Motor cuts off before reaching 125 psi
Im guessing this is a recip (piston Compressor) Sounds like your pressure switch may have adjusted itself by vibration. Take the cover off the pressure switch, there should be 1 or 2 screws on the top, one adjusts the pressure, the other adjusts the differential pressure (There may just be one) turn the pressure screw in the direction of the +, you need to do trial and error on this, turn it 1/4 of a turn, then switch on, see what the pressure gets to, then switch off, drain some air off, then adjust as necessary until you get your required pressure. Hope that helps
