Double check that you have the primary taps set correctly IE: set for 240V and NOT 110V

The mains fuse may not save you in this instance - especially a 5A - I would put a 1A or 2A in with all secondaries disconnected as that should prevent transformer damage.

Would the machine startup at all if the primary taps were set to 110V?
Wouldn't you get other faults aswell?