How can I fix my indesit idl40 dishwasher?

I kept finding big puddles on my kitchen floor a couple of days after using my dishwasher , eventually I discovered that the bottom of the washer was full of water and leaking out , I've cleared all the water out with a cup and dried it and did not use it but after a couple of days it was full of water again so I've pulled it out and turned the tap off on the pipe which has slowed it down but now after 4 days it is full of water again !! Very confused as to where the water is coming from ?