My name is ***** ***** will assist with your query today.
The two most likely causes are either the function selection switch has failed so when you set it to oven its not sending power to the heating circuit. The other potential fault will be with the thermostat, so it thinks the oven is already at the required temp.
Can you hear a click when you set set the temperature gauge to 200 degrees for example, and another click when you set it to zero?
The neutral would normal be shared with all the elements, where does the neutral go to that
There arent any fuses in the circuit, so I would agree with you its most likely to be a PCB fault.
Have you performed an continuity check to make sure the cable hasnt failed?
No problem Rik,
Will await to hear back from you
Hotpoint boards often require a hotpoint engineer to come to site to programme them, normally you can buy them pre-programmed for an extra £20.
Have you asked the seller if they offer one pre-programmed, I dont fancy your chances doing it yourself, as unlike Zanussi where you can programme them by going into an engineering manual, my understanding is Hotpoint need a specific smart card.