Hotpoint Aquarius Dishwasher, poor cleaning

[Diyisfun]

Having had Hotpoint dishwashers for about 20 years & been satisfied with them. I bought a Hotpoint DWF50. The dishes maybe all come out clean once a week, cutlery always dirty. The filters are cleaned after each wash, the salt setting has been changed umpteam times, we have used tablets & liquid.
Anyone got any ideas (except for using the sink).

 

[imho]

I have a Miele dishwasher that was just the same as yours nothing was coming out clean enough, i got the Miele guy out and he adjusted it so it fills up with more water ,maybe look in your instruction book and see if you can do that .