What to do if my Goodwe GW15KT-DT Inverter displays 'DC inject High'?
If your Goodwe Inverter shows 'DC inject High', it means the DC injection exceeds the allowed range. Check whether the software version is the latest one. Restart the inverter and check whether the inverter can work properly.
What does 'Ground I Fail' mean on my Goodwe GW15KT-DT?
If your Goodwe Inverter displays 'Ground I Fail', it indicates that the input insulation impedance to the ground is decreasing during operation. Check if the inverter's working environment meets the requirements; for example, high humidity on rainy days can cause this. Also, ensure that the components and the AC side are properly grounded.
What does 'ARC Fault' mean on my Goodwe Inverter and how to fix it?
If your Goodwe Inverter is showing an 'ARC Fault', it could be due to the PV string cables arcing or being in poor contact. Check whether the PV terminals and cables are connected properly. If the fault occurs frequently, contact after-sales service.
Why is my Goodwe Inverter showing 'PV Over Voltage'?
If your Goodwe Inverter displays 'PV Over Voltage', it means that too many PV modules are connected in series, causing the open-circuit voltage to exceed the operating voltage. Check whether the PV string input voltage is consistent with the value displayed on the LCD and meets the maximum input voltage requirements.
What causes 'Fac Fail' on a Goodwe GW15KT-DT?
If your Goodwe Inverter shows 'Fac Fail', it indicates that the utility grid frequency is out of the allowed range. Check whether other electrical devices under the same grid connection point is working normally, and whether the main supply is normal. Ensure the grid frequency is within the allowed range and that the phase sequence of the AC cables are connected correctly, and the neutral wire and PE cable are properly and firmly. If the fault happens occasionally, it may be due to instantaneous utility grid frequency change and does not need to be handled.
What does 'Vac Fail' mean on my Goodwe Inverter?
If your Goodwe Inverter shows 'Vac Fail', it means the utility grid voltage is out of the allowed range. Make sure that the grid voltage is within the allowed range. Also, ensure that the phase sequence of the AC cables are connected correctly, and the neutral wire and PE cable are properly and firmly.
What to do if my Goodwe GW15KT-DT Inverter displays 'Isolation Fail'?
If your Goodwe Inverter is showing an 'Isolation Fail' error, it could be due to: 1. A short circuit to the ground in the PV system. Check the PV input cables for any breaks. 2. A moist environment affecting the PV system's insulation. Ensure the module frames and metal bracket are securely grounded. 3. Also, check that the AC side is properly grounded.
How to fix an 'Over Temperature' error on my Goodwe Inverter?
If your Goodwe Inverter is showing an 'Over Temperature' error, there are a few things to check: 1. Ensure that the inverter has adequate ventilation and space for heat dissipation. 2. Verify that the ambient temperature is not too high. 3. Confirm that the fans are working correctly and are not blocked.
Outlines essential safety guidelines for operating the inverter.
Details safety measures specific to DC connections and components.
Covers safety considerations for AC connections and grid interface.
Specifies environmental and mounting conditions for safe installation.
Step-by-step guide for physically mounting the inverter to the support.
Essential safety guidelines to follow before making electrical connections.
Procedure for correctly connecting the protective earth (PE) cable.
Steps for connecting the DC input cables from PV modules to the inverter.
Instructions for connecting the AC output cable to the grid or load.
Pre-commissioning checklist of items to verify before powering on.
Procedure for safely shutting down the inverter before maintenance.
Methods for diagnosing and resolving common faults and errors.
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