Axminster Seig SX2 Mill

So I purchased a 2nd hand mill that when I collected it the speed controller was the issue ? subsequently I got it home and the controller works ? well sort of but the big issue is that the machine cuts out almost straight away, sometimes it will run for a short time. This is all under no load conditions. Can anyone shed any light on the issue and possible an answer. I was going to get it serviced but need to wait for the Axminster engineer to be near me to make it cost effective.