It had been working on/off on it's own for a while. The fan speed worked ok but at times it would stop blowing for a few minutes then start blowing again. The A/C itself was also cutting in/out (would blow cold, not blow cold, back to blowing cold). I put up with it like that for over a year as i don't really drive the truck all that much but now it wont even turn on. Assuming the AC relay and fuse(s) are good and the controller is getting power, any suggestions before I take a closer look this week? Thanks.