How can I fix my Sandstrom dishwasher?

Hi! I have no idea what to do.. My dishwasher from Sandstrom/Sandstrøm wont drain the water, and the only way I can make it start again, is to manually drain it!
I've just changed the flowmeter, because of the E1-errorcode, and I thougt everything was fine - but suddently it stopped, and errorcode E4 came up?!

I tilted the machine a bit backwards, and it went on again.. But now it wont drain! And I cant start it again - probably needs to drain it manually first?!

Can anybody help me please?