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Air Conditioner
GWH12AAB-K3DNA4A
Service manual
Gree GWH12AAB-K3DNA4A Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Part Ⅰ : Technical Information
Summary
Specifications
Specification Sheet
Operation Characteristic Curve
Capacity Variation Ratio According to Temperature
Cooling and Heating Data Sheet in Rated Frequency
Noise Curve
Outline Dimension Diagram
Indoor Unit
Outdoor Unit
Refrigerant System Diagram
Electrical Part
Wiring Diagram
PCB Printed Diagram
Top View
Bottom View
Function and Control
Remote Controller Introduction of YAW1F
TEMP Button
Remote Controller Introduction of YAW1F5(Wifi)
Ewpe Smar T App Operation Manual
GREE+ App Operation Manual
Brief Description of Modes and Functions
Outdoor Units
Communication Fault
Module Protection
Part Ⅱ : Installation and Maintenance
Notes for Installation and Maintenance
Safety Precautions for Installing
Main Tools for Installation and Maintenance
Installation
Installation Dimension Diagram
Installation Procedures
Installation Parts-Checking
Selection of Installation Location
Requirements for Electric Connection
Installation of Indoor Unit
Installation of Outdoor Unit
Vacuum Pumping and Leak Detection
Check after Installation and Test Operation
Maintenance
Error Code List
Communication Malfunction
System Malfunction
Troubleshooting for Main Malfunction
Troubleshooting for Normal Malfunction
Exploded View and Parts List
Indoor Unit
Outdoor Unit
Removal Procedure
Removal Procedure of Indoor Unit
Removal Procedure of Outdoor Unit
Before Disassembly
Appendix
Appendix 1: Reference Sheet of Celsius and Fahrenheit
Appendix 2: Configuration of Connection Pipe
Appendix 3: Pipe Expanding Method
Appendix 4: List of Resistance for Temperature Sensor
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Service Manual
Models:
GWH12AAB-K3DNA1A
GWH12AAB-K3DNA2A
GWH12AAB-K3DNA3A
GWH12AAB-K3DNA4A
GWH12AAB-K3DNA5A
(Refrigerant R410A)
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
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Table of Contents
Troubleshooting
Troubleshooting for Main Malfunction
54
Troubleshooting for Normal Malfunction
68
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Summarization of Contents
Part I : Technical Information
Air Conditioner Model Overview
Lists the specific GWH12AAB-K3DNA series models covered by this service manual.
Detailed Technical Specifications
Provides comprehensive data on performance, electrical, and physical characteristics.
Unit Dimensional Drawings
Shows installation dimensions and clearances for indoor and outdoor units.
Refrigerant Circuit Overview
Illustrates the flow and components of the refrigerant system in cooling and heating.
Electrical Wiring and PCB Details
Contains wiring diagrams, PCB layouts, and component identification.
Remote Control and Unit Features
Explains remote controller functions, operation modes, and special features.
Part II : Installation and Maintenance
Installation and Maintenance Safety Warnings
Crucial safety precautions for installation, maintenance, and electrical work.
Unit Installation Guide
Covers location selection, dimension diagrams, and step-by-step installation procedures.
Troubleshooting and Error Code Analysis
Provides a list of error codes and detailed troubleshooting methods for malfunctions.
Unit Components Breakdown
Visual exploded views and detailed parts lists for indoor and outdoor units.
Component Removal Steps
Step-by-step instructions for safely disassembling indoor and outdoor unit components.
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