This is the third new dishwasher we've had this week! All 3 have done the same thing! The timer doesn't count down through all the cycles and it doesn't seem to be getting hot. We've read the installation and operation instructions and can't figure out what we could be doing wrong!? It's a smeg dwa157x They turn on, water pumps in, timer stops counting, the machine keeps running, cycle never ends, water doesn't get hot.