hello frank-I had this problem.look where the hinges are & on the part attached to the actual oven there is a flip up type hinge cover.put a knife edge under the little ridge & flick up.both sets of hinges of course.when flaps are in the up position-ease out the door-be careful because it is very heavy . then the actual pieces of the door just slide out of their various housings.wash with warm soapy water & rinse with clean water & sponge.dry thoroughly before putting back together again-making sure as you go along that you are not leaving finger marks becsause they really stand out on the clean glass.when door back in one piece, just reverse the order of taking out to reinsert the door.once oven door is back in its hinge housing-slightly lift the door as if to close & the little flaps should automatically snap shut over the hinge.good luck.
ronnie
ps.do all this with oven switched off at the main of course to be safe.
ronnie, January 2008