Omi doesn’t start

A friendly hello to your round. I have a problem with my omi again. On Tuesday on the way to work quickly still filled. Omi jumped well after about 500 m the omi goes out and did not jump on. On the test valve there was no pressure anymore. So new pump bought and changed. Nothing happens relays changed without success,Relais bridged pump runs. I now no longer know any advice. What can I do anymore ?????????? Thank you already in advance.