Is your vac plugged in or hardwired? If it is a plug in type, try plugging something else in the socket and see if it is getting power. There may be some sort of push in fuse/circuit breaker on the vacuum itself. Do you know what the make and model number of it is? That would help us find a manual and trouble shoot.
__________________ There is madness to my methods
2015 Coleman CM16FBS(traded) 2016 Concord 300DS
2015 Ford Fusion Hybrid following along