Gree GWH18QD-K3DNA6E User Manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
Models: GWH12QB-K3DNA5D(WIFI)
GWH12QB-K3DNC4D(WIFI)
GWH12QB-K3DNE2D(WIFI)
GWH12QB-K3DNA6D(WIFI)
GWH18QD-K3DNA5E(WIFI)
GWH18QD-K3DNA6E(WIFI)
GWH18QD-K3DNC4E(WIFI)
GWH18QD-K3DNE2E(WIFI)
(Refrigerant:R410A)

Gree GWH18QD-K3DNA6E Specifications

General

Brand	Gree
Model	GWH18QD-K3DNA6E
Category	Air Conditioner
Language	English

Summary

Part 1 Technical Information

1 Summary

2 Specifications

Detailed technical specifications for the air conditioner models.

2.1 Specification Sheet

Table detailing model-specific technical data and performance metrics.

3 Outline Dimension Diagram

Diagrams showing physical dimensions of indoor and outdoor units.

3.1 Indoor Unit

3.2 Outdoor Unit

4 Refrigerant System Diagram

Diagram illustrating the refrigerant flow and components in the system.

5 Electrical Part

Details on the electrical components and diagrams of the air conditioner.

5.1 Wiring Diagram

5.2 PCB Printed Diagram

6 Function and Control

Explanation of the air conditioner's operating modes, functions, and controls.

6.1 Remote Controller Introduction

6.2 Operation of Smart Control (Smart Phone, Tablet PC)

Instructions for operating the air conditioner via smart device app.

6.4 Brief Description of Modes and Functions

9 Maintenance

9.1 Error Code List

List of error codes, their display methods, possible causes, and countermeasures.

9.2 Troubleshooting for Main Malfunction

Diagnostic procedures for major malfunctions in indoor and outdoor units.

1. Malfunction of Temperature Sensor F1, F2

2. Malfunction of Blocked Protection of IDU Fan Motor H6

3. Malfunction of Protection of Jumper Cap C5

4. Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8

5. Overload and high discharge temperature malfunction

Troubleshooting for compressor overload and high discharge temperature issues.

6. PFC (correction for power factor) malfunction (outdoor unit malfunction)

Diagnostic steps for power factor correction circuit malfunctions.

7. Communication malfunction

Troubleshooting steps for communication failures between units.

8. Overload Protection Compressor H3

Diagnostic flow for compressor overload protection issues.

9. Malfunction of Overcurrent Protection E5

Troubleshooting steps for overcurrent protection errors.

9.3 Troubleshooting for Normal Malfunction

11 Removal Procedure

11.1 Removal Procedure of Indoor Unit

11.2 Removal Procedure of Outdoor Unit

Part 2 Installation and Maintenance

7 Notes for Installation and Maintenance

8 Installation

Detailed steps and guidelines for installing the air conditioner unit.

8.1 Installation Dimension Diagram

8.3 Selection of Installation Location

8.4 Electric Connection Requirement

8.5 Installation of Indoor Unit

8.6 Installation of Outdoor Unit

8.7 Vacuum Pumping and Leak Detection

8.8 Check after Installation and Test Operation