I agree......monitor the pressure readings(hi and lo) while it runs....if ok, and it shuts off, it's usually the pressure cycling switch on the accumulator....give it a light tap and see if the compressor starts.....if it doesn't, remove harness and jumper it while watching the lowside pressure....if it runs ok, and pressure is around 30 psi or above, replace the switch.....if pressure is getting down to 25 or below, the switch is cutting out to prevent a freeze up....