Strangley, I did the same thing yesterday on a Creda cooker :rolls:
Turned out I had crossed the: Load A and the load B, The fault was, On twin grill the R/H element came on full power, But on single both came on half power i.e top oven mode. Hope this helps.
Try this very handy website, you will have seen tinyurl’s all over the place, you can use them as well. Just install the small tinyurl link into your browser then whenever you are viewing a page that you want to post a link to, click on tinyurl in the links, ( not as obvious in IE7 ) and it will copy a nice small, neat and tidy ‘tiny’ link to your clipboard. you can then paste that into e-mails, forums etc.