GoodWe ET Series Commercial Hybrid Inverter and Lynx Home F Setup Guide
Updated 7 September 2026 · By SolarNevs Research Desk, Dealer surveys + verified sources · 4 sources · Method ↗
Key Takeaways
- The GoodWe ET Series 15K-30K hybrid inverters integrate with high-voltage Lynx Home F batteries for commercial energy storage.
- Monitoring is primarily managed through the SEMS Portal web platform for remote access and the SolarGo app for local diagnostics.
- Many operational issues are indicated by specific error codes, which often point to grid conditions, PV array faults, or battery communication problems.
- Safety-critical faults like "Isolation Failure" or "PE Loss" require immediate attention from a qualified solar technician.
Setting Up and Monitoring GoodWe ET Series Inverters with Lynx Home F Batteries
This guide outlines the setup and monitoring procedures for GoodWe ET Series 15K-30K three-phase commercial hybrid inverters when integrated with Lynx Home F high-voltage battery systems. It covers the available monitoring platforms and common fault codes to assist with system operation and initial troubleshooting. Due to the modular nature and specific project requirements of commercial installations, detailed wiring diagrams and specific battery pairing settings are typically provided by the installer based on the system design.
Understanding GoodWe Hybrid Systems and Monitoring
GoodWe ET Series hybrid inverters manage power flow between solar PV arrays, the grid, and the Lynx Home F battery system. The inverter optimises energy usage, stores excess solar power, and provides backup during grid outages. Effective monitoring is crucial for ensuring optimal performance and identifying potential issues.
GoodWe offers several tools for monitoring and managing their inverter systems:
- SEMS Portal: This is a web-based platform accessible at
semsportal.com. It allows users to manage power plants, check operating data, and view alarm information remotely. It is suitable for all GoodWe inverter models. - SolarGo App: This mobile application is designed for local monitoring of ET, EH, EHB, EM, and BH hybrid series inverters. It connects via Bluetooth or Wi-Fi, providing direct access to parameters and alarms from a smartphone.
- Smart Energy Controller (SEC1000): For larger commercial installations, the SEC1000 integrates an EzLogger Pro datalogger. This controller supports up to 60 inverters and provides three RS485 interfaces for inverter communication, along with an Ethernet port for network connection.
- ProMate Software: This software is used for configuring devices like the SEC1000 and EzLogger Pro. It allows modification of network IP addresses, configuration of connected inverters, time settings, and other advanced functions.
Connecting the inverter to a local Wi-Fi network is recommended for remote monitoring, firmware updates, and receiving fault notifications. A common issue is the inverter stopping data reporting to the SEMS Portal due to Wi-Fi disconnection.
Common Faults and Troubleshooting for GoodWe ET Series and Lynx Home F Systems
When an issue arises with a GoodWe ET Series inverter or its connected Lynx Home F battery, the system typically displays an error code or alarm. Understanding these codes is the first step in diagnosing and resolving problems.
Code / Alarm Name | Meaning | What to do | Source |
|---|---|---|---|
Fac Failure (Error 03) | Grid frequency outside the permitted range | Automatic. The inverter restarts within five minutes once frequency normalises. | Community |
Vac Failure (Error 15) | Grid voltage outside the permitted range | The inverter restarts automatically when voltage drops. If this appears daily, your installer can request a network voltage assessment or review the inverter’s volt-watt response settings. | Community |
Isolation Failure (Error 14) | Ground insulation impedance between the PV array and earth is too low | Contact your installer. Possible causes: degraded cable insulation, moisture in a rooftop DC isolator or MC4 connector, or a panel junction box fault. | Community |
Ground Failure (Error 22) | High ground leakage current detected | Contact your installer. Do not ignore. This is a safety-related fault indicating current is leaking to earth through the PV array or wiring insulation. | Community |
GFCI Failure | Ground fault circuit interrupter detection circuit has failed | Contact your installer. The safety monitoring circuit itself has a fault, which means it cannot properly detect earth leakage. | Community |
Utility Loss | Grid disconnection. No mains supply detected | Check your main switchboard circuit breakers. Confirm whether there is an area-wide outage by checking your local utility's outage map. | Community |
PV Over Voltage (Error 17) | DC input voltage from the solar panels exceeds the inverter’s maximum limit | Contact your installer immediately. This should not occur in a correctly designed system. | Community |
Temperature Too High (Error 18) | Internal temperature has exceeded the safe operating limit | Check ventilation around the inverter. Clear any debris, spider webs, or vegetation within 300mm of the heatsink fins. | Community |
PE Loss | Protective Earth connection lost. The inverter has detected a problem with grounding | Contact your installer. This is safety-critical. The inverter has lost its earth connection, which could be caused by a loose terminal, corroded conductor, or damaged earthing system. | Community |
DC Injection Too High (Error 12) | The DC component of the AC output current exceeds the permitted level | Switch off both the AC and DC isolators. Wait five minutes, then restart (DC on first, then AC). If the error persists, contact your installer. | Community |
Relay Check Failure (Error 01) | The internal relay self-test has failed. The inverter cannot confirm its isolation relay is functioning correctly | Restart. If persistent, the relay may need replacement. Contact your service provider. | Community |
Battery BMS Communication Failure | The inverter has lost communication with the battery’s management system | Check that the BMS communication cable between the inverter and battery is securely connected. | Community |
Battery Voltage Too High | The battery voltage exceeds the inverter’s maximum battery input specification | Contact your installer. This should not occur with a correctly configured compatible battery. | Community |
Battery Voltage Too Low | The battery voltage has dropped below the minimum operating threshold | If the battery has been fully discharged or disconnected for an extended period, it may need to be manually restarted. | Community |
Battery SOC Low | Battery state of charge is critically low | The battery will stop discharging when it reaches the minimum SOC threshold (configurable in SolarGo). This is protective behaviour. | Community |
Back-up Overload | The load on the backup output exceeds the inverter’s rated backup capacity | Reduce the load on your backup circuit. Turn off high-draw appliances connected to the backup supply (electric heaters, large air conditioners, kettles). | Community |
Battery Over-temperature | The battery temperature exceeds the safe operating range | Check ventilation around the battery installation. Ensure nothing is blocking airflow. | Community |
Battery Under-temperature | The ambient temperature is too low for the battery to operate | Most lithium batteries will not charge or discharge below 0°C to 5°C. | Community |
BMS Status: Abnormal | The battery management system is reporting a fault condition | Contact your installer or battery manufacturer. The specific fault will be detailed in the battery’s own monitoring system or app. | Community |
SOC Reset to 95% | The battery state of charge has been automatically reset to 95% | This typically occurs when BMS communication drops out while using lithium batteries. | Community |
Installation
[!CAUTION] Always isolate all DC and AC electrical supplies and use insulated tools before undertaking terminal connections. Safety and Switchgear Requirements
Installation and maintenance of GoodWe equipment, including the ET Series inverter and Lynx Home F battery, must be performed by qualified personnel. All work must comply with local electrical standards, regulations, and the requirements of local power authorities.
Before any installation or maintenance:
- Ensure all connections between the device and the AC output of the inverter, and the device and the grid, are disconnected to avoid electric shock.
- Always connect the Protective Earth (PE) cable first during installation and disconnect it last during removal.
- Never touch any electrical parts of the device (internal components, cables) when it is in operation to prevent electric shock.
Safety-critical considerations:
- Arc faults in DC wiring pose a significant fire risk. If an arc fault is suspected, do not restart the system and arrange for immediate professional inspection.
- Faults such as "Isolation Failure," "Ground Failure," "PE Loss," and "GFCI Failure" indicate potential electrical safety risks like earth faults or insulation breakdown. These require prompt action from a qualified electrician.
All electrical installations must comply with local electrical standards and obtain necessary permissions from local power authorities before grid connection.
What the published sources do not tell you
The provided documentation for the GoodWe ET Series 15K-30K commercial hybrid inverter and Lynx Home F high-voltage battery has several gaps:
- Specific Model Details: Detailed specifications such as exact power ratings, voltage ranges, current limits, dimensions, weight, efficiency, battery capacity, or battery chemistry for the ET Series 15K-30K or Lynx Home F are not available.
- Installation Instructions: Specific installation steps, detailed wiring diagrams, or mounting requirements for the ET Series inverter or Lynx Home F battery are not provided.
- Battery Pairing and Configuration Settings: The precise settings, values, or protocols required for pairing the Lynx Home F battery with the ET Series inverter are not detailed.
- Firmware Update Procedures: While remote firmware updates are mentioned, specific step-by-step instructions or version requirements for the ET Series or Lynx Home F are not provided in official GoodWe manuals.
- Warranty Information: General warranty terms or specific warranty periods for these particular products are not present.
Frequently asked questions
What is the SolarGo app used for with GoodWe ET Series inverters?
The SolarGo app is used for local monitoring and parameter checking for GoodWe ET/EH/EHB/EM/BH hybrid series inverters. It allows connection via Bluetooth or Wi-Fi to view operational data and alarms directly from the inverter.
How do I check error codes for my GoodWe ET Series inverter remotely?
Error codes can be checked remotely by logging into the SEMS Portal at semsportal.com. Navigate to your plant and select the 'Alarms' tab to view current and historical fault information.
What should I do if my GoodWe ET Series inverter shows 'Isolation Failure (Error 14)'?
An 'Isolation Failure (Error 14)' indicates that the ground insulation impedance between the PV array and earth is too low. This is a safety-related fault; contact your installer immediately for inspection, as it could be due to degraded cable insulation or moisture.
Why would my GoodWe ET Series inverter show 'Battery BMS Communication Failure'?
This error means the inverter has lost communication with the battery's management system. The first step is to check that the BMS communication cable between the inverter and the Lynx Home F battery is securely connected at both ends.
What does 'Back-up Overload' mean on a GoodWe ET Series inverter?
A 'Back-up Overload' alarm signifies that the electrical load connected to the inverter's backup output has exceeded its rated capacity. To resolve this, reduce the load by turning off high-power appliances on the backup circuit.
References
- GoodWe Technologies Co., Ltd. - SEC1000 User Manual — accessed 29 August 2026
- GoodWe Technologies Co., Ltd. - SEMS Portal User Manual — accessed 29 August 2026
- PSW Energy - GoodWe Error Codes — accessed 29 August 2026
- GoodWe Technologies Co., Ltd. - SEC1000 Datasheet — accessed 29 August 2026
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