Gree GWH12QB-K3DNA6O 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 GWH12QB-K3DNA6O Specifications

General

Brand	Gree
Model	GWH12QB-K3DNA6O
Category	Air Conditioner
Language	English

Summary

Summary of Air Conditioner Features

Air Conditioner Specifications

Specification Sheet

Detailed technical specifications and parameters for the air conditioner units.

Cooling and Heating Data Sheet in Rated Frequency

Electrical Part Details

Wiring Diagram

Schematic diagrams illustrating the electrical connections within the unit.

PCB Printed Diagram

Function and Control Features

Remote Controller Introduction

Explanation of remote control buttons, icons, and display functions.

Smart Control via Smartphone/Tablet (Part 1)

Instructions for controlling the unit via smartphone app.

Smart Control via Smartphone/Tablet (Part 2)

Further details and advanced functions for smartphone control.

Modes and Functions Overview

Special Functions Explained

Defrosting Control

Control Logic

Installation and Maintenance Precautions

Safety Precautions

Essential safety guidelines for installation and maintenance procedures.

Installation Guide

Installation Dimension Diagram

Installation Procedures Flowchart

Electric Connection Requirements

Indoor Unit Installation Steps

Outdoor Unit Installation Steps

Vacuum Pumping and Leak Detection

Post-Installation Checks and Test Operation

Maintenance Procedures

Error Code List

Table of error codes, their display methods, causes, and countermeasures.

Troubleshooting Indoor Unit Malfunctions

Temperature Sensor Malfunction (F1, F2)

IDU Fan Motor Blocked Protection (H6)

Outdoor Unit Troubleshooting Guide

1. Capacity Charging Malfunction

Diagnosis and resolution for outdoor unit capacity charging faults.

2. IPM, Desynchronizing, and Overcurrent Protection

Troubleshooting for IPM, desynchronizing, and overcurrent issues in the compressor.

3. High Temperature and Overload Protection (E8)

Steps to address high temperature and overload protection alarms.

4. Start-up Failure (LC)

5. Overload and High Discharge Temperature Malfunction

Addressing overload and high discharge temperature issues in the unit.

6. PFC (Power Factor Correction) Malfunction

7. Communication Malfunction

8. Overload Protection Compressor (H3)

Steps to resolve compressor overload protection errors.

9. Overcurrent Protection Malfunction (E5)

Diagnosing and fixing overcurrent protection faults.

Troubleshooting Normal Malfunctions

Air Conditioner Fails to Start

Poor Cooling or Heating Performance

Air Conditioner Leaks

Exploded View and Parts List

Indoor Unit Parts Breakdown

Outdoor Unit Parts Breakdown

Removal Procedures