Kenwood Slimline Dishwasher - leaking but working (Bagslate Moor OL11)

When we unplugged it, it was working, but it is leaking from somewhere and I can't figure out where. It could be that the waste pipe is blocked as we high had a high ascent on it, and water is then finding it's way out. Could certainly be used for parts, just trying to prevent adding it to Rochdale's tip.