Goodwe GW15K-ET User Manual

Goodwe GW15K-ET

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User Manual

Hybrid Inverter

ET Series

15-30kW

V1.6-2024-03-20

Table of Contents

Other manuals for Goodwe GW15K-ET

Quick Installation Guide18 pages

Questions and Answers:

P
patricia56Aug 25, 2025
Why is my Goodwe Inverter device offline on the APP?
- S
  sbarrettAug 25, 2025
  If the APP displays that your Goodwe Inverter is offline, it could be due to a communication failure or equipment failure. Check whether the quantity of parallel machines in the system is the same with the actual connected ones. If it is, get the SN of the corresponding offline inverter from the equipment list, and troubleshoot the corresponding inverter according to its user manual. Check whether the communication connection of the equipment is normal, with no loose, aging or wrong connection, etc.
C
Cheryl RoseAug 29, 2025
What to do if Goodwe GW15K-ET shows Internal Comm Loss?
- P
  Patrick HernandezAug 30, 2025
  If your Goodwe Inverter is experiencing an Internal Comm Loss, which can be caused by a frame format error, parity checking error, CAN bus offline, hardware CRC error, incorrect send/receive control bit, or transmission to an unauthorized unit, try disconnecting the AC output switch and DC input switch, then reconnect them after 5 minutes.
J
Joyce CarterAug 30, 2025
What causes Abnormal GFCI 30mA error on Goodwe GW15K-ET Inverter?
- R
  rodriguezdavidAug 30, 2025
  If your Goodwe Inverter shows an Abnormal GFCI 30mA error, it indicates that the input insulation impedance becomes low when the inverter is working. If this occurs occasionally, it may be due to a cable exception, and the inverter will recover automatically once the problem is resolved. If the problem occurs frequently or persists, check whether the impedance between the PV string and PE is too low.
Z
zgonzalezAug 30, 2025
What does LVRT Undervoltage mean on Goodwe GW15K-ET Inverter?
- K
  Kelly BarronAug 31, 2025
  If your Goodwe Inverter displays LVRT Undervoltage, it indicates a utility grid exception where the duration of the utility grid exception exceeds the set time of LVRT. If this problem occurs occasionally, the utility grid may be temporarily abnormal, and the inverter will recover automatically once the grid returns to normal.
J
jonathankellyAug 31, 2025
How to fix AC HCT Check abnormal error on Goodwe GW15K-ET Inverter?
- D
  Daniel BaileyAug 31, 2025
  If your Goodwe Inverter displays an AC HCT Check abnormal error, indicating that the sampling of the AC HCT is abnormal, try disconnecting the AC output switch and DC input switch, then reconnect them after 5 minutes.
K
Kimberly RyanAug 31, 2025
What to do if Goodwe GW15K-ET shows GFCI HCT Check abnormal?
- C
  christopher84Sep 1, 2025
  If your Goodwe Inverter displays a GFCI HCT Check abnormal error, indicating that the sampling of the GFCI HCT is abnormal, try disconnecting the AC output switch and DC input switch, then reconnect them after 5 minutes.
C
Cassandra SmithSep 1, 2025
Why does my Goodwe Inverter show Relay Check abnormal?
- G
  Gabriel PotterSep 1, 2025
  If your Goodwe Inverter displays a Relay Check abnormal error, which can be caused by a relay being abnormal or short-circuited, an abnormal control circuit, or an abnormal AC cable connection (like a virtual connection or short circuit), try disconnecting the AC output switch and DC input switch, then reconnect them after 5 minutes.
A
acampbellSep 1, 2025
How to troubleshoot Flash Fault on Goodwe Inverter?
- L
  Lisa Williams DDSSep 2, 2025
  If your Goodwe Inverter displays a Flash Fault, indicating that the internal Flash storage is abnormal, try disconnecting the AC output switch and DC input switch, then reconnect them after 5 minutes.
M
Megan ScottSep 2, 2025
What does Large DC of AC current L1 mean on Goodwe GW15K-ET?
- S
  Stephanie ChungSep 2, 2025
  If your Goodwe Inverter shows Large DC of AC current L1, it means that the DC component of the output current exceeds the safety or default range. If the problem is caused by an external fault like a utility grid exception or frequency exception, the inverter will recover automatically after solving the problem.

Goodwe GW15K-ET Specifications

General

Brand	Goodwe
Model	GW15K-ET
Category	Inverter
Language	English

Summary

Safety Precautions

General Safety Guidelines

Essential safety rules for handling and operating the inverter.

PV String Safety

Safety measures for connecting and managing photovoltaic strings.

Inverter Safety

Critical safety instructions specific to the inverter's operation.

Battery Safety

Product Introduction

System Working Modes

Installation Guide

Installation Site Requirements

Environmental and location criteria for inverter installation.

Mounting and Angle Requirements

Moving and Installing the Inverter

Step-by-step instructions for physical mounting.

Electrical Connections

System Wiring Overview

Diagrams illustrating system electrical connections.

Electrical Connection Safety

Crucial safety rules for making electrical connections.

PE Cable Connection

DC Input (PV) Connection

How to connect photovoltaic strings to the inverter.

Battery Cable Connection

Detailed steps for connecting the battery system.

AC Cable Connection

Procedures for connecting the inverter to the AC power source.

Communication Cable Setup

Equipment Commissioning

Pre-Power-On Checks

Essential checks before energizing the equipment.

Power-On Procedure

Steps to safely turn on the inverter system.

System Configuration

SolarGo App Configuration

SEMS Portal Monitoring

Maintenance and Troubleshooting

Powering Off the Inverter

Safe procedure for shutting down the inverter for maintenance.

Troubleshooting Common Issues

Solutions for frequently encountered inverter faults.

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