Had same problem on t2 and was poor eos spacing
+1
Could be a coil diode as well. Measure the resistance of both coils. If the fuse blows straight away, is will be a diode or a short in the winding. If it blows the fuse after a few games, you should smell the coil - or at least check if the coil is hot (careful with this). If it is hot, then it will be EOS spacing, or a wire has fallen off the EOS.