SolarEdge – Error Code 113

SolarEdge – Error Code 113

Is your SolarEdge Solar Inverter showing up with Error Code 113 on the screen?

What is a SolarEdge Error Code 113?

The Error Code 113 on your SolarEdge Solar Inverter indicates an issue with an AC voltage surge. This problem can arise from various factors related to the AC connection to your inverter, including the setup for your specific country, potential large surge sources or irregular loads near your site, and the appropriateness of the output wire size for the distance between your inverter and the grid connection point.

Recommended solution/fix steps

To fix this issue, you should first check the AC connection to your inverter to ensure it’s secure and correctly configured. Next, ensure that the inverter settings are correctly set for your country. This is crucial as different countries have different electrical standards and grid specifications. It’s also wise to consult with your grid operator to check if there are any large surge sources or irregular loads close to your location that might be causing the surge. Additionally, assess the size of the output wire connecting the inverter to the grid. If the wire is too small for the distance, it may be necessary to use a larger gauge wire to ensure stability and reduce the risk of surges. Lastly, you might want to refer to the AC Wiring Application Note for more detailed guidance on managing your inverter’s AC wiring in the context of surge issues.

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 SolarEdge 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.

SolarEdge Maintenance

Regular maintenance ensures a long operating life and optimal efficiency of the entire PV plant. Risk of inverter damage or personal injury due to incorrect service! Always keep in mind that the inverter is powered by dual sources: PV strings and utility grid.

Before any service work, observe the following procedure:

• Disconnect the AC circuit breaker and then set the DC load-break switch if the inverter to OFF;
• Wait at least 10 minutes for inner capacitors to discharge completely;
• Verify that there is no voltage or current before pulling any connector.

Maintenance Items include:

• If the inverter is dirty, clean the enclosure, the enclosure lid, the type label and the LEDs using only clean water and a cloth.
• Ensure that the inverter is free of dust, foliage and other dirt.
• At least once a year, open the fan screen and clean the accumulated dust using a brush.