Ah right ok, just wondered cos D&R security is my sisters and her fiance's LTD company

Shouldn't be too hard to find the fault with the roof pump, im not too sure if they have fuses for the main pump feed or not, might me a maxi fuse on the fuse holder on the battery + terminal. Does the power surge when you try and operate the roof? If it does then i would say the motor has ceased up