Gree GUHN36NM3HO User Manual

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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

Other manuals for Gree GUHN36NM3HO

Service Manual141 pages

Questions and Answers:

J
joshuameadowsAug 9, 2025
Why is my Gree Air Conditioner not cooling properly?
- R
  Rachel RiveraAug 9, 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.
J
joseph65Aug 15, 2025
Why does my Gree GUHN36NM3HO operate for a while and then stop?
- J
  Jennifer RiveraAug 15, 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.
M
Matthew HamiltonAug 21, 2025
How to improve the heating effect of my Gree Air Conditioner?
- M
  Matthew RodriguezAug 21, 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.
R
Richard JordanAug 27, 2025
What to do if my Gree GUHN36NM3HO unit cannot be started?
- M
  Michelle LeeAug 27, 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.
K
Kristin BryanSep 2, 2025
What to do if my Gree GUHN36NM3HO displays error code E1?
- D
  Darren MooreSep 2, 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.

Gree GUHN36NM3HO Specifications

General

Cooling Capacity	36000 BTU/h
Heating Capacity	36000 BTU/h
HSPF	9.0
Voltage (V)	220-240
Refrigerant	R410A
Type	Split System
Power Supply	220-240V, 50Hz

Summary

Safety Precautions

General Safety Warnings and Cautions

Covers important warnings and cautions for safe operation and installation of the air conditioner.

Unit Installation Procedures

Indoor Unit Installation Steps

Covers unit dimensions, main body mounting, suspension bolts, and leveling.

Outdoor Unit Installation Guidelines

Details placement, dimensions, and condensate drainage for outdoor units.

Connection Pipe Installation

Details flare processing, bending, connecting pipes, and heat insulation.

Vacuum and Gas Leakage Inspection

Procedure for evacuating the system and checking for refrigerant leaks.

Drain Hose Installation

Panel Installation

Electrical Wiring

Test Running and Operation

Trial Operation and Error Codes

Troubleshooting and Maintenance

Troubleshooting Common Failures

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