Fronius IG 20 Start Up problem State 514 error

  • Hello dear solar friends,

    After two years of waiting finally I could install my secondhand Fronius IG 20 solar inverter. Two years a go it works but now I will not start up and the state massage is on ps00 nothing but ps01 last state massage is 514.

    There is a message about the second power stage and ENS.

    Is there a way too solve this problem? WD40 on every connection the solution?

    Thank you all for your interest en time to read my topic!