Fronius inverter STATE 516 fault code By Simon Rogers|2024-08-22T15:38:56+10:00March 7th, 2016|All posts, Solar Inverter Fault & Error Messages, Solar power, Solar Power Inverters, Videos| Fronius solar inverter displaying a STATE 516 message? As a Fronius service partner one of the most common error messages we see on Fronius IG 40 Read More