Zanussi Dishwasher DX6453
If you get called out to one of these and the fault is no heat but it goes through the program.
The first one I went to took me hours and two visits before I found it.
Take a look at the programmer/PCB you will have to remove it from its plastic housing. I have been to three of these all the same fault blown joint on PCB, (heater relay I think) I have repaired two of these the other I changed the board.
Bernie