is it a pyrolytic self cleaner ?
hard to help as the details you require that give the actual model number are probably hidden by the door. can only suggest turning off at the isolation point and then on
remeber if pyroolytic and set to clean, it will lock the oven for a couple of hours as it gets intensely hot - 500 degrees - have u left it long enough to finish/cool ?
mr fixer, June 2008