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Gree GMV-ND125T/A-T - User Manual

Gree GMV-ND125T/A-T
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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 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.
Multi Variable Air Conditioners
Cassette Type Indoor Unit
Models:
GMV-ND28T/A-T
GMV-ND36T/A-T
GMV-ND45T/A-T
GMV-ND50T/A-T
GMV-ND56T/A-T
GMV-ND63T/A-T
GMV-ND71T/A-T
GMV-ND80T/A-T
GMV-ND90T/A-T
GMV-ND100T/A-T
GMV-ND112T/A-T
GMV-ND125T/A-T
GMV-ND140T/A-T
GMV-ND160T/A-T
Owner's Manual
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.

Table of Contents

Other manuals for Gree GMV-ND125T/A-T

Preview: Service Manual
Service Manual227 pages

Questions and Answers

  • S
    Sherry SparksAug 20, 2025
    Why is my Gree Air Conditioner not cooling properly?
    • G
      Gregory VazquezAug 20, 2025
      Several factors can cause a Gree Air Conditioner to have a poor cooling effect. Check the following: * Ensure the filter is clean; if dirty, clean or replace it. * Reduce the heat load in the room by decreasing the number of people or heat-generating devices. * Make sure all doors and windows are closed. * Verify that the inlet and outlet of the indoor unit are not blocked. * Lower the setting temperature. * Check refrigerant levels and refill if necessary, as insufficient refrigerant can also cause poor cooling.
  • D
    dharrisAug 22, 2025
    How to fix a Gree GMV-ND125T/A-T that won't start?
    • J
      Jeff Ward DDSAug 22, 2025
      If your Gree Air Conditioner won’t start, consider these potential causes: * Check the power supply to ensure it is properly connected. * Inspect the circuit breaker; tripping may be caused by leakage of electricity. * Ensure the input voltage is adequate. * If the above steps don't resolve the issue, there may be a defect with the main PC-board; contact a service center for inspection.
  • R
    Rebecca HernandezAug 25, 2025
    Why is my Gree GMV-ND125T/A-T Air Conditioner not cooling well?
    • J
      James KelleyAug 25, 2025
      Several factors can cause a Gree Air Conditioner to have a poor cooling effect. The filter might be dirty, so try cleaning or replacing it. The room might have too much heat, so reduce the heat load. Make sure all doors and windows are closed. Check that the indoor unit's inlet and outlet aren't blocked. The temperature setting might be too high, so lower it. Finally, there might not be enough refrigerant due to a leak, so check for leaks and refill if needed.
  • S
    smithjacobAug 26, 2025
    How to fix mode shock in Gree GMV-ND125T/A-T?
    • J
      jacobmendozaAug 26, 2025
      If your Gree Air Conditioner is experiencing mode shock, try resetting the unit to eliminate the mode shock.
  • C
    ccraigAug 27, 2025
    Why is my Gree GMV-ND125T/A-T Air Conditioner's heating not working well?
    • G
      Gordon CampbellAug 27, 2025
      If your Gree Air Conditioner is not heating effectively, several factors could be responsible: * A dirty filter can restrict airflow; clean or replace it. * An open door or window can let heat escape; ensure all doors and windows are closed. * If the setting temperature is too low, increase it to your desired warmth level. * Low refrigerant levels due to leakage can also reduce heating performance; check refrigerant levels and refill if necessary.
  • S
    Scott MillerAug 29, 2025
    What to do if my Gree GMV-ND125T/A-T Air Conditioner won't start?
    • K
      Karen ThomasAug 30, 2025
      If your Gree Air Conditioner won't start, begin by checking the power supply connection. If that's not the issue, reset the circuit breaker, as it may have tripped due to a leakage of electricity. Also, ensure the input voltage is correct. If none of these steps work, the main PC-board may be defective, and you should contact an authorized service center for repair.
  • A
    amyfisherAug 31, 2025
    Why is my Gree Air Conditioner not heating properly?
    • J
      Julie HallAug 31, 2025
      A Gree Air Conditioner may have a poor heating effect due to several reasons. The filter may be dirty, so clean or replace it. Ensure all doors and windows are closed. The temperature setting might be too low, so increase it. There could also be insufficient refrigerant, possibly from a leak, so check for refrigerant leaks and refill as necessary.
  • K
    Kenneth HancockSep 2, 2025
    What to do if my Gree Air Conditioner shows a communication malfunction?
    • A
      Audrey CrossSep 2, 2025
      If your Gree Air Conditioner displays a communication malfunction, the first step is to check the communication wiring to ensure it is properly connected.
  • L
    leecoxSep 4, 2025
    What to do if Gree Air Conditioner shows water overflow protection?
    • W
      Whitney HarrisonSep 4, 2025
      If your Gree Air Conditioner is experiencing water overflow protection, examine the water drainage system for any blockages that may be causing the issue.
  • W
    wcampbellSep 6, 2025
    Why does my Gree Air Conditioner show indoor fan protection?
    • M
      Michelle MeyerSep 6, 2025
      If your Gree Air Conditioner displays an indoor fan protection error, ensure the fan is not obstructed or frozen, which may be triggering the protection mechanism.

Summary

Preface

Safety Precautions

Product Introduction

Names of Key Components

Identifies the main parts of the indoor unit, including air outlet, filter, and fittings.

Rated Working Condition

Details the nominal indoor and outdoor operating temperature and humidity conditions.

Unit Functions

Lists available functions and compatibility with different controllers for the unit.

Preparations for Installation

Standard Fittings

Lists and describes the provided accessories required for unit installation.

Installation Position Selection

Provides guidelines for choosing the optimal and safe location for unit installation.

Requirements of communication wire selection

Specifies the types and lengths of communication wires for connecting units.

Wiring Requirement

Details specifications for power cord size and air switch capacity.

Installation Instructions

Indoor unit installation

Covers ceiling opening dimensions, suspension bolt positions, and unit suspension.

Refrigerant Pipe Connection

Explains the procedure for connecting refrigerant pipes, including torque specifications.

Drainage Pipe Installation and Drainage System Testing

Guides on installing the drainage pipe and performing system tests to prevent leaks.

Panel installation

Describes how to detach, hang, and secure the decorative panel to the unit body.

Wired controller installation

Advises to contact a dealer for wired controller installation and refer to its manual.

Wiring Work

Connection of Wire and Patch Board Terminal

Details how to strip wires and connect them securely to terminal boards.

Power Cord Connection

Emphasizes unified power supply for all indoor units for simultaneous ON/OFF.

Connection of Communication Wire between Indoor Unit and Outdoor Unit(or indoor unit)

Explains connecting communication wires to specific terminals (D1, D2) on the unit.

Connection of Communication Wire for Wired Controller

Guides on connecting communication wires to terminals (H1, H2) for the wired controller.

Routine Maintenance

Cleaning of Filter

Provides instructions for removing, cleaning, and drying the air filters.

Maintenance before the Seasonal Use

Lists checks for air inlet/outlet, grounding, and power/communication connections.

Maintenance after the Seasonal Use

Recommends running in fan mode to dry the unit and disconnecting power when unused.

Table of Error Codes for Indoor Unit

Gree GMV-ND125T/A-T Specifications

General IconGeneral
BrandGree
ModelGMV-ND125T/A-T
CategoryAir Conditioner
LanguageEnglish

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