So I went to clean some classrooms last night at a local school. Got it all vacuumed and presprayed, went to grab the cimex to scrub it in and it made kind of a popping sound as it turned on and then nothing. Kind of like the sound when u would trip a breaker. Anybody ever have anything like this happen to them or any ideas of what it could be? Thankfully I had my CRB on the truck so I was able to scrub with that although I feel that the Cimex definitely would have done a better job.