Hello' I have a PANASONIC NNE-2995 microwave which stopped working suddenly... my wife was heating up something and all of a sudden no light ...no power... Initially I've thought that the 13 amp fuse blew up but I've tested it and it's absolutely fine... I don't know what else to try or to look at... Please give me some hints to at least try something before I decide to replace it... Many thanks.