Hotpoint FDW60 problems...first heating unit now over filling?

[Sam sean]

Hi all, I recently started googling what was wrong with my fdw60 dishwasher. Just one fine day lights 4 and 6 started flashing and it wouldnt work anymore. Thanks to a super thread where someone else had the same problem I found that the problem was with the heating unit. I bought a couple of new hose clamps and a heating unit online for about £30 and set about installing it. Everything went well and the dishwasher started off fine but 15 mins later it stopped yet again and this time light 3 (eco light) started flashing. I read up online and it seemed the problem was the washer overfilling. So first I tipped the water out and then realised I may have connected the float switch wires the wrong way around when I was assembling the machine again. So I switched it around and restarted the machine. For 45 mins it worked fine and I was thinking id finally fixed it when it stopped again and is flashing light 3 again....I dont know anymore what the problem could me and really need advice and help about this. I'm hoping one of you awesome ppl have a better idea of what's going on. Thanks