Strange thing today, been welding for about 5mins when suddenly the wire stopped coming out, thought it had just jammed, looked over to the machine and no light on. Checked & replaced fuse Loud buzzing noise for a few seconds then cut out. Replaced another fuse and same thing. Its the same sort of noise the machine makes when welding but its not! Took the sides off but cant see anything (not that Im sure what Im looking for!) anyone any idears? Oh the machine is a BOC Migmaster 130 Turbo. Thanks in advance, Croft