Air-Con ABSEM4H4S12 - User Manual

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1

Service Manual

Questions and Answers

K
Kim ChristianAug 18, 2025
What to do if there is a communication failure between the indoor unit and outdoor unit in my Air-Con Air Conditioner?
- G
  gdavisAug 18, 2025
  If the Air-Con Air Conditioner displays a communication failure between the indoor and outdoor units, check the following: * Ensure the communication cable is securely connected. * Verify the communication cable is not faulty. * Check the connection between the filter board and the outdoor control board, ensuring it is correct and secure. * Check the connection between the filter board and the terminal, ensuring it is correct and secure. * The indoor control board might be faulty. * The PFC board might be faulty. * The power board might be faulty. * The outdoor control board might be faulty.
E
edward24Aug 20, 2025
What causes current overload protection in Air-Con Air Conditioner?
- A
  andrew57Aug 20, 2025
  If your Air-Con Air Conditioner is showing current overload protection, it might be due to: * Abnormal fan motor operation. * Dirty condenser and evaporator coils. * Abnormal air inlet or outlet conditions.
C
Carolyn RuizAug 22, 2025
Why does my Air-Con Air Conditioner show compressor exhaust temperature too high protection?
- C
  Christopher WalkerAug 23, 2025
  If your Air-Con Air Conditioner is showing compressor exhaust temperature too high protection, it could be due to: * A faulty compressor exhaust temperature sensor. * Insufficient refrigerant in the unit.
K
kristinlopezAug 26, 2025
What causes compressor shell temperature too high protection in Air-Con Air Conditioner?
- N
  Nicole Mathis MDAug 26, 2025
  If your Air-Con Air Conditioner is showing compressor shell temperature too high protection, it might be due to: * A loose connection of the compressor exhaust temperature sensor. * Insufficient refrigerant in the unit.
J
jessica05Aug 27, 2025
What to do if my Air-Con Air Conditioner shows anti-freeze or overload protection?
- J
  Joseph HughesAug 28, 2025
  If the Air-Con Air Conditioner is experiencing anti-freeze protection during cooling or overload protection during heating, consider the following: * Check if the indoor coil temperature sensor is loosely connected. * The indoor coil temperature sensor might be faulty. * The indoor control board might be faulty. * The refrigerant system might be abnormal.
M
Mrs. Shelley Horn DDSAug 30, 2025
What to do if the compressor drive is in trouble in my Air-Con Air Conditioner?
- D
  Douglas SmithAug 30, 2025
  If your Air-Con Air Conditioner's compressor drive is in trouble, possible causes include: * A faulty outdoor drive board. * A faulty compressor. * A faulty outdoor control board.
A
amber25Sep 2, 2025
Why is the outdoor fan motor locked on my Air-Con Air Conditioner?
- M
  Melissa ReynoldsSep 2, 2025
  If your Air-Con Air Conditioner's outdoor fan motor has locked rotor protection, check the following: * Ensure the outdoor fan motor connection is secure. * Check for any obstructions blocking the outdoor fan. * The fan motor might be faulty. * The outdoor control board might be faulty.
K
Keith KingSep 4, 2025
What causes DC compressor start failure in Air-Con Air Conditioner?
- W
  william41Sep 4, 2025
  If your Air-Con Air Conditioner's DC compressor fails to start, it could be due to: * A faulty outdoor drive board. * A faulty compressor.
R
Rebecca TorresSep 6, 2025
What to do if the outdoor EEPROM is in trouble in my Air-Con Air Conditioner?
- S
  Steven GreenSep 7, 2025
  If your Air-Con Air Conditioner's outdoor EEPROM is in trouble, check: * If the EEPROM chip is loose. * If the EEPROM chip is inserted in the opposite direction. * If the EEPROM chip is faulty.
J
jared69Sep 9, 2025
What to do if the outdoor coil temperature sensor is in trouble in my Air-Con Air Conditioner?
- A
  Andrew RhodesSep 9, 2025
  If the Air-Con Air Conditioner displays that the outdoor coil temperature sensor is in trouble, check the following: * Ensure the outdoor coil sensor is securely connected. * The outdoor coil temperature sensor might be faulty. * The outdoor control board might be faulty.

Summary

1. Safety Considerations

Safety Symbols and Warnings

Explains hazard symbols and safety notices.

Special Precautions

Refrigerant Tubing and Servicing Safety

2. Product Specifications

4. Installation Instruction

Installation Place and Condition: Indoor Unit

Guidelines for selecting indoor unit installation location.

Installation Safety Warning

Critical safety warning for installation placement.

Installation Place and Condition: Outdoor Unit

4-2. Electric Wiring Diagram

Model Wiring Diagram References

Indoor Unit Wiring Diagram (1852066)

Indoor Unit Wiring Diagrams (1854605, 1854698)

Outdoor Unit Wiring Diagram (1854707)

4-3. Refrigerant Flow System

Refrigerant Flow Diagrams (Cooling & Cooling;Heating)

4-4. Air Purging and Leakage Test

4-5. Test Running

Post-Installation Checks

Checklist of items to verify after installation.

Operation Test Procedure

5-2. Remote Controller Operation & Function

Remote Controller Buttons and Symbols

6. Electrical Characteristics

6-1. Print Circuit Board (Indoor & Outdoor)

Lists indoor unit models corresponding to PCB diagrams.

Indoor Unit PCB Layouts

Outdoor Unit PCB Layout

Outdoor Unit PCB Terminal Identification

Outdoor Unit PCB Terminal Identification (Continued)

6-3. Temperature Sensor

Indoor;Outdoor Sensor Parameters

Indoor;Outdoor Sensor Parameters (Continued)

Outdoor Compressor Sensor Parameters

Outdoor Compressor Sensor Parameters (Continued)

6-4. Compressor

Compressor Circuit Diagram and Testing

7. Trouble Shooting

7-1. Error Code Table

Table showing outdoor unit error codes and causes.

Outdoor Unit Error Indicators (Continued)

Indoor Unit Error Indicators

Indoor Unit Error Indicators (Continued)

7-2. Test the jumper terminals

7-3. Trouble Diagnosis of Protection

Diagnosis of voltage protection issues.

Current Protection Diagnosis

Compressor Discharge and Outdoor Coil Protection

7-4. Trouble Diagnosis of Compressor

Air-Con ABSEM4H4S12 Specifications

General

Brand	Air-Con
Model	ABSEM4H4S12
Category	Air Conditioner
Language	English

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