For a while now our Smeg Double Oven (70cm range) has been tripping the RCD on our house electric system. It would trip when we turned the bottom (fan) oven OFF. It would then trip again when pressing the buttons to reset the electronic clock.
I have done some preliminary investigation and the above seemed not to happen when the main oven fan was disconnected. (but I have had to reconnect this now).
I have also cleaned a very dirty thermo switch (I think that is what it is anyway) that is screwed to the frame of the oven at the back.
Could these weird symptons just be due to a faulty oven fan?
Any help appreciated.
Stuart