E15 error code on Bosch Dishwasher classix?

My problems started when i originally got a E10 coding, so saw some instructions on sorting that problem out.

Then after getting this problem resolved i now get error code reading E15, so again i looked here to try and sort out i wiggled it and tipped it to the front saw a small amount of water come out and thought ah everything is ok................. But alas no it isnt after putting all the the connections back on after again checking everything i put machine back on to receive the error Code E15.

This machine is really frustrating me and i have a good mind to put it outside for the scrap man to take it even though its only 7 months old.

I live in a soft water area.