EasyManua.ls Logo

Hisense AMW2-18U4RXA - User Manual

Hisense AMW2-18U4RXA
80 pages
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
Loading...
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

  • S
    Sara FosterSep 23, 2025
    What to do if my Hisense Air Conditioner shows IPM and control board communication fault?
    • Z
      Zachary PatelSep 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.
  • W
    William GrossAug 25, 2025
    What to do if my Hisense Air Conditioner has poor cooling/heating?
    • R
      Rickey LeeAug 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.
  • T
    Thomas PhillipsAug 25, 2025
    Why does the compressor of my Hisense Air Conditioner start and stop frequently?
    • B
      Brittany RobinsonAug 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
    Brandon BrooksAug 26, 2025
    How to fix water leakage in Hisense Air Conditioner?
    • S
      Sharon MedinaAug 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.
  • C
    Corey SimmonsAug 27, 2025
    What to do if my Hisense AMW2-18U4RXA Air Conditioner has a communication failure?
    • B
      barberpamelaAug 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.
  • R
    Richard CastroSep 13, 2025
    How to fix communication between main control board &display board Fault in Hisense Air Conditioner?
    • C
      ccummingsSep 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.
  • N
    Nicholas ThomasSep 12, 2025
    How to fix communication between main control board &Wiring remote controller Fault in Hisense Air Conditioner?
    • P
      Phillip JohnsonSep 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.
  • M
    Michael HallSep 12, 2025
    How to fix Evaporator Middle Temperature Sensor Fault in Hisense AMW2-18U4RXA Air Conditioner?
    • K
      Kevin HernandezSep 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.
  • B
    Brandon JonesSep 4, 2025
    How to fix the indoor fan motor fault in Hisense Air Conditioner?
    • P
      Priscilla FranklinSep 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.
  • J
    Jeffrey PeckSep 2, 2025
    What to do if my Hisense AMW2-18U4RXA Air Conditioner turns off for low pressure protection?
    • A
      Andrew BartonSep 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

1. GENERAL

1.1 Features

Details key features like Twin Rotary DC Inverter Compressor, 3-DC Inverter Technology, EEV, and Self Recovery.

1.2 Product lineup

Lists available outdoor unit types, capacities, and indoor unit combinations for different models.

1.3 Nomenclature

Explains the meaning of characters in the model name for outdoor units, aiding identification.

1.4 Unit installation

Specifies the maximum indoor units per outdoor unit and the allowable combination rate range.

1.5 Working range

Details the applicable working voltage, voltage imbalance, and operating temperature range for the unit.

1.6 Product appearance

Provides visual representations of outdoor units based on their type and capacity for identification.

2. SPECIFICATIONS

2. Specifications

Provides comprehensive technical specifications covering performance, electrical data, dimensions, and piping requirements.

3. OUTLINES AND DIMENSIONS

3. Outlines and dimensions

Presents detailed diagrams and dimensions for various outdoor unit models, crucial for installation planning.

4. ELECTRICAL DATA

4. Electrical data

Lists essential electrical parameters including power supply, voltage, current, and ELB requirements for different unit capacities.

5. CAPACITIES AND SELECTION DATA

5.1 Capacity characteristic charts

Shows cooling and heating capacity tables based on varying indoor and outdoor temperatures for system sizing.

5.2 Piping length correction factor

Provides correction factors for piping length and height difference to adjust system capacity accurately.

5.3 Correction factors according to defrosting operation

Details correction factors for heating capacity adjustment during defrosting operations.

6. SOUND PRESSURE DATA

6. Sound pressure data

Presents sound pressure level graphs for different outdoor unit models across various frequency bands.

7. REFRIGERANT CYCLE

7. Refrigerant cycle

Illustrates the refrigerant flow paths for cooling and heating modes for different unit types, aiding understanding.

8. WIRING DIAGRAM

8.1 Electrical wiring diagram

Shows detailed electrical wiring diagrams and fault code explanations for specific unit models.

8.2 Control board picture

Identifies key components and connection points on main and drive control boards for service.

8.3 Common wiring

Details common wiring configurations, recommended wire sizes, and electrical safety checks.

9. FIELD SETTING

9.1 DIP Setting

Explains the DIP switch settings for outdoor units, covering factory, refrigerant collection, and manual defrost modes.

9.2 Running Parameter Query

Describes how to check outdoor unit running parameters using the 7-segment display and control buttons.

10. PIPING WORK AND REFRIGERANT CHARGE

10.1 Max. pipe length allowed

Specifies maximum allowed piping lengths and additional refrigerant charge requirements based on length.

10.3 Air tight test

Details the procedure for performing an air-tight test using nitrogen gas to ensure system integrity.

10.4 Additional refrigerant charge

Explains how to calculate and add refrigerant based on piping length for different models.

11. INSTALLATION TOOLS AND INSTALLATION FLOW CHART

11.1 Necessary tools and instrument list for installation

Lists essential tools and instruments needed for refrigerant pipe work and air conditioner installation.

11.2 Installation flow chart

Outlines the sequence of steps for installing the air conditioning system from start to finish.

12. CONTROL MODE

12. Control mode

Explains various system control modes, operational protections (anti-freeze, overload), and mode conflicts.

13. SENSOR PARAMETER

13. Sensor parameter

Provides tables of resistance values for outdoor compressor discharge temperature sensors at various temperatures.

14. TROUBLESHOOTING

14.1 Trouble guide

Lists common malfunctions, their possible causes, and recommended solutions for normal operation issues.

14.2 Fault codes

Details outdoor fault codes, their descriptions, reasons for abnormality, and recommended troubleshooting steps.

15. CHECKING COMPONENTS

15.1 Check refrigerant system

Describes the test system flow for checking the refrigerant system in cooling and heating modes.

15.2 Check parts unit

Lists specific parts like fan motors and compressors with their models for examination and testing.

16. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR

16. Disassembly and assembly for compressor and motor

Provides step-by-step instructions and illustrations for disassembling and assembling outdoor unit components.

Hisense AMW2-18U4RXA Specifications

General IconGeneral
BrandHisense
ModelAMW2-18U4RXA
CategoryAir Conditioner
LanguageEnglish

Related product manuals