Air-Con ABSEM4H4S18 - User Manual

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1

Service Manual

Questions and Answers

E
Erin HoganAug 18, 2025
What to do if there is a communication failure between the indoor unit and outdoor unit in my Air-Con Air Conditioner?
- R
  riosgloriaAug 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.
M
Michael PaulAug 20, 2025
What causes current overload protection in Air-Con Air Conditioner?
- P
  poncevictorAug 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.
G
Gary AllenAug 23, 2025
Why does my Air-Con Air Conditioner show compressor exhaust temperature too high protection?
- O
  omathisAug 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.
S
Sean LiuAug 25, 2025
What causes compressor shell temperature too high protection in Air-Con Air Conditioner?
- M
  Matthew NelsonAug 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.
C
Cassandra StanleyAug 27, 2025
What to do if my Air-Con Air Conditioner shows anti-freeze or overload protection?
- C
  Catherine RodriguezAug 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.
T
Tanya PattonAug 30, 2025
What to do if the compressor drive is in trouble in my Air-Con Air Conditioner?
- D
  David DillonAug 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.
J
Jennifer SanchezSep 2, 2025
Why is the outdoor fan motor locked on my Air-Con Air Conditioner?
- H
  Holly LyonsSep 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.
C
Christopher TorresSep 4, 2025
What causes DC compressor start failure in Air-Con Air Conditioner?
- C
  Christina HutchinsonSep 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.
E
Edward AustinSep 6, 2025
What to do if the outdoor EEPROM is in trouble in my Air-Con Air Conditioner?
- A
  annemackSep 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.
K
Kelly TylerSep 9, 2025
What to do if the outdoor coil temperature sensor is in trouble in my Air-Con Air Conditioner?
- B
  Brian VasquezSep 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

Safety Considerations

Product Specifications

Installation Instruction

Installation Place and Condition

Electric Wiring Diagram

Refrigerant Flow System

Air Purging and Leakage Test

Test Running

Electrical Characteristics

Print Circuit Board (Indoor & Outdoor)

Fan Motor

Temperature Sensor

Compressor

Trouble Shooting

Error Code Table

Lists error codes for indoor and outdoor units and their root causes.

Test the jumper terminals

Explains how to test jumper terminals for diagnosing communication faults.

Trouble Diagnosis of Protection

Discusses protection diagnosis for voltage and current issues.

Trouble Diagnosis of Compressor

Guides on identifying compressor terminals and testing coil resistance.

Trouble Diagnosis of Electric Filter Board

Covers visual inspection and voltage testing of the electric filter board.

Trouble Diagnosis of Electric Communication

Outlines steps to diagnose electric communication issues between units.

Air-Con ABSEM4H4S18 Specifications

General

Brand	Air-Con
Model	ABSEM4H4S18
Category	Air Conditioner
Language	English

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