By Alex Robinson 
Solar energy systems are a smart and eco-friendly choice. But like any machine, they can face issues sometimes. One of the key parts of a solar power system is the SolarEdge inverter. It helps turn solar power into electricity that your home can use.
When problems arise, you don’t always need a technician right away. In this guide, we’ll break down everything you need to know about SolarEdge inverter troubleshooting in a way that’s easy to understand and follow.
What is a SolarEdge Inverter?
The SolarEdge inverter is the heart of your solar energy system. It works with power optimizers to convert DC (direct current) electricity from your panels into AC (alternating current) power for your home.
Key Features:
| Feature | Description |
| Power Optimizers | Help panels work better, even in shade |
| Monitoring System | Lets you track your solar energy in real-time |
| Smart Energy Capable | Can connect with batteries and EV chargers |
| Remote Troubleshooting | Fixes many problems online without technician |
Common Signs of Inverter Issues
Before jumping into SolarEdge inverter troubleshooting, look out for these signs that show something might be wrong:
- Red or orange LED lights on the inverter
- No power output from your system
- Error messages on the inverter display or monitoring app
- Internet disconnection
- Strange noises or heating
Knowing these early signs helps you fix small issues before they turn big.
SolarEdge Inverter Troubleshooting Steps
Below are the top steps to fix basic issues yourself. These tips are useful and safe if followed properly.
1. Check the Inverter Display or LED Lights
SolarEdge inverters come with indicator lights that show system health:
| Light Color | Meaning |
| Green | System working normally |
| Orange | Warning – needs attention |
| Red | Error – system not working |
| No Light | No power or inverter turned off |
If you see orange or red lights, it’s time for SolarEdge inverter troubleshooting.
2. Reboot the Solar Inverter Safely
Rebooting often fixes common issues. Follow these easy steps:
- Turn off the inverter’s AC disconnect switch (usually near your main panel).
- Turn off the DC disconnect or PV disconnect (on or near the inverter).
- Wait for 5 minutes.
- Turn the DC disconnect back on.
- Turn the AC disconnect back on.
Wait for 2-3 minutes. Your inverter should restart and show green lights if everything is okay.
3. Check Your SolarEdge Monitoring App
The SolarEdge app shows detailed error codes and inverter performance. Log in and look for alerts such as:
- Arc fault
- Communication error
- Power production low
These clues can help guide your next move.
- Confirm Internet Connection
Many problems show up due to lost internet connection. Check these:
- Is your router working?
- Is the inverter still connected via Wi-Fi or Ethernet?
- Restart your router and reconnect if needed.
If the inverter loses internet, you won’t get system updates or monitoring data.
5. Look for Weather or Grid Issues
Storms or blackouts can trigger inverter faults. After power returns, your inverter may need a manual restart. Always wait 5–10 minutes after a power cut before restarting.
6. Understand Common Error Codes
Here’s a helpful table with error codes you might see:
| Error Code | What It Means | What You Can Do |
| 18x | Isolation fault | Call a technician |
| 25x | Arc fault detected | Shut down and contact support |
| 33x | AC voltage error | Check grid voltage; wait or call utility |
| 43x | DC over-voltage | Needs professional help |
| 65x | No communication with optimizer | Check wires or contact installer |
⚠️ Tip: If unsure, don’t guess. Use the SolarEdge support portal or contact your installer.
Advanced Troubleshooting (For Professionals Only)
Some tasks should only be handled by licensed technicians. These include:
- Replacing inverters or optimizers
- Fixing wiring or grounding faults
- Handling arc faults
- Firmware upgrades
When to Call a Solar Technician
If the system still doesn’t work after these steps, call your installer or SolarEdge support. Don’t attempt deep repairs on your own, especially for issues like:
- Burning smells
- Repeating error codes
- Damaged wires
- Water inside the inverter
Tips to Prevent Future Problems
Maintaining your solar system helps prevent issues.
Checklist to Keep Your Inverter Healthy:
- Keep the inverter clean and dry
- Check for pests or insects near wiring
- Monitor energy regularly with the app
- Clean solar panels every 6–12 months
- Schedule annual system checkups
Subheading: SolarEdge Inverter Troubleshooting Tips
To make things easy, here’s a quick troubleshooting guide:
| Issue | Quick Fix |
| Inverter not turning on | Check AC/DC switches, reboot system |
| Red error light | Use monitoring app, note error code |
| Low power generation | Check for shading, dirt, or optimizer |
| App not updating | Check Wi-Fi, restart router |
| Strange inverter noise | Power off and call technician |
FAQs: SolarEdge Inverter Troubleshooting
1. What should I do if my SolarEdge inverter shows a red light?
A red light on your SolarEdge inverter means there’s an error stopping it from working. First, check the inverter display or use the monitoring app to find the exact error code. Most of the time, a red light could mean a power issue, arc fault, or system communication failure. Try rebooting the inverter by turning off the AC and DC switches, waiting 5 minutes, then turning them back on. If the red light returns or you see a repeating error code, it’s best to contact your solar installer or a certified SolarEdge technician. Red lights can also be triggered by grid voltage problems or internal faults, which need professional tools to fix. Never try to open the inverter yourself, as it could be dangerous. Keeping the inverter clean and dry, and monitoring system performance regularly can help reduce the chances of this happening in the future.
2. How can I reset my SolarEdge inverter safely?
Resetting your SolarEdge inverter can fix simple issues like communication problems or low production. First, turn off the AC disconnect switch (usually near your main electric panel). Then, switch off the DC disconnect (either a knob or breaker on the inverter itself). Wait about 5 minutes to let the system fully power down. Now, turn the DC switch back on, followed by the AC switch. The inverter will take a few minutes to reboot. If it comes back with a green light, the system is working. If not, check the monitoring app for updates or call your installer. Resetting the inverter once in a while is safe, but if you need to do it too often, there might be a deeper issue. Always reset safely and during the daytime when solar power is being generated.
3. Why is my SolarEdge monitoring app not showing data?
If your SolarEdge app isn’t showing data, it could be due to a lost internet connection or system error. First, check your home Wi-Fi or Ethernet connection. Make sure your router is working and the inverter is still connected to it. You can try restarting your router and checking the inverter’s communication light. If the inverter is offline, your app won’t show new data. Also, check for any alerts or error messages inside the app itself. Sometimes the SolarEdge server might be down briefly, so wait a bit and try again. If it doesn’t fix itself after 24 hours, contact SolarEdge support or your installer. Regular data updates are key for tracking solar power and spotting problems early. Reconnect your system quickly to keep monitoring smooth.
4. What causes low power production in my SolarEdge system?
Several things can cause low power output in a SolarEdge system. Common reasons include dirty solar panels, shading from trees or buildings, cloudy weather, or faulty power optimizers. Check your panels for dirt, dust, or bird droppings and clean them if needed. Use the monitoring app to compare current production to past performance. If one or more panels show much lower output, the optimizer may need inspection. Also, check the inverter’s display or lights to ensure it’s working properly. Another reason could be electrical grid issues in your area that reduce your system’s output. If low power continues even on sunny days, contact your solar technician for a full inspection. Keeping panels clean and checking the app often can help you catch these issues early.
5. Is SolarEdge inverter troubleshooting safe to do on my own?
Basic troubleshooting like checking lights, using the app, or rebooting your inverter is safe and simple. Always follow the shutdown and restart steps exactly. However, deeper problems like wiring faults, arc faults, or damaged inverters should only be fixed by licensed professionals. Safety is key—these systems involve high voltage, and even one wrong move could be dangerous. If you ever see burnt smells, exposed wires, or constant errors, don’t try to fix it yourself. Keep your inverter area clean, dry, and well-ventilated, and perform simple checks regularly. The app is your best friend—it can help you spot problems early and avoid bigger issues. Safe troubleshooting is all about knowing your limits.
Final Thoughts
SolarEdge inverter troubleshooting doesn’t have to be scary. With a few simple checks and smart tips, you can fix many small problems yourself. Stay calm, use your monitoring tools, and always put safety first.