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Goodwe GW8K-ET - User Manual

Goodwe GW8K-ET
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

Other manuals for Goodwe GW8K-ET

Questions and Answers

  • J
    Jacqueline JonesSep 15, 2025
    What to do if Goodwe Inverter shows PV Continuous Hardware Overcurrent?
    • K
      Katie McgeeSep 16, 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.
  • T
    troy04Aug 25, 2025
    What to do if Smart Meter & CT connections are not working on Goodwe Measuring Instruments?
    • J
      Jessica MccoyAug 25, 2025
      To resolve issues with Smart Meter & CT connections in your Goodwe Measuring Instruments, ensure that the Smart Meter and CT are properly connected between the house loads and the grid. Also, make sure to follow the Smart Meter direction sign on the CT.
  • C
    Christina CochranAug 26, 2025
    How to troubleshoot on-grid and backup connections in Goodwe Measuring Instruments?
    • N
      Nicole MartinezAug 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
    Kelly RodriguezAug 27, 2025
    Why is my Goodwe Inverter showing a utility loss?
    • C
      cruzjessicaAug 27, 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.
  • L
    Lisa RiosSep 16, 2025
    What to do if Goodwe Inverter shows PV Continuous Software Overcurrent?
    • M
      Mary VaughnSep 16, 2025
      To address a 'PV Continuous Software 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.
  • J
    Juan CraneSep 23, 2025
    How to check battery connections on Goodwe Measuring Instruments?
    • B
      Bryan WebbSep 23, 2025
      To solve battery connection issues in Goodwe Measuring Instruments, confirm that the connections between the ET and the battery are properly established.
  • J
    Justin StoutSep 8, 2025
    Why is my Goodwe GW8K-ET showing a Cavity Overtemperature error?
    • D
      debrasuttonSep 8, 2025
      A 'Cavity Overtemperature' error on your Goodwe Inverter can be due to several reasons: 1. The inverter is installed in a location with poor ventilation. 2. The ambient temperature exceeds 60°C. 3. There is a fault with the internal fan of the inverter. To address this, first, check the ventilation and ambient temperature at the installation point. If ventilation is poor or the temperature is too high, improve ventilation and heat dissipation. If both are normal, contact the dealer or after-sales service.
  • A
    Allison HullSep 9, 2025
    What does Anti-islanding mean on Goodwe GW8K-ET Inverter?
    • L
      Leonard BeardSep 9, 2025
      An 'Anti-islanding' error on your Goodwe Inverter indicates that the utility grid is disconnected, but the grid voltage is maintained due to the loads, according to safety regulations. Check whether the utility grid is disconnected and contact the dealer or after-sales service.
  • R
    Renee ThomasSep 2, 2025
    How do I fix a PV Input Overvoltage error on my Goodwe GW8K-ET?
    • S
      Sherri WatsonSep 2, 2025
      A 'PV Input Overvoltage' error on your Goodwe Inverter means that too many PV panels are connected in series in the PV string. Check the serial connection of the PV array, ensuring that the open circuit voltage of the PV string does not exceed the inverter's maximum operating voltage.
  • K
    Katelyn TaylorAug 31, 2025
    What causes an Abnormal GFCI 30mA error on a Goodwe GW8K-ET Inverter?
    • K
      Katie HunterAug 31, 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.

Summary

Safety Precaution

General Safety

Outlines essential safety precautions for handling the equipment.

Inverter Safety

Critical safety guidelines related to the inverter's operation and maintenance.

Battery Safety

Safety precautions for connecting and managing batteries with the inverter.

Product Introduction

Installation

Installation Requirements

Specifies environmental conditions and site preparation for installation.

Inverter Installation

Step-by-step instructions for physically mounting the inverter.

Electrical Connection

Safety Precaution

Crucial safety instructions for performing electrical connections.

Connecting the DC Input Cable (PV)

Guide for connecting the solar panel DC input.

Connecting the Battery Cable

Instructions for connecting the battery to the inverter.

Connecting the AC Cable

Steps for connecting the inverter to the AC grid or loads.

Equipment Commissioning

Power On

Sequence of steps to safely power up the inverter.

System Commissioning

Maintenance

Power OFF the Inverter

Procedures for safely shutting down the inverter.

Troubleshooting

Common faults, causes, and solutions for diagnosing issues.

Technical Parameters

Goodwe GW8K-ET Specifications

General IconGeneral
ModelGW8K-ET
CategoryInverter
Rated Power8000 W
Max DC Voltage1000 V
Max Input Current per MPPT12.5 A
Number of MPPTs2
Max Efficiency98.3%
Protection RatingIP65
Max DC Power10400 W
Start-up Voltage180 V
Max AC Apparent Power8800 VA
THDi<3%
AC Grid Frequency50 Hz / 60 Hz
Euro Efficiency97.5%
DC SwitchYes
Protection DegreeIP65
Cooling MethodNatural Convection
Rated AC Voltage230V
AC Voltage Range180 - 280 V
Power Factor0.8 leading ... 0.8 lagging
Operating Temperature Range-25°C to +60°C
CommunicationRS485, Wi-Fi, LAN

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