Solaredge lights - what do they mean

Jordan Barry
Mar 22
2 min read

The lights on your SolarEdge inverter are like a dashboard for your home’s energy production. Most modern SolarEdge models (especially the HD-Wave "SetApp" versions without a screen) use three simple LEDs to tell you everything you need to know.

If you’ve ever glanced at your inverter and wondered if those blinking lights mean "All Systems Go" or "Call the Electrician," here is your quick-reference guide.

The Big Three: What Each Color Means

At a glance, you’ll see three colors: Green, Blue, and Red. Under normal, sunny conditions, your goal is a Solid Greenand Solid Blue light.

1. The Green Light (Production)

This is the most important light. It tells you if your panels are actually making electricity.

Solid Green: Everything is working perfectly. Your system is producing power.
Blinking Green: The inverter is connected to the grid, but it isn’t producing power yet. You’ll see this early in the morning during "wake-up" or in the evening when the sun is too low.
Off: No power is being produced. This is normal at night. If it’s high noon and this light is off, check your breakers.

2. The Blue Light (Communication)

This light tells you if your inverter is "talking" to the SolarEdge monitoring servers so you can see your data in the app.

Solid Blue: Your inverter is successfully connected to the internet and sending data.
Blinking Blue: The system is trying to connect or is in the middle of a firmware update.
Off: There is no communication. Your system is likely still producing power (check the Green light!), but you won't see updated stats on your phone until the connection is restored.
If your system is not communicating, you might be able to reconnect it by yourself. You do not need to pay for $49 annual cell coverage. You can hook it up to your wifi.

3. The Red Light (Fault/Error)

This is the "Check Engine" light of your solar system.

Solid Red: A system error has occurred. This could be a "Ground Fault" or an internal hardware issue.
Blinking Red: The system is usually in a start-up or shut-down sequence. If it blinks indefinitely, it may be struggling to clear a minor error.

Common Scenarios Homeowners Face

What You See	What it Means	Action Needed
Solid Green + Solid Blue	Perfect Operation	None! Pour a glass of lemonade and enjoy the sun.
Blinking Green + Solid Blue	Standby Mode	Normal at dawn/dusk or if the grid is unstable.
Solid Green + No Blue	Producing but "Blind"	Your internet might be down. Check your Wi-Fi or Ethernet cable.
Solid Red	System Fault	Check your SolarEdge app for a specific error code, then call your installer.
All Lights Off	System Powered Down	Check if your AC solar breaker or the DC disconnect switch has been flipped.