Goodwe GW5K-ET User Manual (English)

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Questions and Answers:

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Jason AcevedoSep 3, 2025
Why am I getting an Abnormal Ground error on my Goodwe Inverter?
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  Christopher WarrenSep 3, 2025
  An 'Abnormal Ground' error on your Goodwe Inverter can be caused by two main issues: either the PE cable of the inverter is not properly connected, or the L and N cables are connected reversely when the output of the PV string is grounded. To resolve this, first, check whether the PE cable of the inverter is connected properly. Second, check whether the L and N cables are connected reversely if the output of the PV string is grounded.
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Elizabeth CharlesAug 25, 2025
What to do if Smart Meter & CT connections are not working on Goodwe Measuring Instruments?
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  Christopher ClarkeAug 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.
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Dustin BrownAug 25, 2025
How to troubleshoot on-grid and backup connections in Goodwe Measuring Instruments?
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  David MurphyAug 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.
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Carlos CollinsAug 26, 2025
Why is my Goodwe Inverter showing a utility loss?
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  Melvin SnyderAug 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.
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Danny RitterAug 27, 2025
What to do if my Goodwe GW5K-ET Inverter shows 'Low Insulation Res.'?
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  Charles MayerAug 27, 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.
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Sarah SandovalSep 10, 2025
What causes Anti Reverse power Failure on Goodwe Inverter?
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  Henry ConleySep 10, 2025
  An 'Anti Reverse power Failure' on your Goodwe Inverter is due to abnormal fluctuation of load. If the exception is caused by an external fault, the inverter will recover automatically after solving the problem. If the problem occurs frequently and the PV station cannot work properly, contact the dealer or the after-sales service.
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Andrew HudsonSep 8, 2025
Why is my Goodwe Inverter showing a Cavity Overtemperature error?
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  Maria BrooksSep 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.
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Victoria NavarroSep 9, 2025
What does Anti-islanding mean on Goodwe GW5K-ET?
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  melissa33Sep 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.
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angela40Sep 2, 2025
How do I fix a PV Input Overvoltage error on my Goodwe GW5K-ET?
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  david69Sep 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.
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Jack LinAug 31, 2025
What causes an Abnormal GFCI 30mA error on a Goodwe GW5K-ET Inverter?
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  harrisonmargaretSep 1, 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.