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Hisense 2AMW-42U4RRA - User Manual

Hisense 2AMW-42U4RRA
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TECHNICAL&SERVICE MANUAL V2.0
—MULTI-SPLIT TYPE AIR CONDITIONERS
R410A
Refrigerant
R410A
Refrigerant
R410A
Refrigerant
R32
Refrigerant
Models:
<Outdoor Unit>
AMW2-14U4RRA
AMW2-18U4RXA
AMW3-24U4RAA
AMW4-27U4RAA
AMW4-36U4RAA
2AMW-42U4RRA
2AMW-50URXA
3AMW-70U4RAA
4AMW-81U4RAA
4AMW-105U4RAA

Questions and Answers

  • T
    Terry FritzSep 23, 2025
    What to do if my Hisense 2AMW-42U4RRA shows IPM and control board communication fault?
    • S
      Stacy AdamsSep 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.
  • R
    Ryan SimmonsAug 23, 2025
    What to do for drainage protection in Hisense 2AMW-42U4RRA Air Conditioner?
    • W
      wolfdavidAug 23, 2025
      To troubleshoot a drainage protection issue with your Hisense Air Conditioner, follow these steps: 1. Check the drain hose for blockages or excessive height. 2. Inspect the water pump and replace it if it's faulty. 3. Reconnect the cable of the water level switch, referring to the wiring diagram. 4. Replace the water level switch. 5. Replace the control board.
  • R
    Richard PierceAug 25, 2025
    How to fix communication fault between indoor and outdoor unit of Hisense Air Conditioner?
    • J
      James JohnsonAug 26, 2025
      To resolve communication issues between the indoor and outdoor units of your Hisense Air Conditioner, try the following: * Reconnect the connection cable, referring to the wiring diagram. * Reconnect the communication cable. * Replace the communication cable. * Replace the indoor or outdoor control board. * Check the communication circuit, adjusting the DIP switch and short-circuit fuse. * Ensure you are using a suitable communication cable, referring to the user manual.
  • M
    Michael GonzalesAug 26, 2025
    What to do if my Hisense 2AMW-42U4RRA shows compressor overheat protector device?
    • J
      Jason RamosAug 26, 2025
      If your Hisense Air Conditioner's compressor is overheating, you can try the following steps: 1. Reconnect the wiring of the overload protector. 2. Replace the overload protector. 3. Check for leakage at the welding points and recharge the refrigerant if necessary. 4. Add refrigerant. 5. Replace the expansion valve. 6. Replace the outdoor control board.
  • J
    Jeffrey HendersonAug 27, 2025
    What to do if my Hisense 2AMW-42U4RRA turns off for high pressure protection?
    • R
      Robert DelgadoAug 27, 2025
      To address a high-pressure switch issue or unit shutdown due to high-pressure protection in your Hisense Air Conditioner, try the following: * Reconnect the wiring to the high-pressure protector. * Replace the high-pressure protector. * Replace the outdoor control board.
  • S
    smithjohnSep 17, 2025
    How to fix Suction temperature sensor fault in Hisense Air Conditioner?
    • J
      jefferylinSep 17, 2025
      To resolve a suction temperature sensor fault in your Hisense Air Conditioner, you can try: * Reconnecting the wiring of the suction temperature sensor. * Replacing the suction temperature sensor. * Replacing the outdoor control board.
  • M
    Michael StokesSep 14, 2025
    What to do if The outdoor DC fan motor (down fan motor) fault in Hisense Air Conditioner?
    • C
      Crystal AyalaSep 14, 2025
      To address the outdoor DC fan motor fault (down fan motor) in your Hisense Air Conditioner, you can try: * Reconnecting the wiring of the down DC fan motor. * Replacing the down DC fan motor. * Replacing the driver board of the fan motor. * Checking the outdoor fan to ensure it can run normally.
  • M
    Michael FergusonSep 15, 2025
    How to fix Discharge temperature sensor fault in Hisense 2AMW-42U4RRA?
    • J
      jonesjohnSep 16, 2025
      To resolve a discharge temperature sensor fault in your Hisense Air Conditioner, you can try: * Reconnecting the wiring of the discharge temperature sensor. * Replacing the discharge temperature sensor. * Replacing the outdoor control board.
  • M
    Mark ChristensenSep 6, 2025
    What to do if my Hisense 2AMW-42U4RRA shows voltage absent phase?
    • M
      Michelle DavisSep 6, 2025
      To resolve a voltage absent phase issue in your Hisense Air Conditioner, consider the following: * Check the wiring connection, referring to the wiring diagram. * Replace the outdoor control board.
  • D
    Dustin ClarkSep 3, 2025
    How to fix outdoor coil temperature sensor fault in Hisense 2AMW-42U4RRA Air Conditioner?
    • R
      Robin NicholsSep 3, 2025
      To fix an outdoor coil temperature sensor fault on your Hisense Air Conditioner, you can try: * Reconnecting the outdoor coil temperature sensor. * Replacing the outdoor coil temperature sensor components. * Replacing the outdoor control board components.

Summary

1. General

1.1 Features

Details key features like Twin Rotary DC Inverter Compressor and 3-DC Inverter Technology.

1.2 Product Lineup

Lists available outdoor unit types and their corresponding model series.

1.3 Model Identification

Explains the coding structure of the product model numbers.

1.4 Working Range

Specifies the operating voltage and ambient temperature limits.

1.5 Product Pictures

Visual representations of the outdoor units with their capacities.

2. Specifications

3. Outlines and Dimensions

4. Electrical Data

5. Capacities and Selection Data

5.1 Capacity Characteristic Charts

Charts showing cooling and heating capacities at various temperatures.

5.2 Piping Length Correction Factor

Factors to adjust capacity based on piping length and height.

5.3 Correction Factors for Defrosting Operation

Adjustments to heating capacity considering defrosting cycles.

6. Sound Pressure Data

7. Refrigerant Cycle

8. Wiring Diagram

8.1 Electrical Wiring Diagrams

Wiring diagrams for different model series (14K/18K, 24K, 27K/36K).

8.2 Electric Control Board

Identification and layout of components on the control boards.

8.3 Running Parameter Query

Procedure for checking and displaying outdoor unit running parameters.

8.4 Common Wiring

Standard wiring configurations for indoor and outdoor unit connections.

8.5 Sensor Parameters

Resistance values for temperature sensors at various temperature points.

9. Piping Work and Refrigerant Charge

9.1 Max. Refrigerant Pipe Length and Height Difference

Specifications for maximum allowed pipe lengths and height differences.

9.2 Oil Trap

Guidelines for installing oil traps in the refrigerant piping system.

9.3 Additional Refrigerant Charge

Instructions for calculating and adding refrigerant based on pipe length.

10. Control Mode

11. Trouble Shooting

11.1 Method to Identify Fault Codes

Explains how to interpret fault codes displayed on the control board LEDs.

11.2 Fault Codes

Comprehensive tables of fault codes, descriptions, reasons, and solutions.

12. Checking Components

12.1 Check Refrigerant System

Step-by-step procedures for testing the refrigerant system.

12.2 Check Parts Unit

Identifies fan motor and compressor models and testing methods.

Hisense 2AMW-42U4RRA Specifications

General IconGeneral
BrandHisense
Model2AMW-42U4RRA
CategoryAir Conditioner
LanguageEnglish

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