Ingersoll Rand Air Compressor machine.

We are having serious issue with our Ingersoll Rand Air Compressor machine. After delivery the required pressure the machine goes off, when the pressure is low,it doesn't come up on Auto. What could be the likely cause.
 
Compressor have cooling time to save energy and to stop frequent motor start/stop. You can disable that setting. Apart from that check the discharge pressure switch/transmitter which is used for pressure sensing if it is actually sensing the low pressure or not.
 
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