44

Outdoor Air Thermistor Error(Open/Short)

 

4 times

4 times

OFF

 

 

 

 

 

 

45

Cond Pipe Thermistor Error(Open/Short)

 

4 times

5 times

OFF

 

 

 

 

 

 

47

Const. D-Pipe Thermistor Error(Open/Short)

 

4 times

7 times

OFF

 

 

 

 

 

 

51

Capcity Error(High/Low)

 

5 times

1 times

OFF

 

 

 

 

 

 

Service Manual 65

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Page 64 Page 66
Contents Outdoor Unit A3UH363FA0LMU360HE A3UC363FA0LMU360CE Indoor Unit Room Type Art Cool TypeTable of Contents Outdoor Unit Model Number NomenclatureIndoor Unit Combination table Symbols Used in this ManualInstallation Safety PrecautionsBe sure not to do Be sure to follow the instruction Control box securely Cuit and breakerBe cautious when unpacking Do not place anything on the power cableBe sure the installation area does not deteriorate with age OperationDo not allow water to run into electric parts Nect the power supply cableSmoke comes from product Hurricane arrivesInstall the drain hose to ensure that Keep level even when When the product is soakedInstalling the product Not enter the productAir flow OperationalVents, etc Not use harsh detergents, solWhen cleaning or maintaining Ly. Clean the filter every twoDo not step on or put anyting on the product. outdoor units Do not drink the water drained from the productSplit Type Indoor DimensionsIndoor Unit Outdoor Unit Indoor Unit Product SpecificationsModel A3UC363FA0LMU360CE A3UH363FA0LMU360HE Outdoor Unit Multiple piping modelsInstallation Tools InstallationInstallation Parts Outdoor unit Rooftop InstallationsSelect the best location Multi Piping Type Piping length and elevationFixing Installation PlateStandard Type Open panel front Preparing work for Installation Artcool Type OnlyRemove cover pipe and cover side Drain hose junctionPut an Installation Guide Map on the desired surface Sticking the installation guide map and fixing Indoor unitDrill a hole in the wall Drive the fore plastic anchors into drilled pointsFlaring work Flaring Work and Connection of PipingIndoor Connecting the PipingCheck Wrap the insulation material around the connecting por- tion For left rear piping Plastic bands Insulation material Connection Indoor Drive two screws Panel AssemblyArt Cool Type onlyBad case Good caseRemote Control Preparationoptional Outdoor unit OutdoorConnect the cable to the Indoor unit Connecting the Cable between Indoor Unit and Outdoor UnitOutdoor unit Connect the cable to the Outdoor unitHow to connect wiring to the terminals Connection method of the connecting cableExampleConnect the cable to the indoor unit Drain piping Checking the drainageTo check the drainage Forming the piping Checking method Air Purging and EvacuationPreparation Leakage testFinishing the job Repeat evacuation procedure for each indoor unitEvacuation Additional ChargingSplit, Art Cool Type Test RunningSoft Dry Operation Mode Cooling Mode OperationHeating Mode Operation OperationFuzzy Operation for Cooling Defrost ControlHeatingFuzzy Operation Off-Timer Operation On-Timer OperationAirflow Speed Selection Fuzzy Operation for DehumidificationSleep Timer Operation Off-Timer = On-Timer OperationChaos Swing Mode Chaos Natural Wind ModeBuzzer Sounding Operation Forced OperationSplit Type Indoor Unit Function of Indoor UnitArt Cool Type Indoor Unit IndicatorOperation DefrostDeice control HeatingFunction of Outdoor Unit 15 2nd F Button Remote Control OperationCooling Model , Heat Pump Model To remove the Grille from the Chassis DisassemblyTo remove the Control Box To remove the Motor Cover To remove the Control Box To remove the Motor To remove the EvaporatorBefore removing the Turbo Fan Split Type Schematic DiagramElectronic Control Device Outdoor Outdoor Unit Schematic Diagram Art Cool Type Indoor Unit Wiring DiagramBottom View Components LocationsArt Cool Type Schematic Diagram Component side Solder side Refrigeration Cycle Diagram Troubleshooting GuideA3UH363FA0LMU360HE A3UC363FA0LMU360CEOutdoor Error Indoor ErrorError Indicator Self-diagnosis FunctionTrouble analysis Cycle Troubleshooting GuideProcedure Specification Remedy Electronic Parts Troubleshooting GuideProduct doesnt operate with the remote controller Check Point Comp. on Comp. OFF Compressor/Outdoor Fan are dont operateNector Trouble 4 When indoor Fan does not operateTroubleshooting Guide Check Point Error CodeIndoor air sensor Indoor inlet pipe sensorCommunication line is shorted at GND Power input AC 230V.Outdoor, IndoorError Title Cause of error Check point & Normal condition Outdoor air sensor Title Cause of error Check point & Normal conditionCondensor pipe sensor Pipe sensorWay Valve Liguid Side Way, 3-way ValvePumping down ProcedureAir purging of the charge hose Set the liquid side valve to the closed positionAll amount of refrigerant leaked Mount the valve caps and the service port capsEvacuation Gas Charging Mount the valve stem nuts and the service port nutAfter Evacuation Connect the gauge to the charging cylinderS4, SE chassis Exploded View & Replacement Parts ListLMN090HE Parts List S4, SE chassisS4 chassis SE chassis SP3 Chassis Art Cool Type Filter ASSEMBLY,AIR Cleaner Parts List SP3 chassisA3UC363FA0LMU360CE Code Parts List A3UH363FA0LMU360HE, A3UC363FA0LMU360CEMay No A20474C

A3UH363FA0(LMU360HE), AMNC123DEA0(LMN120CE), AMNC093D4A0(LMN090CE), AMNH123DEA0(LMN120HE), A3UC363FA0(LMU360CE) specifications

LG Electronics is renowned for its innovation in the home appliance sector, particularly in air conditioning systems. Among its diverse range, the AMNC123APM0, A3UC363FA0, AMNH123DEA0, AMNC093D4A0, and AMNC123DEA0 model series stand out for their advanced features and energy efficiency.

The AMNC123APM0, also referred to as LMAN120CNS, offers a powerful air conditioning solution ideal for medium to large spaces. Featuring a sleek design, it combines aesthetics with functionality. This model utilizes LG's inverter technology, which helps maintain a consistent temperature while significantly reducing energy consumption. Additionally, it comes equipped with a dual inverter compressor that operates quietly, making it perfect for residential settings.

The A3UC363FA0, or LMU360CE, is another standout model that caters to the installation needs of multi-zone systems. Its flexibility allows users to connect multiple indoor units, ensuring efficient air distribution across different spaces. This model also features advanced filtration systems that improve indoor air quality by reducing allergens and other harmful particles.

AMNH123DEA0, branded as LMN120HE, introduces enhanced energy efficiency through its intelligent energy management systems. This unit is designed with user-friendly controls and smart technology to optimize performance based on user preferences. Its compact design makes it suitable for smaller spaces while still delivering powerful cooling and heating functions.

The AMNC093D4A0, known as LMN090CE, is perfect for residential applications where space is a consideration. It boasts a high SEER (Seasonal Energy Efficiency Ratio) rating, indicating low energy consumption while still providing optimal cooling. The model is equipped with a variety of operational modes, including dehumidification and fan-only options.

Finally, the AMNC123DEA0, or LMN120CE, rounds out this impressive series by offering versatile installation options and silent operation. This model is particularly noted for its robust cooling capabilities and ease of maintenance, ensuring that homeowners can enjoy year-round comfort with minimal disruption.

In summary, LG Electronics has blended efficiency, performance, and design in its latest air conditioning models. With features like inverter technology, multi-zone capabilities, advanced filtration, and quiet operation, these systems cater to modern home cooling and heating requirements while promoting energy conservation. As such, they represent a significant leap in HVAC technology, providing reliable comfort and improved indoor air quality.
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