We have here an H147MB, Nr. 00/58906916, type MW6003 which keeps blowing the internal 8 amp fuse. All the high voltage side has been changed but it still blows the fuse. When a new fuse is fitted, and you switch it onto ‘high’, you can hear the relay jumping and then it blows the fuse immediately. This only happens on microwave, not on the convection side.
Your help would be much appreciated as we’re a bit stumped.