Sullair LS20T Operator's Manual And Parts List page 45

8.2 TROUBLESHOOTING GUIDE (CONTINUED)
SYMPTOM
EXCESSIVE COM-
PRESSOR LUBRI-
CANT CONSUMP-
TION
SUMP PRESSURE
RELIEF VALVE
OPENS REPEATEDLY
INTERSTAGE PRES-
SURE RELIEF VALVE
OPENS REPEATEDLY
PROBABLE CAUSE
Clogged Return Line or Orifice
Separator Elements Damaged or
Not Functioning Properly
Leak in the Lubrication System
Excessive Fluid Foaming
Fluid Level Too High
High Pressure Shutdown
Parameter is Out of Adjustment
Defective Pressure Relief Valve
Defective Pressure Transducer
Defective Minimum Pressure
Valve
High Separator Differential (dP1)
Defective Blowdown Valve
Defective Blowdown Solenoid
Valve
Plugged or Frozen Control Lines
Defective Discharge Check Valve
Defective Oil Stop Valve
Defective Pressure Relief Valve
TROUBLESHOOTING
REMEDY
Clean strainer (screen and o-ring replace-ment kit avail-
able).
Clean orifice.
Change separator elements.
Check all pipes, connections and components.
Drain fluid and change.
Drain excess fluid.
Readjust below pressure relief valve setting.
Replace pressure relief valve.
Recalibrate or replace.
Repair or replace.
Replace separator elements.
Repair or replace (kit available).
Repair or replace (kit available).
Replace or thaw as needed.
Repair or replace (kit available).
Repair or replace (kit available).
Replace pressure relief valve.
Section 8
39