hi, is the oven old or new ?, new ovens are normally on 13 amp plug ,old ovens have 230-40 volts direct supply via 32 amp breaker in main fuse board, if its under top oven ,2 screws under front door to remove b4 pulling out of carcass. u may have broken wire from power to inside cooker somewhere. make sure cooker is switched off at fuse board before investigating. hope this helps . cheers!
marti
January 2011