Using it today when it started cutting out, after fiddling about with the power lead where it enters the handle it would come back on so it appeared to be a loose wire.
Checking it this afternoon with the case off it was still the same, i.e. working with the wire held in one position but not another.
Checked and tightened the power lead wires onto the circuit board, nothing.
Now I couldn't get any power at all going into it. Took off the power lead, snipped a bit off and strimmed the wires to put back on. Still nothing.
Took off the circuit board and the power button switches to check and they appear okay.
Any ideas what it might be? And yes I've checked the fuse in the plug.
I know it would be easier to take it somewhere but just had 2 expensive repairs in the last week on different things and wanted to avoid another.