Parker G1 - Troubleshooting

G1 - G9
16
6. Troubleshooting
Problem Indication Possible Cause Action Required
No power to unit
Power On indicator not
illuminated
Isolated at supply Check isolator & switch on
Power on switch in ‘OFF’
position
Check power on switch & switch on
Fuse blown Check fuse & replace
26 way connector disconnected Check and rectify
Power lead not connected Check lead connected & connect
Loose connection inside
generator
Consult domnick hunter Service
Dept.
Connected incorrect voltage
supply
Check rating plate voltage for
suitability
Reduced delivery
pressure
Outlet pressure gauges
Compressor failure (option 1
units only)
Check compressor is running,
consult domnick hunter Service
Dept.
Compressor over-heating due
to insufficient ventilation
Check ventilation clearance &
rectify
Leaking outlet pipe-work Check pipe-work & rectifier
Pressure regulator set low
Check pressure regulator setting &
reset
Service interval exceeded Check service timers and service
Internal Leak
Consult domnick hunter Service
Dept.
Leaking inlet pipe-work (option
0 units only)
Check pipe-work & rectify
Inlet pressure set low Check inlet pressure & increase
Inlet (option 0 units only) or
outlet pipe-work diameter too
small
Check pipe-work diameter &
replace
Demand greater than supply
capability
Check requirements against
original sizing data
Reduced purity Downstream monitoring Leaking outlet pipe-work Check pipe-work & rectify
Unsuitable pipe-work used on
outlet
Check pipe-work and replace
Generator recently brought
online
Check & allow at least 6-hours for
purity to be achieved
Inlet air supply IS08573.1 
2001 air quality class 2.-.1
(option 0 units only)
Check inlet air quality & rectify