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Gree GFH18K3FI - User Manual

Gree GFH18K3FI
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Air Conditioners
Owner's Manual
Models:
Indoor Unit Outdoor Unit
GFH09K3FI GUHD09NK3FO
GFH12K3FI GUHD12NK3FO
GFH18K3FI GUHD18NK3FO
GFH24K3FI GUHD24NK3FO
GFH30K3FI GUHD30NK3FO
GFH36K3FI GUHD36NK3FO
GFH42K3FI GUHD42NK3FO
GFH48K3FI GUHD48NK3FO
GFH36K3FI GUHD36NM3FO
GFH42K3FI GUHD42NM3FO
GFH48K3FI GUHD48NM3FO
GFH60K3FI GUHD60NM3FO
DC Inverter U-match Series
Duct Type Unit
Thank you for choosing our product.
For proper operation, please read and keep this manual carefully.
If you have lost the Owner’s Manual, please contact the local
agent or visit www.gree.com or sent 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 nal right to interpret this manual.

Other manuals for Gree GFH18K3FI

Questions and Answers

  • S
    Samantha ColonSep 23, 2025
    What to do if my Gree Air Conditioner has a malfunction of drive module sensor?
    • T
      Todd WilliamsSep 23, 2025
      If there is a malfunction of the drive module sensor in your Gree Air Conditioner, please turn off the unit and ask a professional for maintenance.
  • T
    Timothy BeasleyAug 25, 2025
    How to fix a Gree Air Conditioner that will not start?
    • J
      Jeffrey VegaAug 25, 2025
      If your Gree Air Conditioner won't start, check the power supply connection first. Then, inspect for electrical leakage that might be tripping the leakage switch and reset it. Ensure the operating keys are unlocked, and check the control loop functionality.
  • D
    Dustin JacksonAug 25, 2025
    Why is my Gree GFH18K3FI not heating properly?
    • T
      Troy ThompsonAug 26, 2025
      If your Gree Air Conditioner isn't heating well, begin by cleaning or replacing the air filter. Ensure all doors and windows are firmly closed and increase the set room temperature. Inspect for refrigerant leakage and verify that the outdoor ambient temperature is not lower than -5°C. Also, examine the control loop for any issues.
  • A
    Audrey BrownAug 26, 2025
    What to do if my Gree Air Conditioner operates for a while and then stops?
    • D
      Diane JohnsonAug 27, 2025
      If your Gree Air Conditioner stops after running for a bit, first check for any obstacles blocking the condenser and remove them. Next, examine the control loop for any abnormalities. Also, if you're using cooling operation, ensure the outdoor temperature isn't above 48°C.
  • J
    Jane WardSep 23, 2025
    What to do if my Gree GFH18K3FI has a malfunction of drive current?
    • J
      Jonathan EricksonSep 23, 2025
      If there is a malfunction of drive current in your Gree Air Conditioner, please turn off the unit and ask a professional for maintenance.
  • A
    Alex AllenSep 13, 2025
    What to do if my Gree GFH18K3FI has a malfunction of the condenser temperature sensor?
    • B
      brownmeganSep 13, 2025
      If your Gree Air Conditioner is showing a malfunction of the condenser temperature sensor, please turn off the unit and ask a professional for maintenance.
  • M
    Morgan PierceSep 12, 2025
    What to do if my Gree GFH18K3FI Air Conditioner has a malfunction of the indoor ambient temperature sensor?
    • W
      wallerdanielSep 12, 2025
      If there is a malfunction of the indoor ambient temperature sensor in your Gree Air Conditioner, please turn off the unit and ask a professional for maintenance.
  • D
    dbishopSep 12, 2025
    What to do if my Gree GFH18K3FI has a malfunction of the evaporator temperature sensor?
    • J
      John HortonSep 12, 2025
      If your Gree Air Conditioner is showing a malfunction of the evaporator temperature sensor, please turn off the unit and ask a professional for maintenance.
  • S
    Sean ReyesSep 4, 2025
    What should I do if my Gree GFH18K3FI Air Conditioner has freeze protection?
    • J
      Joseph MartinezSep 4, 2025
      If your Gree Air Conditioner is under freeze protection, please turn off the unit and ask a professional for maintenance.
  • R
    Robert GilbertSep 1, 2025
    What should I do if my Gree Air Conditioner has compressor phase protection?
    • J
      Jacob ShepherdSep 2, 2025
      If your Gree Air Conditioner indicates compressor phase protection, please turn off the unit and ask a professional for maintenance.

Summary

Safety Precautions

Installation Location Guidance

Connection Pipe Specifications

Electrical Specifications and Requirements

Indoor Unit Installation Process

Indoor Unit Installation Steps

Step-by-step instructions for installing the indoor unit correctly.

Indoor Unit Mounting Hardware

Outdoor Unit Installation Guide

Refrigerant Pipe Connection

Leak Testing and Insulation

How to check for leaks and insulate pipe joints.

System Vacuum and Leak Check

Vacuum Pump Procedure

Detailed steps for evacuating the system using a vacuum pump.

Refrigerant Management

Drain Hose Installation Guide

Ductwork Installation Basics

Supply Air Duct Installation

Electrical Wiring Procedures

Electrical Wiring Safety Precautions

Essential safety warnings and precautions before performing electrical wiring.

Indoor and Outdoor Unit Wiring

Diagrams and instructions for wiring between indoor and outdoor units.

System Test and Operation

Troubleshooting and Maintenance

Common Troubleshooting Solutions

Lists common failures and their possible causes for diagnosis.

Regular Maintenance Procedures

Steps for performing regular maintenance on the air conditioning unit.

Air Filter Care and Replacement

Gree GFH18K3FI Specifications

General IconGeneral
Compressor TypeRotary
TypeSplit
Cooling Capacity (kW)5.3 kW
Coefficient of Performance (Heating)3.6
Power Supply220-240V, 50Hz
Operating Temperature (Cooling)18°C - 43°C
Operating Temperature (Heating)-7°C - 24°C
Cooling Capacity18000 BTU/h

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