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Hisense AMW4-27U4RAA - User Manual

Hisense AMW4-27U4RAA
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TECHNICAL & SERVICE MANUAL V5.0
—MULTI-SPLIT TYPE AIR CONDITIONERS
R410A
Refrigerant
R410A
Refrigerant
R410A
Refrigerant
R32
Refrigerant
Models:
<Outdoor Unit>
AMW2-12U4RRA
AMW2-14U4RRA
AMW2-18U4RXA
AMW3-21U4RFA
AMW3-24U4RFA
AMW3-24U4RAA
AMW4-27U4RAA
AMW4-36U4RAA
AMW5-42U4RTA

Questions and Answers

  • G
    greerfrancesSep 23, 2025
    What to do if my Hisense AMW4-27U4RAA shows IPM and control board communication fault?
    • A
      Amanda TerrySep 23, 2025
      To address an IPM and control board communication fault in your Hisense Air Conditioner, you can try the following steps: * Reconnect the cable between the control board and the driver board. * Replace the communication cable between the control board and the driver board. * Replace the driver board. * Replace the control board.
  • P
    Patrick LambertAug 25, 2025
    What to do if my Hisense AMW4-27U4RAA has poor cooling/heating?
    • K
      Keith ZimmermanAug 25, 2025
      If your Hisense Air Conditioner is not cooling or heating effectively, start by cleaning the heat exchanger of the outdoor unit, such as the condenser. Ensure there are no heating devices indoors that might be affecting the temperature. Maintain good air tightness indoors by minimizing how often people enter and exit. Check for and remove any obstructions blocking the outdoor heat exchanger. Finally, double-check and reset the temperature to the desired setting.
  • N
    nfarmerAug 25, 2025
    Why does the compressor of my Hisense AMW4-27U4RAA Air Conditioner start and stop frequently?
    • E
      Edward CannonAug 26, 2025
      If your Hisense Air Conditioner's compressor starts and stops frequently, it's likely that the air inlet or outlet is blocked. Remove any obstacles to ensure proper airflow.
  • B
    bjosephAug 26, 2025
    How to fix water leakage in Hisense Air Conditioner?
    • J
      joseortizAug 27, 2025
      If your Hisense Air Conditioner is leaking water, the drainage pipe may be blocked or broken, in this case, change drainage pipe. Alternatively, the wrap of the refrigerant pipe joint might not be completely sealed; re-wrap it tightly.
  • S
    Shelby BartlettAug 27, 2025
    What to do if my Hisense AMW4-27U4RAA Air Conditioner has a communication failure?
    • D
      David GuerreroAug 27, 2025
      If your Hisense Air Conditioner is showing a communication failure, you should first check the wiring. If the issue persists, try changing the driver board or the control board.
  • M
    Monica WareSep 13, 2025
    How to fix communication between main control board &display board Fault in Hisense Air Conditioner?
    • A
      Andrea BushSep 13, 2025
      To address a communication fault between the main control board and display board on your Hisense Air Conditioner, you can try: * Reconnecting the wiring between the display board and the indoor control board. * Replacing the wiring between the display board and the indoor control board. * Replacing the display board. * Replacing the indoor control board.
  • I
    ibarrajoseSep 12, 2025
    How to fix communication between main control board &Wiring remote controller Fault in Hisense AMW4-27U4RAA Air Conditioner?
    • M
      Mariah PerrySep 12, 2025
      To troubleshoot a communication fault between the main control board and wiring remote controller of your Hisense Air Conditioner, try the following: * Reconnect the wiring between the wiring controller and the indoor control board. * Replace the wiring between the wiring controller and the indoor control board. * Replace the wiring controller. * Replace the indoor control board.
  • S
    Steven HuberSep 12, 2025
    How to fix Evaporator Middle Temperature Sensor Fault in Hisense AMW4-27U4RAA Air Conditioner?
    • A
      Angela KirbySep 12, 2025
      To resolve an Evaporator Middle Temperature Sensor Fault in your Hisense Air Conditioner, you can try: * Reconnecting the cable of the coil temperature sensor of the evaporator. * Replacing the coil temperature sensor of the evaporator. * Replacing the indoor control board.
  • T
    Thomas HoltSep 4, 2025
    How to fix the indoor fan motor fault in Hisense AMW4-27U4RAA Air Conditioner?
    • W
      williamsrachelSep 4, 2025
      If you are experiencing an indoor fan motor fault with your Hisense Air Conditioner, try the following: * Reconnect the fan motor cable. * Replace the fan motor cable. * Replace the fan motor. * Replace the indoor control board. * Check the indoor fan to ensure it can run normally.
  • M
    Mark BurgessSep 2, 2025
    What to do if my Hisense AMW4-27U4RAA Air Conditioner turns off for low pressure protection?
    • M
      Michael LambertSep 2, 2025
      To resolve a low-pressure switch protection issue or unit shutdown due to low-pressure protection in your Hisense Air Conditioner, consider the following: * Reconnect the wiring of the low-pressure switch. * Replace the low-pressure switch. * Check for refrigerant leaks at the welding points and add refrigerant if needed. * Replace the expansion valve. * Replace the outdoor control board.

Summary

Safety Summary

5. CAPACITIES AND SELECTION DATA

5.1 Capacity Characteristic Charts

Displays cooling and heating capacities based on indoor/outdoor temperatures.

8. WIRING DIAGRAM

8.1 Electrical Wiring Diagram

Shows electrical wiring schematics for different models and fault codes.

8.2 Control Board Picture

Identifies components on main control, drive, and sensor boards.

9. FIELD SETTING

10. PIPING WORK AND REFRIGERANT CHARGE

10.1 Max Pipe Length Allowed

Specifies the maximum allowed piping lengths and additional refrigerant charge.

10.3 Air Tight Test & 10.4 Additional Refrigerant Charge

Covers air-tight test procedures and additional refrigerant calculation.

11. INSTALLATION TOOLS AND INSTALLATION FLOW CHART

14. TROUBLESHOOTING

14.1 Trouble Guide

Provides a guide to troubleshoot common malfunctions and their possible reasons.

14.2 Fault Codes

Details fault codes, descriptions, possible reasons, and solutions for various errors.

15. CHECKING COMPONENTS

16. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR

Hisense AMW4-27U4RAA Specifications

General IconGeneral
BrandHisense
ModelAMW4-27U4RAA
CategoryAir Conditioner
LanguageEnglish

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