Gree GMV-400WM/E-X - User Manual

Other manuals for Gree GMV-400WM/E-X

Service Manual308 pages

Questions and Answers

M
Ms. Brittany EdwardsJul 25, 2025
What to do if my Gree GMV-400WM/E-X Air Conditioner has communication failure between indoor and ODUs and IDU's communicator?
- A
  alvin15Jul 25, 2025
  If there is a communication failure between the indoor and outdoor units (ODUs) and the indoor unit's (IDU) communicator, check the network between the IDU and communicator. Also, if the communicator is disconnected, check the network between the IDUs and ODUs and between the IDU and communicator. Check if the cables connecting the control board of the ODU and the IDU and connecting the IDU and communicator are loose and reconnect them if needed. Alternatively, the communicator controller may be faulty, requiring replacement of the control board.
C
caroline40Jul 29, 2025
What to do if my Gree GMV-400WM/E-X Air Conditioner has communication failure between main control board and inverter compressor drive?
- J
  Jennifer LewisJul 30, 2025
  If there is a communication failure between the main control board and the inverter compressor drive, check if the cable connecting the control board and the compressor's drive board is loose and reconnect it if necessary. Also, check if the cable connecting the control board and compressor's drive board is broken and replace it if needed. Check the contact of the communication cable connecting the control board and compressor's drive board. If the communicator is faulty, replace the control board.
D
Dr. Christina OrtizAug 3, 2025
Why does my Gree GMV-400WM/E-X show power phase sequence protection?
- K
  Kenneth DurhamAug 3, 2025
  Power phase sequence protection can occur if the three-phase power cable is not connected correctly. Check the connection of the power cable. Alternatively, the control board may need to be replaced.
A
Austin PerezAug 7, 2025
What to do if my Gree GMV-400WM/E-X Air Conditioner has faults in the constant frequency compressor's current sensor?
- J
  Joshua CopelandAug 7, 2025
  If there are faults in the constant frequency compressor's current sensor and the compressor is not starting, check if the AC contact is closed. If not, replace the AC contact. If the connection is loose, reconnect it. Also, consider replacing the current detection board or the main board.
J
Jessica MaynardAug 12, 2025
How to fix wrong outdoor capacity code setting on my Gree GMV-400WM/E-X Air Conditioner?
- B
  Billy FryeAug 12, 2025
  If the outdoor capacity code setting is wrong because the capacity code is incorrect, modify the capacity code setting. Alternatively, the main board may need to be replaced.
A
Anthony BlakeAug 15, 2025
What to do if my Gree GMV-400WM/E-X has faults in the ODU's main board?
- S
  stanleyandrewAug 15, 2025
  If there are faults in the ODU's main board, such as memory and address chip exceptions, replace the small CPU board. You may also need to replace the control board.
W
wlynchAug 20, 2025
How to fix wrong emergency operation dial code on Gree GMV-400WM/E-X?
- A
  Amy RossAug 20, 2025
  If the emergency operation dial code is wrong because the dial setting is incorrect, modify the dial setting. Alternatively, the main board may need to be replaced.

Summary

Owners Manual

Safety Notices

General Safety Warnings and Symbols

Explains safety symbols, general warnings, and prohibited operations.

Installation Environment Safety

Specifies safe installation locations, avoiding corrosive or explosive environments.

Electrical Safety and Grounding

Details electrical safety measures, grounding requirements, and power cord handling.

Refrigerant Handling Safety

Covers safety procedures during installation, especially concerning refrigerant.

Preparation before Installation

Installation Site Selection

Guidelines for choosing a suitable and safe location for unit installation.

Seasonal Wind Installation Guidelines

Snowfall Installation Guidelines

Piping Work Requirements

Specifies requirements for pipe diameter, wall thickness, and refrigerant systems.

Installation Instruction

Piping System Design

Covers piping diagrams, lengths, drop heights, module connections, and manifold specs.

Pipeline Installation and Insulation

Refrigerant System Handling

Procedures for air purging, refrigerant charging, and leak precautions.

Electric Wiring Guidelines

Covers wiring precautions, power cord connection, and diagrams.

System Communication Setup

Overview of system communication, modes, wiring, and controller connections.

External Electrical Wiring Diagrams

Check Items after Installation and Trial Run

Installation Check Items

Trial Run and Debugging Procedures

Steps for preparing and executing the trial run and debugging process.

Common Malfunction and Troubleshooting

Troubleshooting Common Unit Issues

Error Indication

Indoor Unit Error Codes

Outdoor Unit Error Codes

Maintenance and Care

After-sales Service

Gree GMV-400WM/E-X Specifications

General

Model	GMV-400WM/E-X
Cooling Capacity	40.0 kW
Heating Capacity	45.0 kW
Refrigerant	R410A
Net Weight (Outdoor Unit)	280 kg
Operating Temperature Range (Cooling)	-5°C to 48°C
Type	VRF
Power Supply	380-415V/3Ph/50Hz
Net Weight (Indoor Unit)	Varies depending on the connected indoor unit model