Have had this for 6 months & worked flawlessly-Recently fill one of my 45 min. tanks & left cooler/fan running after shutoff for cooldown- went to charge my other bottle & compressor won't come on(fan/cooler is working) the compressor switch is not lit. Reset switch did not pop & motor can be manually turned , so not frozen. Swapped fuses & no change. The switch is my guess, so ordered another from PA. to check. I have tried to reach Air Venturi/Pa tech support for 3 days with no return call. Any suggestions at this point or does someone have electronic schematic on this?