Generally the reason of low pressure air compressor units are the following:

1 pressure gauges fault

2 user pipe network leakage

3 pressure sensor fault

4 purge valve malfunction

5 pressure switch fault

The 6 air inlet valve failure, can not be completely open

7 of the actual consumption is greater than the output of gas turbine

8 pressure switch is set too low

9 pressure sensors or pressure meter input hose leaks

10, the minimum pressure valve stuck, cleaning, re adjusted or replaced with new parts