Goodwe GW73KLV-HT - User Manual

Other manuals for Goodwe GW73KLV-HT

Questions and Answers

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jessicabridgesSep 10, 2025
What to do if my Goodwe GW73KLV-HT Inverter displays 'Relay Fail'?
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  Zachary MuellerSep 10, 2025
  If your Goodwe Inverter is showing a 'Relay Fail' error, it could be due to several reasons: the relay itself is abnormal or short-circuited, the control circuit is malfunctioning, or there's an issue with the AC cable connection, such as a loose connection or short circuit. To resolve this, disconnect the AC output switch and DC input switch, wait 5 minutes, and then reconnect them. If the problem continues, contact your dealer or after-sales service for further assistance.
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Emily WhiteAug 22, 2025
Why does my Goodwe Inverter show a 'Vac Fail' error?
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  Dean HinesAug 22, 2025
  If your Goodwe Inverter displays 'Vac Fail', it means the utility grid voltage is outside the acceptable range. Ensure the grid voltage is within the allowed range. Also, check that the phase sequence of the AC cables is correct, and the neutral wire and PE cable are properly and securely connected.
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michael07Aug 25, 2025
What to do if my Goodwe Inverter displays 'Isolation Fail'?
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  smalljoseAug 25, 2025
  If your Goodwe Inverter shows 'Isolation Fail', it may be caused by a short circuit to the ground in the PV system or moisture affecting the circuit's insulation. Check the PV input cables for any breaks. Ensure the module frames and metal bracket are securely grounded, and verify the AC side is properly grounded. In Australia and New Zealand, inverters with WiFi will send an email about the fault automatically. If there is no WiFi, the inverter's buzzer will sound for 1 minute, repeating every 30 minutes if the problem continues.
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Cody DennisAug 26, 2025
How to fix 'Over Temperature' error on Goodwe GW73KLV-HT Inverter?
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  Jasmine DavisAug 27, 2025
  If your Goodwe Inverter displays 'Over Temperature', it could be due to poor ventilation, high ambient temperature, or the inverter working improperly. Check the installation environment to ensure it meets ventilation requirements for heat dissipation. Make sure the fans are working correctly and are not blocked. Also, verify that the operating ambient temperature is not too high.
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Diana JonesAug 27, 2025
What does 'Fac Fail' mean on a Goodwe GW73KLV-HT Inverter?
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  Melanie JuarezAug 27, 2025
  If your Goodwe Inverter displays 'Fac Fail', it indicates that the utility grid frequency is outside of the allowed range. Check whether other electrical devices under the same grid connection point are working normally, and whether the main supply is normal. Ensure the grid frequency is within the allowed range. Make sure that the phase sequence of the AC cables are connected correctly, and the neutral wire and PE cable are connected properly and firmly. If the fault occurs occasionally, it may be due to an instantaneous utility grid frequency change and may not require action.
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Susan AndersonAug 29, 2025
How to troubleshoot 'ARC Fault' on Goodwe GW73KLV-HT Inverter?
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  elawsonAug 29, 2025
  If your Goodwe Inverter shows 'ARC Fault', it indicates that the PV string cables are arcing or have poor contact. Check the PV terminals and cables to ensure they are properly connected. Clear the error messages. If the fault occurs frequently, contact after-sales service.
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Larry MorganSep 18, 2025
How to fix 'SPI Comm Fail' on my Goodwe GW73KLV-HT Inverter?
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  Bruce TurnerSep 18, 2025
  If your Goodwe Inverter displays 'SPI Comm Fail', it could be due to the chip not being powered on or the chip program version being incorrect. To attempt a resolution, disconnect the AC output switch and DC input switch, then reconnect them after 5 minutes. If the problem persists, contact your dealer or after-sales service.
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kimberly72Sep 12, 2025
What does 'Night BUS Fault' mean on my Goodwe GW73KLV-HT Inverter?
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  danieldorseySep 12, 2025
  If your Goodwe Inverter displays the 'Night BUS Fault' message, it means there is a problem with the utility grid power or the AC cable is disconnected, or the AC breaker is off. To attempt a fix, disconnect the AC output switch and DC input switch, wait 5 minutes, then reconnect them. If the issue persists, contact your dealer or after-sales service.
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randytaylorSep 8, 2025
Why does my Goodwe Inverter show 'Fac Fail'?
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  Zachary WilliamsSep 8, 2025
  If your Goodwe Inverter displays 'Fac Fail', it indicates a utility grid exception where the grid frequency change rate doesn't meet local standards. If this happens occasionally, the grid may be temporarily abnormal, and the inverter should recover automatically once the grid returns to normal. However, if it occurs frequently, verify that the grid frequency is within the permissible range. Contact your local power company if the grid frequency is outside of the allowed range. If the frequency is within range, contact your dealer or after-sales service for assistance.
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Alexander EdwardsSep 5, 2025
What should I do if my Goodwe Inverter shows 'DC Bus High'?
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  Michele WilsonSep 5, 2025
  If your Goodwe Inverter displays 'DC Bus High', it indicates an internal fault. Ensure that the software is the latest version. Restart the inverter to check if it begins to work properly.

Goodwe GW73KLV-HT Specifications

General

Model	GW73KLV-HT
Max. DC Input Voltage	1100 V
MPPT Voltage Range	200-1000 V
Number of DC Inputs per MPPT	2
Rated AC Voltage	400 V
Rated Grid Frequency	50/60 Hz
Total Harmonic Distortion (THDi)	<3%
DC Switch	Yes
Topology	Transformerless
Power Factor Adjustment Range	0.8 leading to 0.8 lagging
Humidity Range	0-100%
Communication	RS485, Ethernet, Wi-Fi
Protection Features	Ground fault monitoring