I recently installed the Leviton decora PR180 in my hallway with a 3 pole setup. I followed the instructions as best as I could understand, but when turned on auto, the light comes on for 15 seconds, goes off, and within 5 seconds, goes back on. Did I wire it incorrectly, or is it defective? I'm good with singel pole stuff, but this just baffles me... help!! :eek: