Re: Dishwasher hotpoint ultima
Full serial number required from the rating plate stuck to the inside edge of the door.
Major changes to the modules on these, later ones fitted in the base have to be programmed with a smart card and card reader. Earlier models have the main pcb behind the facia, both prone to no heat faults.
You need to test the heater first, if that is OK then as long as there are no breaks in the wiring harness inside the door it’s odds on the module has failed. 😥