Air-Con ASREM4H4S12 - User Manual

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Service Manual

Questions and Answers

G
gmillerAug 17, 2025
What to do if there is a communication failure between the indoor unit and outdoor unit in my Air-Con Air Conditioner?
- M
  Mary EspinozaAug 17, 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.
A
Alexandria SmithAug 20, 2025
What causes current overload protection in Air-Con Air Conditioner?
- M
  Michael EllisAug 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.
T
teresa03Aug 23, 2025
Why does my Air-Con Air Conditioner show compressor exhaust temperature too high protection?
- M
  Matthew WallaceAug 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.
X
xdeanAug 26, 2025
What causes compressor shell temperature too high protection in Air-Con Air Conditioner?
- C
  Christina RodriguezAug 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.
D
Drew ThompsonAug 27, 2025
What to do if my Air-Con Air Conditioner shows anti-freeze or overload protection?
- W
  Whitney JeffersonAug 27, 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.
E
ewrightAug 30, 2025
What to do if the compressor drive is in trouble in my Air-Con Air Conditioner?
- D
  douglascastroAug 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.
M
Melissa CherrySep 2, 2025
Why is the outdoor fan motor locked on my Air-Con Air Conditioner?
- J
  josephchapmanSep 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.
M
Michael HahnSep 4, 2025
What causes DC compressor start failure in Air-Con Air Conditioner?
- H
  Heather RobbinsSep 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.
S
Scott EvansSep 6, 2025
What to do if the outdoor EEPROM is in trouble in my Air-Con Air Conditioner?
- T
  Thomas MoralesSep 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.
C
Christopher WuSep 9, 2025
What to do if the outdoor coil temperature sensor is in trouble in my Air-Con Air Conditioner?
- R
  Robert RamirezSep 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

Guides on selecting suitable indoor and outdoor installation locations.

Electric Wiring Diagram

Lists wiring diagram numbers for different models.

Test Running

Function Operation

Remote Controller Operation & Function

Explains the buttons and functions of the remote controller.

Special Function Instruction

Trouble Shooting

Error Code Table

Lists error codes, descriptions, and potential causes for outdoor units.

Test the Jumper Terminals

Describes how to test jumper terminals on the outdoor control panel.

Trouble Diagnosis of Protection

Covers protection mechanisms like over-voltage, under-voltage, and over-current.

Trouble Diagnosis of Compressor

Air-Con ASREM4H4S12 Specifications

General

Type	Split System
Refrigerant	R410A
Power Supply	220-240V, 50Hz
Operating Temperature (Cooling)	18°C to 43°C
Net Weight (Indoor/Outdoor)	9 kg
Cooling Capacity	12000 BTU/h

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