As a Fronius service partner we’ve seen a number of Fronius IG series inverters with STATE 304 errors. Fronius describe this issue as “Heat sink temperature on the DC-DC board too high”, or in simple terms the inverter is over heating. Fronius list the following as possible causes:<\/p>\n
In our experience at Gold Coast Solar Power Solutions as a Fronius Service Partner we have found that the usual cause of the STATE 304 error is not any of the above but rather it usually ends up being a failure of the internal 12V fan inside the inverter. The fans seem to start failing when the inverter is about 6 or 7 years old, and when the fan fails obviously it can no longer control the inverters internal temperature. <\/p>\n
If your Fronius inverter is still within the warranty period or even if your not sure (a 5 year warranty is standard) then you can call Fronius directly on 03 8340 2910 or if your near the Gold Coast or Brisbane you can contact us here<\/strong><\/a>. <\/p>\n
If your inverter is out of the warranty you have 2 options:<\/p>\n
Either way we can help, please complete the form above under the URGENT<\/strong><\/span> heading and we’ll assist you further.<\/p>\n
For more information on Fronius solar inverters including inverter datasheets, manuals, fault codes etc. click here.<\/strong><\/a><\/p>\n