bosch dishwasher

We have a problem that has just started after moving the dishwasher to a new location in the kitchen.During the rinse cycle water is forced out of the door.We have had the waste renewed, and have checked again for blockages but there are none.If you stop the machine the water is expelled without any problems.This only occures during a full 2 hour wash.The problem doesnt occur if a quick wash is used, at the moment.Since moving the machine we now have the waste connected to the sink trap, via a spigot, and wonder if maybe this is part of the problem, as before with the conventional arrangement, there wasnt any problems.
Any help much appreciated.Sylv.

water coming out through the door? Could it be that the feet need adjusting? If you have one of the front feet too high then you can actually see the cabinet goes out of square and does not line up with the (square) door.

If you have moved it from one part of the floor to another there may be a different unevenness.

Thanks for the prompt reply John.We hadnt thought of that but we will check feet for level and see if that is the problem.Thanks again.