So.. about a month ago, I noticed my sink was draining slower than usual. I used some Oneshot style stuff which worked.. for about 3 weeks.. and then the same again, water building up in the sink. Not as bad as before, but anyway.. also, water stopped going into the dishwasher at this point. I did a test where I emptied a couple of buckets into the dishwasher and turned it on, which proved that it could send a bit of water back up into the sink, as normal, in that direction.. after a short while the dishwasher ran out of water and couldn't take in any more. I didn't want to use more of the Oneshot stuff for the sink, worried it may damage the pipes.. About six or seven years ago I had someone come and do drain jetting, which cleared everything well until now. I thought I should sort that out first and see if by chance it would solve the dishwasher problem in case these issues are somehow related, though doubted the connection. Miraculously after having the drain jetting done last week, the dishwasher worked again, though the propeller at the top had come off during the cycle (not something that's happened before). It worked a second time and the propeller came off again. I noticed that I hadn't secured it on tightly enough. Since putting it in again and making sure it is secure, the machine again has not been taking any water in. I have tried removing the propeller altogether to see if it would run then, but no change. Not really knowing how these machines work/the components etc.. I can't tell what the problem is. Something to do with the pump perhaps? Any suggestions welcome!