Goodwe ET Series User Manual

Goodwe ET Series

80 pages

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User Manual

V1.1-2022-12-20

Hybrid Inverter

ET Series / ET Plus Series

5.0-10.0kW

AC-Coupled Inverter

BT Series

5.0-10.0kW

Table of Contents

Other manuals for Goodwe ET Series

Quick Installation Guide18 pages

Connection Manual3 pages

Questions and Answers:

B
Brandon ValdezAug 28, 2025
What does Grid Rapid Overvoltage mean on Goodwe Inverter?
- L
  loripetersonAug 28, 2025
  A 'Grid Rapid Overvoltage' error on your Goodwe Inverter indicates an abnormal or ultra-high grid voltage. If the problem occurs occasionally, it may be a temporary issue with the utility grid, and the inverter should recover automatically. If the problem occurs frequently, check whether the grid voltage is within the allowed range. If it exceeds the permissible range, contact the local power company. If the grid voltage is within the permissible range, you may need to modify the grid overvoltage rapid protection threshold after obtaining consent from the local power company.
D
Deborah HarperAug 28, 2025
What causes an Abnormal GFCI 30mA error on a Goodwe ET Inverter?
- D
  dlutzAug 28, 2025
  An 'Abnormal GFCI 30mA' error on your Goodwe Inverter indicates that the input insulation impedance has become low during operation. If this occurs occasionally, it might be due to a cable issue, and the inverter should recover automatically once the problem is resolved. However, if the problem occurs frequently or persists, check whether the impedance between the PV string and PE is too low.
S
Susan MillsSep 13, 2025
How to fix GFCI HCT Check abnormal on Goodwe ET?
- T
  Tammy MillerSep 13, 2025
  To address a 'GFCI HCT Check abnormal' error on your Goodwe Inverter, disconnect the AC output switch and DC input switch, then reconnect them after 5 minutes. This error indicates that the sampling of the GFCI HCT is abnormal.
R
robert60Sep 5, 2025
What to do if Goodwe Inverter shows Utility Loss?
- A
  Angela JacobsonSep 5, 2025
  If your Goodwe Inverter displays a 'Utility Loss' error, it could be due to a failure in the utility grid power supply or a disconnection in the AC cable. The alarm should clear automatically once the grid power is restored. Ensure the AC cable is properly connected and the AC breaker is turned on.
P
philipfordSep 8, 2025
What to do for Grid 10min Overvoltage on Goodwe ET Inverter?
- T
  Terrance HarrellSep 8, 2025
  A 'Grid 10min Overvoltage' error on your Goodwe Inverter indicates that the moving average of the grid voltage in 10 minutes exceeds the safety requirements. If the problem occurs occasionally, the utility grid may be temporarily abnormal, and the inverter will recover automatically after detecting that the utility grid is normal. If the problem occurs frequently, check whether the grid voltage is within the allowed range. Contact the local power company if the grid voltage exceeds the permissible range. If the grid voltage is within the permissible range, modify the grid overvoltage rapid protection threshold after obtaining consent from the local power company.
E
Eric AguilarSep 12, 2025
What to do if Goodwe ET Inverter shows Large DC of AC current L1?
- S
  Sean KingSep 12, 2025
  A 'Large DC of AC current L1' error on your Goodwe Inverter 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.
T
Tiffany HartAug 26, 2025
What to do if my Goodwe Inverter shows 'Low Insulation Res.'?
- N
  nguerraAug 26, 2025
  A 'Low Insulation Res.' error on your Goodwe Inverter typically means one of two things: either the PV string is short-circuited to PE, or the PV system is in a moist environment with poorly insulated cables. To resolve this: 1. Check if the resistance of the PV string to PE exceeds 50k?. If not, identify and fix the short circuit. 2. Verify that the PE cable is correctly connected. 3. If the resistance drops on rainy days, reset the ISO via the SolarGo app.
T
Tyler GonzalezAug 26, 2025
Why is my Goodwe ET showing a utility loss?
- K
  kreyesAug 26, 2025
  If your Goodwe Inverter is showing a utility loss, it could be due to a failure in the utility grid power or because the AC cable is disconnected, or the AC circuit breaker is off. Once the grid power supply is restored, the alarm should automatically clear. Ensure the AC cable is securely connected and the AC circuit breaker is turned on.
J
Joshua HoweAug 25, 2025
How to troubleshoot on-grid and backup connections in Goodwe Measuring Instruments?
- D
  Dakota ReyesAug 26, 2025
  To resolve on-grid and backup connection problems with Goodwe Measuring Instruments, verify that the on-grid is connected to the power grid and the backup is connected to the loads. Also, check that the polarities (e.g. L1/L2/L3/N) are correctly aligned.
K
kjonesSep 4, 2025
What to do if Goodwe ET shows PV Continuous Hardware Overcurrent?
- A
  Ashley ReedSep 4, 2025
  To address a 'PV Continuous Hardware Overcurrent' error on your Goodwe Inverter, disconnect the AC output switch and DC input switch, then reconnect them after 5 minutes. If the problem persists, contact the dealer or after-sales service.

Goodwe ET Series Specifications

General

Type	Hybrid Inverter
Number of MPPTs	2
THDi	<3%
Nominal AC Voltage	230V
AC Voltage Range	180V to 280V
Operating Temperature Range	-25°C to 60°C
Communication Interfaces	RS485, WiFi

Summary

Safety Precautions

General Safety Guidelines

Inverter and Battery Safety

Installation

Installation Requirements

Inverter Installation Procedures

Step-by-step guide for safely moving and mounting the inverter.

Electrical Connection

Safety Precautions

System Wiring Diagrams

Illustrates typical wiring diagrams for different grid configurations.

Cable Connections

Equipment Commissioning

Pre-Commissioning Checks

Power On Procedure

Step-by-step guide to safely power on the inverter system.

System Commissioning

Indicators and Buttons

Configuration and Monitoring

Maintenance

Powering Off and Removal

Troubleshooting Guide

Provides solutions for common faults and errors encountered with the inverter.

Routine Maintenance Schedule

Technical Parameters

ET/ET Plus Series Specifications

Detailed technical specifications for ET and ET Plus series inverters.

BT Series Specifications

Detailed technical specifications for BT series inverters.

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