Peter,
I know its not much help but I have the same problem...its never been totally satisfactory and seems tc be much hotter at the top than the middle....I am going to try contacting Indesit and making a fuss cos I consider it dangerous even though like you its now just over a year old....suggest you complain too the numbers are on the inside of the door frame on mine if you don't have them please let me know..
Martin
Martin
September 2006