Hi I have a slimline Beko dishwasher that just runs and runs and doesn't fill up with water. I pulled it out from the wall and checked the pipe for blockages and pushed it back in and it did start filling up but after a short 10min wash it drained away and just made a humming noise. It ocasionally fills up when left for a couple of days but never does a full cycle, does any one know what could be the problem.