Hello My name is Ian ~ I am not on the site constantly so please be patient whilst waiting for responses to you queries
OK I really need a great deal more to go on, it could be any number of things ~ does the droning/humming come from the top bottom middle? Is it a gas or electric as both gas and electric cookers are connected to the electric. Aren't you able to see the rating plate inside the door frame?
Hi Ian,The noise
is coming from the back I think. I will need to take a further look really as I can't be sure right now. The cooker is gas but is fan assisted as well. I will have to take a look for the rating plate when I get home and respond further then.
OK that is fine, I am here now for the rest of the evening, if you can get the model or product code that would be gret ~ some of them have two fans one to cool the electronics and one to circulate the hot air in the main oven. Just ping me on here when you have the information and we can take it from there ~ Ian