GE H301 Series Operating Manual page 122

Symptoms
Possible cause
Discharge pressure
above normal
Discharge pressure
below normal
Operating speed less
than normal
Inlet pressure below
normal
Intake clogged
Dirty valves
Valves worn or broken
Valves not seated in
cylinder
Incorrect valve
Valve incorrectly
assembled
Gaskets leak
System leakage
excessive
Piston rings worn,
stuck or broken
Cylinder (piston) worn
or scored
112 | Chapter 9: Troubleshooting