Quote Originally Posted by Robert Engel View Post
I used to leave mine on all the time. Everything was fine for 15+ years, until the pressure switch malfunctioned and the compressor wouldn't shut off.

That was a $600 mistake........
I did the same until one of my yellow coil air hoses popped off of the quick connects brass barb. Luckily I was in the shop at the time.
I did have to change clothes.