the most likely cause is cable if you switch the vac on waggle cable about if it starts up it is a break somewhere in the inner cable you can attempt to disconnect and cut bad cable off but from past experience this method is not very successful you are better replacing cable cost, to purchase cable £12.95, to supply and fit £30 we are in lanarkshire scotland, feel free to e-mail jonsemple@talktalk.net
J.D.S. DOMESTICS, April 2007