What do the lights on my inverter mean?

solar inverter board

There are 3 things to keep in mind to make sure your inverter is functioning:

1. Is there currently sunlight on your panels?

If it is nighttime, storming, or if the panels are covered in snow, your inverter is not going to provide reliable information. Check back when there is sunlight on the panels, and they are clear of snow.

2. Are there numbers and other information being displayed on the screen?

If so, your inverter is humming along and producing electricity.

3. What are the lights telling you?

Green = Good

Blinking Green = Waiting, Low Light Outside

No Color = No light on panels (night time, snow, storm)
If it is day time and your system is not covered in snow, confirm that all of the switches are on:

  • AC disconnect (outside by the meter/pole/inverter)
  • DC disconnect (under inverter)
  • Solar Breaker (in main breaker panel, sticker says PV or SOLAR [won’t exist if a line-side tap])

Red/Orange/Yellow or ERROR CODE = Call us at 802-882-8685 or send us a message.


If your inverter is NOT functioning:
Get in touch and someone from our amazing Customer Support team can troubleshoot with you. Together we can determine if a service visit is necessary. Chances are, if we fix your inverter – your monitoring function will follow.

If your inverter IS functioning:
More than likely there is just a small glitch in the monitoring. Give it 3-4 days to resolve itself. Monitoring does NOT affect production. You’re still up and running and being credited by your utility.
powerline-adapter2powerline-adapter

If you have a Powerline Adaptor (aka PLC) like the ones pictured here, please plug and unplug the Adaptor. The PLC should have 3 green flashing lights. If they are solid or not lit, the Adaptor may not be working properly.

If plugging or unplugging doesn’t work, or you do not have PLCs, give us a call at at 802-882-8685.


Inverter Specifics


Inverters take the DC current that solar panels produce and invert it to AC current making the power usable in your home and on the grid. The types of inverters currently and previously installed by SunCommon are: SolarEdge, Fronius, SMA, and Aurora PV1 (Power One). The latter three inverters may be branded by SunPower.

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