Water from underneath !!?

ignis adl 347 leaking from underneath and damaged flooring. Removed metal cover from base and lots of water stains on it. Cold supply and outlet hose are not leaking. Mounted the dishwasher on a wooden frame above floor and plumbed in temporarily . Then ran it twice. Was able to lay underneath and look at all parts with a torch. No sign of any water from anywhere . Any ideas, don't want to reinstall unless I am sure, it is a fully integrated unit .