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Gree GUHN24NK3HO - User Manual

Gree GUHN24NK3HO
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Owner's Manual
Air Conditioners
Indoor Unit Outdoor Unit
GKH18K3HI GUHN18NK3HO
GKH24K3HI GUHN24NK3HO
GKH30K3HI GUHN30NK3HO
GKH36K3HI GUHN36NM3HO
GKH42K3HI GUHN42NM3HO
GKH48K3HI GUHN48NM3HO
GKH60K3HI GUHN60NM3HO
Thank you for choosing Air Conditioners, please read this owner’s manual carefully before operation
and retain it for future reference.If you have lost the Owner’s Manual, please contact the local agent or
visit www.gree.com or send email to global@gree.com.cn or electronic version.
GREE reserves the right to interpret this manual which will be subject to any change due to product
improvement without further notice.
GREE Electric Appliances, Inc. of Zhuhai reserves the final right to interpret this manual.
Cassette Type
Air Conditioner Unit

Table of Contents

Other manuals for Gree GUHN24NK3HO

Preview: Service Manual
Service Manual141 pages

Questions and Answers

  • Y
    Yolanda GreenAug 2, 2025
    Why is my Gree Air Conditioner not cooling properly?
    • C
      Crystal VaughanAug 3, 2025
      Several factors can cause a Gree Air Conditioner to have a poor cooling effect. The air filter might be dirty or blocked, so cleaning or replacing it is recommended. There might be too many people or heat sources in the room; try to reduce these. Ensure all doors and windows are closed. Obstacles at the air intake or outlet should be removed. The set temperature might be too high, so lower it. A refrigerant leakage could also be the cause, requiring a check and refill. Lastly, the room temperature sensor might be faulty, and testing or replacing it may be necessary.
  • S
    scott90Aug 8, 2025
    Why does my Gree GUHN24NK3HO Air Conditioner operate for a while and then stop?
    • D
      Dawn HendersonAug 8, 2025
      If your Gree Air Conditioner operates for a while and then stops, check for any obstacles in front of the condenser and remove them. The control loop might be abnormal, requiring a check and repair. Also, if you're using cooling operation when the outdoor temperature is above 48°C, change the operation mode.
  • N
    Nicholas MartinAug 15, 2025
    How to improve the heating effect of my Gree GUHN24NK3HO Air Conditioner?
    • K
      Katie ChapmanAug 15, 2025
      To improve the heating effect of your Gree Air Conditioner, start by cleaning or replacing the air filter if it's dirty or blocked. Ensure that all doors and windows are firmly closed. If the set room temperature is too low, raise it. Check for refrigerant leakage and refill if necessary. If the outdoor temperature is below -5°C, consider supplemental heating or check if the operation is appropriate. Finally, check and repair the control loop if it is abnormal.
  • M
    Melissa MayAug 20, 2025
    What to do if my Gree GUHN24NK3HO Air Conditioner unit cannot be started?
    • J
      Jacob RoseAug 20, 2025
      If your Gree Air Conditioner won't start, first check the power supply connection. If the leakage switch is tripping, inspect for electrical leakage and correct it. Also, make sure the operating keys are not locked and unlock them if they are. If none of these resolve the issue, test and repair the control loop.
  • M
    Mrs. Valerie BellAug 27, 2025
    What to do if my Gree GUHN24NK3HO Air Conditioner displays error code E1?
    • B
      Bradley HernandezAug 27, 2025
      If your Gree Air Conditioner shows the E1 error code, switch off the unit immediately and seek assistance from a qualified technician for maintenance.

Summary

Safety Precautions

Installation Preparations

Installation Location Selection

Electrical Requirements

Unit Installation Guide

Indoor Unit Installation

Provides step-by-step instructions for installing the indoor unit.

Main Body Unit Installation

Details the process for installing the main body of the indoor unit.

Suspension Bolt Installation

Guides on how to install suspension bolts for mounting the indoor unit.

Outdoor Unit Installation

Connection Pipe Installation

Connection Pipe Flare Processing

Indoor Unit Pipe Connection

Outdoor Unit Pipe Connection

Gas Leakage Check

Instructs on how to check for gas leaks in the connected refrigerant pipes.

Vacuum and Gas Leakage Inspection

Vacuuming the System

Provides detailed steps for creating a vacuum in the refrigerant system.

Additional Refrigerant Charge

Electrical Wiring Procedures

Wiring Precautions

Lists essential safety warnings and precautions before performing electrical wiring.

Detailed Electrical Wiring

Details the correct procedures for connecting solid core and strand wiring.

Indoor;Outdoor Unit Wiring

Illustrates electrical connections between indoor and outdoor units for different unit types.

Indoor Unit Side Wiring

Outdoor Unit Side Wiring

Unit Grounding

Explains the importance and method of grounding both indoor and outdoor units.

Test Running and Operation

Trial Operation and Error Codes

Troubleshooting and Maintenance

Troubleshooting Common Issues

Provides guidance on identifying and resolving common unit failures and abnormal operations.

Routine Maintenance Procedures

Outlines regular maintenance tasks, focusing on cleaning air filters.

Gree GUHN24NK3HO Specifications

General IconGeneral
RefrigerantR410A
Noise Level (Indoor)46 dB(A)
TypeSplit System Air Conditioner
Cooling Capacity24000 BTU/h
Heating Capacity24000 BTU/h
Power Supply220-240V/50Hz/1Ph
Outdoor Unit Weight45 kg

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