pressure switch works for a few cycles and then quits
pressure switch works for a few cycles and then quits.
it will cut in at 80psi then cut out at 120psi for 5-10 cycles.
thenit falls below cut in psi or cuts out at a lower pressure. It repeats this until the pressure range is 40-80 and all the machines in the shop stop
Shawn, from what you have described, it's time for a new pressure switch.