I've owned the Rupes 15ES Mark ii for almost 3 months and just yesterday it stopped working in the middle of a job. I had used it for about 40 min prior to it shutting off. I went to work the paint again and no response from the trigger. None. I tried 5 different outlets in case I'd blown a breaker. Verifying that I had power in the shop I set the machine aside as I believed I could've overheated it. After about an hour off cool off time I tried again... It still doesn't work. Help!!