Pressure Switch Chatter

[oink]

Maybe the switch got out of adjustment somehow. Take off the cover. It should tell you how to adjust the cut in/out on the underside of the cover. It's not hard but you will need to be able to see a pressure gauge to do it. All you need besides a gauge is the proper size nut driver. Just don't electrocute yourself. An some of them one nut will control both the cut in/out and the other will just adjust one. So you have to set the one that controls both first and then the other. You can change a 20/40 into a 40/60 or a 15/50 or whatever floats yer boat.