Could be loads of things based on the info given: Could be the suppressor (could be though hardly that common), possible heater coming on before it had filled (not common), motor even (not common, well not like that), or pump (not common on fill), valve melting (not common that one), pcboard perhaps (not that common, they usually just go pop or do nothing). More likely to be the door lock`s connector block/wires (door lock end) burning due to crappy terminal connections – someone was being a bit optimistic there!….some Indesit models were recalled due to this so go to the indesit website or google “indesit recalls”….. common problem – just google it; had a quick look for you. Your model is not mentioned but take that with a pinch of salt………could still be that problem, had it happen to many machines that are not on the list even with completely different door locks (it is not really the door lock that is the problem but the surface area, for the given current over time, of the connector block terminals..Best have a look yourself first.