Re: Hotpoint Oven BD81S Flashing +Indesit WIL133 Washer
TBH one of the first ports of call for unusual faults should be the heater, insulation faults can give all sorts of problems, an O/C heater will cause it to sit there all day washing.
You should get error codes with most faults but an O/C heater will not give one.
PS.
It might be better to put your oven question in a separate post to avoid confusion. 😉
It could however just be a faulty flourescent tube or choke, no fault codes on these basic machines.
Jim.