GoodWe – Error Code 1

GoodWe Inverter Error Code 1

Is your GoodWe Solar Inverter showing up with Error Code 1 on the screen?

When a problem occurs, the red (fault) LED indicator on the front panel will light up and the LCD screen will display the type of fault.

When your GoodWe Solar Inverter shows an Error Code 1, it means that it has lost connection with the main electricity grid. This could happen if there’s a power cut in your area, or if the cable that connects the inverter to your home’s electrical system is unplugged, or the circuit breaker that controls the power to the inverter has been switched off.

To fix this issue, first, wait a bit to see if the power comes back on its own, as the inverter will fix itself once the grid power is back. If the power is on in your house but the inverter still shows the error, make sure the cable that connects the inverter to your electrical system is securely plugged in. Then, check your home’s electrical panel to ensure the circuit breaker for the inverter is turned on. If it’s off, flip it back on. If these steps don’t clear the error, there might be a more complex issue, and you may need to contact a professional for help.

Troubleshooting to try

• Check if your inverter is switched on
• Check if your DC isolator is turned on
• Check if all the light indicators are green
• Try rebooting the whole system

How to restart/reset/reboot your solar inverter?

Follow the inverter shut down procedure label which may be located on your inverter or the main switchboard of your house.

Typically, this procedure will be:

1. Turn off the AC “Solar Supply Main Switch” or “Inverter Main Switch” located on the main switchboard of the house.
2. Turn off the AC isolator at the inverter (if present)
3. Turn off the “PV array DC isolator”, located next to the inverter. The screen should go blank, and the lights should go off.  Leave it like this for five minutes or so, and then switch it back on.
4. Wait a few minutes…
5. Turn the inverter back in reverse order (DC isolator first, AC second).
6. DC On first. It is very important that you restart by switching the DC isolator on first, as you shouldn’t switch DC under load (ie with the AC on), as the isolator could arc.
7. AC On next. Put the AC switch (solar supply main switch) back on, and then wait.  All inverters take at least one minute to restart, and you may see the lights flashing while the inverter does internal testing.  There will also be a variety of messages on the screen again as it tests.  This is quite normal.

GoodWe Maintenance

Regular maintenance ensures a long operating life and optimal efficiency of the entire PV plant. Caution: Before maintenance, please disconnect the AC breaker first and then disconnect DC breaker. Wait five minutes until the residual voltage has been released.

Maintenance Items include:

• System Clean (Once six to twelve months) – Check the heat sink, air intake, and air outlet for foreign matter or dust
• DC Switch (Once a year) – Turn the DC switch on and off ten consecutive times to make sure that it is working properly
• Electrical Connection (Once six to twelve months) – Check whether the cables are securely connected. Check whether the cables are broken or whether there is any exposed copper core.
• Sealing (Once a year) – Check whether all the terminals and ports are properly sealed. Reseal the cable hole if it is not sealed or too big.