Indesit DI62 dishwasher leak?

My dishwasher is leaking small amounts of water from the base of the door during its cycle. The insulation felt is very wet at the bottom of the door also. I have checked the door seals and they all seem to be fine. I have also cleaned them to make sure there is no food stuck. It doesnt happen everytime. Does anyone have any clues where I might start to look to resolve the problem.

cheers