Thanks Dave for your thoughts. So it sounds like the top light only works with the electric grill and not the gas oven by design, rather than being a fault. Pretty poor in my opinion, and sounds like a cost saving decision by Zanussi designers rather than the “energy efficiency” reason they gave me. Not a great example of the “appliance of science”, but looks like I am stuck with it. Thanks again for looking into this for me. Regards, Mike