Axminster lathe 205 tripping out

Hi my Axminster lathe 205w

Today tripped out the power every time I switched it on was halfway through making a bowl at the time it’s only a year old any evidence would be appreciated thank you

Thats exactly the same as my 205 lathe, it trips the house 16amp RCD. Checked the motor bushes and all ok, powered up the controller without the motor plugged in and no trips on the RCD. Any hints of how to test or possibly problem, controller or motor?