Sullair ES-8 Operator's Manual And Parts List page 41

9.8 TROUBLESHOOTING -- COMPRESSOR (continued)
SYMPTOM
T1 HI Message (continued)
P1 HI Message
SEP MNTN Message
COMPRESSOR DOES NOT
BUILD FULL DISCHARGE
PRESSURE
LINE PRESSURE RISES ABOVE
UNLOAD SETTING
EXCESSIVE FLUID CONSUMPTION
COMPRESSOR MAINTENANCE
AND TROUBLESHOOTING
PROBABLE CAUSE
Temperature RTD Malfunction
Discharge Pressure Exceeded
Shutdown Level Because:
P1 MAX--- 3psi (0.2 Bar) Exceeded
for Pre--- Alarm
P1 MAX Exceeded for Shutdown
Unloading Device (i.e., Blowdown
Valve, Inlet Control Valve) Failed to
Operate
Pressure Regulator Maladjusted
Solenoid Valve Failed
to Operate
Control Air Signal Leaks
Control Air Signal Filter Clogged
Dryer Evaporator Iced Up
Plugged Separator
dP1 > 10 psi
Air Demand Exceeds Supply
Inlet Air Filter Clogged
Inlet Valve Not Fully Open
Pressure Sensor and/or Connections
at Fault
Pressure Sensor P2 at Fault
Unloading Device (i.e., Blowdown
Valve, Inlet Control Valve) Failed
to Operate
Solenoid Valve Failed
to Operate
Control Air Signal Leaks
Damaged or Improperly Gasketed
Separator Elements
Fluid System Leaks
Fluid Level Too High
Excessive Fluid Foaming
REMEDY
Check connections from RTD.
If adequate, replace RTD.
Check operation of unloading device.
Check operation of pressure regulator.
Check operation of solenoid valve.
Check tubework feeding control signal
for leaks.
Service filter assembly.
Consult Dryer Troubleshooting Section.
Replace separator elements.
Check P1 & P2 pressure transducers.
Check air service lines for open
valves or leaks.
Check for maintenance message on,
on Supervisor display. Inspect and/or
change element.
Check actuation and butterfly disc
position.
Check connections from trans---
ducer. If adequate, replace trans---
ducer.
Check connections from trans---
ducer. If adequate, replace
transducer.
Check operation of unloading device.
Check operation of solenoid
valve.
Check tubework feeding control
signal for leaks.
Inspect separator elements and
gaskets. Replace if damaged.
Check tube/pipework for leaks.
Drain excess fluid.
Drain and change fluid.
Section 9
35