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Kyle HillSep 12, 2025
How to fix Button Fault on a Goodwe GW1000-NS?
- KKenneth RamirezSep 12, 2025
If the buttons on your Goodwe Inverter aren't working, remove the cover and reconnect the ribbon cable between the screen and the PCB.
How to fix Button Fault on a Goodwe GW1000-NS?
If the buttons on your Goodwe Inverter aren't working, remove the cover and reconnect the ribbon cable between the screen and the PCB.
What causes Over Temperature error on Goodwe Inverter and how to fix it?
The 'Over Temperature' error on your Goodwe Inverter indicates that the internal temperature is higher than normal. Try to decrease the ambient temperature or move the inverter to a cooler location.
Why does my Goodwe GW1000-NS Inverter show Utility Loss?
A 'Utility Loss' message on your Goodwe Inverter indicates a disconnection from the power grid. Check if the power grid is connected to the cable and verify the availability of the power grid.
What to do if my Goodwe GW1000-NS displays PV Over Voltage?
If your Goodwe Inverter is showing a 'PV Over Voltage' error, check if the PV open circuit voltage is higher than or too close to the maximum input voltage.
What does Fac Failure mean on Goodwe GW1000-NS and how can I fix it?
A 'Fac Failure' on your Goodwe inverter means that the grid frequency is out of the acceptable range. To troubleshoot: * Ensure the AC switch is in the ‘ON’ position to confirm the inverter is connected to the grid. * Verify that the safety country setting in the inverter is correct. Change it if necessary. * Check the ‘Fac’ value displayed on the screen. If it's outside the regulation limits, widen the frequency range using the ‘Calibrate Tool’.
Why is my Goodwe Inverter showing a Blank Screen?
If your Goodwe Inverter screen is blank when the DC is on, try these steps: * Measure the DC voltage to ensure it's higher than the start-up voltage. * Check if the PV string poles are reversed. * Inspect the DC and AC connectors for any damage. * Disconnect both AC and DC power from the inverter, wait 15 minutes, and then reconnect.
How to fix Relay Check Failure on a Goodwe GW1000-NS?
If your Goodwe inverter is showing a Relay Check Failure, which indicates an output relay fault, try this: Switch on both the AC and DC power to the inverter. Listen carefully during the inverter's startup check. If you don't hear a relay clicking sound, contact GoodWe local service center.
What does ISO Failure mean on my Goodwe GW1000-NS Inverter and how to fix it?
An ISO Failure on your Goodwe inverter indicates that the ground insulation impedance is too low. Here’s how to address it: * If the fault occurs at dawn, dusk, or during rainy days, it might be a temporary issue and can be ignored. * Measure the impedance of PV+ and PV- to ground. The values should be higher than 2MΩ. If the impedance is too low, inspect the insulation or rewire the PV connection. * Measure the impedance of N to ground; it should be close to zero. If not, check the AC wiring. * Ensure that the inverter's firmware is up to date. If not, update it to the latest version.
What to do if my Goodwe GW1000-NS Inverter shows Utility Loss?
If your Goodwe Inverter indicates a Utility Loss, it means the inverter isn't detecting a grid connection. Here's what you should do: * Ensure the AC switch is in the ‘ON’ position. If it is, use a multimeter to check the voltage at the AC connector and the main switchboard wiring to confirm the grid is active. * Verify that the L, N, and PE wires are connected to the correct pins. Adjust the wiring if necessary. * Check the ‘Vac’ value displayed on the screen against the actual grid voltage. If the values are outside the regulation limits, contact your electricity company. * Turn off both the AC and DC power to the inverter, wait 5 minutes, and then measure the impedance between L & N to ground. If the values are less than 200KΩ, contact the GoodWe local service center.
Why is my Goodwe GW1000-NS displaying a Vac Failure?
A 'Vac Failure' on your Goodwe inverter indicates that the grid voltage is out of the acceptable range. To resolve this: 1. Measure the voltage when the inverter displays ‘Vac Failure’. If it's outside the regulated limits, contact your electricity company. 2. Measure the voltage between N and PE on the inner AC side of the inverter; it should be less than 1V. If it's higher, check the AC wiring. 3. Compare the ‘Vac’ value on the inverter screen with the voltage measured at the switchboard. If they don't match, contact a GoodWe service center.
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