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

Page 65
Image 65
LG Electronics A3UC363FA0(LMU360CE) service manual Self-diagnosis Function, Indoor Error, Outdoor Error, Error Indicator

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.