• Energy bill higher than usual?

• Installer gone broke?

• Out of manufacturer’s warranty by just a few months?

Fronius inverters

are made in Austria but services Australia. Good quality inverter with a local service agent. Although considered more expensive than other inverter options, Fronius have a quality rating of 8.6/10 and a service rating of 9.0/10 (according to cleanenergyreviews.com Have a great reputation.

• If your Fronius IG 15 Solar Inverter screen is blank, with nothing on the display screen and no lights on, then there is a problem with one or more of the following:

• DC wiring on the roof or between the roof and the inverter
• DC isolator on the roof or at the inverter
• DC plugs underneath the inverter
• Solar Panels or Solar Inverter

Trouble Shooting Tips

• Below are some suggested solutions for your Fronius IG 15 Solar Inverter Blank Screen problem:

• Ensure that the solar DC isolator, located beside the inverter, is turned on
• Ensure that the DC plugs, located underneath the inverter, are connected
• Ensure that the DC plugs are not damaged

Please note that these are general tips only and are based on our current and past experience and therefore, not specific to your solar inverter problem. What we usually find is people trying these troubleshooting tips and if these fail, they give us a call and we can perform diagnostic tests.


What we usually find is people trying these troubleshooting tips and if these fail, they give us a call and we can perform diagnostic tests and provide a solution.

• 50% of the time it’s a quick easy fix for any solar tech…

• Error messages and fault codes that are due to an external fault elsewhere in the solar system.
• The solar system is tricking the inverter into thinking it has that error or fault.
• External faults are relatively easy to find and repair. Once fault is repaired, the inverter is back online.

• Other 50% of the time

• There is a fault, which requires more diagnostic type of testing to locate the fault. Out of these about 1 in 4 can be solved onsite. Things like a dodgy install or water damage somewhere.
• The rest of the time it’s the inverter that’s the problem. 1 out of every 2 times the inverter can be sent away for repairs or we can organise those repairs under warranty with the manufacturer, and….
• The rest of the time the inverter was of low quality and either not fixable of not good value to fix. If this is the case we would quote on an inverter with similar specs to replace it with. Getting your system back online fast with high quality parts.
• In the worst case scenario, rare ground leakage faults are very difficult to find and fix but we have also had experience locating these as well.