Troubleshooting and fault rectification

Fault	Possible cause	Remedy
Outlet pressure too low	Process gas source empty	Check inlet pressure on the pressure regulator and change the process gas source if necessary
Vibration noises in the pressure regulator	Pressure regulator faulty	Replace pressure regulator
Pressure regulator frozen	Flow rate too high	Reduce flow rate or use gas preheater if possible
System pressure cannot be set to the desired value	Pressure regulator faulty	Replace pressure regulator
System pressure cannot be set to the desired value	System pressure outside the intended system pressure	Only operate the system at the intended range
Flow insufficient or fluctuating	Inlet pressure of the process gas too low	Increase inlet pressure
	Valve faulty	Replace faulty valve
	Filter loaded	Change filter
Relief valve, over-pressure valve, safety valve or burst disc are discharging gas	Impermissible pressure rise in the outlet pressure range	Close all valves and check pressure control panel
HPI valve cannot be opened or closed	Pneumatic pressure too low	Check pneumatic pressure
HPI valve cannot be opened or closed	Compressed air hose ripped	Replace compressed air hose out
Leak	Connection leaking	Flush pressure control panel clear and perform pressure test and leak test