hi,we had new gas and electric combo fitted last year.cooker is controlled by single 32 amp switch supported by 32 amps mcb in C U .few days ago electric side of cooker went off.looked on mcb still on.opened the switch to have a look if any connection is gone loose.shocked to see live terminals in and out have melted in fact half of the switch around live connection terminals melted and burnt and did not trip mcb out.could it be if bad quality switch and melted under heat.is there any large plate 32 amp switch available without socket.