Acson A5LC - User Manual

Questions and Answers

M
meganmilesAug 8, 2025
Why is my Acson A5LC not cooling enough?
- A
  Anthony HernandezAug 8, 2025
  If your Acson Air Conditioner is running but not providing sufficient cooling, there are several potential causes. Begin by checking the thermostat setting and ensure it is set to a lower temperature. Make sure that there are no obstructions blocking the air inlet or outlet of the unit; if there are, remove them. For other potential problems such as a dirty condenser coil, insufficient refrigerant, improper water flow rate, or contaminated water in the system, contact your local dealer.
M
Marie MoraAug 14, 2025
What to do if Acson Air Conditioner has airflow but isn't cooling enough?
- M
  Micheal MoralesAug 14, 2025
  If your Acson Air Conditioner is blowing air, but it's not cooling effectively, consider these possible causes. First, check the thermostat to ensure it's properly adjusted to a cooler setting, taking into account the inlet temperature. Clean the filter if it's filled with dust and dirt. Remove any obstacles blocking the air inlet and outlet. Finally, make sure that windows and doors are closed to prevent warm air from entering the room.
R
Ronald PrattAug 20, 2025
How to troubleshoot Acson A5LC Air Conditioner compressor that does not start?
- K
  Keith YoungAug 20, 2025
  If the compressor of your Acson Air Conditioner doesn't start, there could be several reasons. First, check the power supply to ensure the unit is receiving power. Then, inspect the fuses and circuit breakers, replacing any blown fuses or resetting tripped breakers after correcting the fault. Also, check for loose wires and tighten any loose terminal screws. If a safety switch has tripped, determine the cause and correct it to restart the unit. If these steps don't resolve the issue, the contactor or coil might be defective and require repair or replacement. If the compressor is faulty, contact your local dealer.
W
Whitney BishopAug 26, 2025
How to fix Acson Air Conditioner fan that won't start?
- M
  Manuel WilsonAug 26, 2025
  If the fan on your Acson Air Conditioner isn't starting, begin by checking the power supply to ensure the unit is receiving power. If the power supply is fine, the fan motor may be faulty, in which case you should contact your local dealer.
L
lauriedavisAug 31, 2025
Why Acson A5LC Air Conditioner fan runs but compressor won't?
- B
  Brandy GarciaAug 31, 2025
  If the fan of your Acson Air Conditioner is running, but the compressor isn't, it could be due to a couple of reasons. First, check the thermostat setting; if it's set too high, decrease the set temperature for cooling. Also, if the room temperature is excessively low, the unit might be out of its temperature control range, preventing the compressor from running.

Acson A5LC Specifications

General

Brand	Acson
Model	A5LC
Category	Air Conditioner
Language	English

Summary

Model Name

Product Name Description

Lists ACSON product models and their descriptions.

Nomenclature - Indoor Unit

Explains the coding system for indoor unit model names.

Nomenclature - Outdoor Unit

Explains the coding system for outdoor unit model names.

Conversion Table

Provides conversion factors for various units.

Product Mainboard vs. Handset Matrix

Mainboard and Handset Compatibility

Compares main boards with compatible handset models.

Controller Development History

Controller Evolution Timeline

Details the evolution of controller models and their features.

Handset Operating Guide

G6 Handset Operation

Explains operation of the G6 model remote control.

G8 Handset Operation

Explains operation of the G8 model remote control.

G12 Handset Operation

Explains operation of the G12 model remote control.

G18 Handset Operation

Explains operation of the G18 model remote control.

GS02 Handset Operation

Explains operation of the GS02 model remote control.

APJ2 Handset Operation

Explains operation of the APJ2 model remote control.

SLM3 Handset Operation

Explains operation of the SLM3 model remote control.

Sequential Controller Operation

Explains operation of the Sequential Controller.

Netware 3 Handset Operation

Explains operation of the Netware 3 model remote control.

Controller Configuration

Auto Random Restart Configuration

Details jumper settings for auto random restart.

Hot Keep Selection

Explains selection of hot keep functions via switches/jumpers.

Auxiliary Heater Conversion

Details components and steps for adding auxiliary heater.

Multi Split Conversion

Explains conversion to multi-split mode using switches/jumpers.

Sequential Controller Configuration

Details DIP switch settings for sequential controllers.

Sequential Board and LCD Panel Conversion

SQMB01 Board and SQ-LCD Panel Conversion

Instructions for converting SQMB01 boards and SQ-LCD panels.

Chilled Water Fan Coil Unit Configuration

W1 V3 Jumper Settings

Explains jumper settings for W1V3 units.

W2.0 Jumper Settings

Explains jumper settings for W2.0 units.

Unit Conversion Guide

U1.5 to L208 A Conversion

Details conversion steps and parts for U1.5 to L208A models.

WMF U1.4 to L2 EF Conversion

Explains conversion from WMF U1.4 to L2EF models.

Service Diagnosis and Troubleshooting

Self Diagnosis - Wall Mounted F Series

Lists LED indications for Wall Mounted F Series models.

Self Diagnosis - Wall Mounted G Series

Lists LED indications for Wall Mounted G Series models.

Self Diagnosis - Wall Mounted J Series

Lists LED indications for Wall Mounted J Series models.

Self Diagnosis - Ceiling Cassette Series

Lists LED indications for Ceiling Cassette Series models.

Self Diagnosis - Ceiling Exposed Series

Lists LED indications for Ceiling Exposed Series models.

General Checks for Malfunctions

Provides general checks for common AC unit malfunctions.

Troubleshooting by Pressure Readings

Guides troubleshooting based on pressure readings.

Troubleshooting - Electric Circuit Diagnosis

Provides diagnostic flowcharts for electric circuit issues.

Troubleshooting - Refrigerant Circuit Diagnosis

Provides diagnostic flowcharts for refrigerant circuit issues.

Troubleshooting - Cooling;Heating Performance Issues

Guides troubleshooting for cooling/heating performance issues.

Seven Segment Display Fault Codes

SLM3; Netware 3 Models

Lists fault indications for SLM3/Netware 3 models via seven segment display.

Ducted Blower Series Models

Lists fault indications for Ducted Blower models via seven segment display.

Multi Compressors Error Codes

Lists error codes for Multi Compressors via seven segment display.

Inverter Series Diagnosis

Wall Mounted F Series Inverter-X Diagnosis

Details LED indications and fault codes for F Series Inverter-X.

Wall Mounted G Series Inverter-X Diagnosis

Details LED indications and fault codes for G Series Inverter-X.

Ceiling Cassette A;C Series Inverter-X Diagnosis

Details LED indications and fault codes for Ceiling Cassette Inverter-X.

Ceiling Convertible E Series Inverter-X Diagnosis

Details LED indications and fault codes for Ceiling Convertible E Series Inverter-X.

Inverter Series Seven Segment Displays

Lists fault indications for Inverter series via seven segment display.

Inverter Outdoor Unit Diagnosis

Inverter-X Outdoor Unit LED Indicators

Explains LED indications for Inverter-X outdoor units.

Chilled Water Fan Coil Unit Diagnosis

Self Diagnosis - W1 V3 Models

Lists fault indications for W1V3 units via LED and seven segments.

Self Diagnosis - W2 Models

Lists fault indications for W2 units via LED and seven segments.

Water Source Split Unit Diagnosis

Ceiling Cassette A;B;C Series Diagnosis

Details LED indications and fault codes for Ceiling Cassette Water Source Split Units.

Seven Segment Display - SLM3; Netware 3 Models

Lists fault indications for SLM3/Netware 3 Water Source Split Units.

Inverter-Y Model Indoor Series Diagnosis

LED Indicators - Heat Pump Unit

Explains LED indicators and fault conditions for Inverter-Y Heat Pump units.

Error Code Diagnosis - Wireless Handset G18

Details error code diagnosis using the G18 wireless handset.

Error Code Reference

General Error Codes

Provides a comprehensive list of error codes and their descriptions.

Single Split Inverter - Y Model Outdoor Unit Diagnosis

Outdoor Unit Diagnosis - 7-Segment Display

Explains outdoor unit 7-segment display diagnosis and parameters.

Inverter-Y Model Diagnosis

Wall Mounted K-Series Inverter-Y Model

Details indoor LED indications and APJ2 handset error diagnosis.

Multi Digital Scroll Unit Diagnosis

Indoor Unit LED Indicator Error Diagnosis

Explains indoor unit LED error codes for Multi Digital Scroll units.

Wired Controller MC301 Error Diagnosis

Provides error diagnosis using the MC301 wired controller.

Outdoor Unit Error Codes

Lists outdoor unit error codes for MDS A and B series.

Mini Chiller Troubleshooting

Troubleshooting Guide and Remedial Actions

Provides troubleshooting steps and actions for Mini Chillers.

Rooftop Unit Troubleshooting

Troubleshooting Guide and Checks

Guides troubleshooting for Rooftop units, including pre-repair checks.

Appendix

Resistance - Temperature Characteristics

Provides resistance values for temperature sensors at various temperatures.

Related product manuals

Acson A5LC - User Manual

Table of Contents

Questions and Answers

Acson A5LC Specifications

Summary

Model Name

Product Name Description

Nomenclature - Indoor Unit

Nomenclature - Outdoor Unit

Conversion Table

Conversion Table

Product Mainboard vs. Handset Matrix

Mainboard and Handset Compatibility

Controller Development History

Controller Evolution Timeline

Handset Operating Guide

G6 Handset Operation

G8 Handset Operation

G12 Handset Operation

G18 Handset Operation

GS02 Handset Operation

APJ2 Handset Operation

SLM3 Handset Operation

Sequential Controller Operation

Netware 3 Handset Operation

Controller Configuration

Auto Random Restart Configuration

Hot Keep Selection

Auxiliary Heater Conversion

Multi Split Conversion

Sequential Controller Configuration

Sequential Board and LCD Panel Conversion

SQMB01 Board and SQ-LCD Panel Conversion

Chilled Water Fan Coil Unit Configuration

W1 V3 Jumper Settings

W2.0 Jumper Settings

Unit Conversion Guide

U1.5 to L208 A Conversion

WMF U1.4 to L2 EF Conversion

Service Diagnosis and Troubleshooting

Self Diagnosis - Wall Mounted F Series

Self Diagnosis - Wall Mounted G Series

Self Diagnosis - Wall Mounted J Series

Self Diagnosis - Ceiling Cassette Series

Self Diagnosis - Ceiling Exposed Series

General Checks for Malfunctions

Troubleshooting by Pressure Readings

Troubleshooting - Electric Circuit Diagnosis

Troubleshooting - Refrigerant Circuit Diagnosis

Troubleshooting - Cooling;Heating Performance Issues

Seven Segment Display Fault Codes

SLM3; Netware 3 Models

Ducted Blower Series Models

Multi Compressors Error Codes

Inverter Series Diagnosis

Wall Mounted F Series Inverter-X Diagnosis

Wall Mounted G Series Inverter-X Diagnosis

Ceiling Cassette A;C Series Inverter-X Diagnosis

Ceiling Convertible E Series Inverter-X Diagnosis

Inverter Series Seven Segment Displays

Inverter Outdoor Unit Diagnosis

Inverter-X Outdoor Unit LED Indicators

Chilled Water Fan Coil Unit Diagnosis

Self Diagnosis - W1 V3 Models

Self Diagnosis - W2 Models

Water Source Split Unit Diagnosis

Ceiling Cassette A;B;C Series Diagnosis

Seven Segment Display - SLM3; Netware 3 Models

Inverter-Y Model Indoor Series Diagnosis

LED Indicators - Heat Pump Unit

Error Code Diagnosis - Wireless Handset G18

Error Code Reference

General Error Codes

Single Split Inverter - Y Model Outdoor Unit Diagnosis

Outdoor Unit Diagnosis - 7-Segment Display

Inverter-Y Model Diagnosis

Wall Mounted K-Series Inverter-Y Model

Multi Digital Scroll Unit Diagnosis

Indoor Unit LED Indicator Error Diagnosis

Wired Controller MC301 Error Diagnosis