Sullair 02250160-842, Instruction Manual

Section 5
TROUBLESHOOTING

22

5.2 TROUBLESHOOTING 

GUIDE

Table 5.1 contains symptoms and usual causes for the problems that may occur
throughout the compressor system.  Each warning or fault message that may appear is
listed along with conditions for the problem, a probable cause, and a suggested solution
to the problem.  

DO NOT 

assume that these are the only troubles that may occur.

TABLE 5.1  WS Controller Troubleshooting Guide

MESSAGE

PROBABLE CAUSE

REMEDY

Analyze Oil

Service interval has expired.

Maintenance due.

Select Maintenance from menu to see service
due and part numbers.

Aux. Motor Overload

Auxiliary Motor Tripped on
Cooling Fan, Oil Pump or
Other Motor.

Reset auxiliary overload after element cools.
Verify correct motor amps.

Check for loose connections.

Check motor starter contact for proper
operation.

Check line voltage, if low consult power
company.

Change Air Filter

Change Oil

Change Oil Filter

Change Separator

Service interval has expired.

Maintenance due.

Select Maintenance from menu to see service
due and part numbers.

Controller Watchdog

Controller fault.

Contact Sullair Factory Service.

E-Stop Push Button

E-Stop Button Active.

Faulty E-Stop Button.

Release button.

Check wiring.

High Air Filter 

Δ

P

Differential Pressure Across
Inlet Filter High.

Replace filter.

Check inlet filter pressure switch.

High analog input AN0
thru AN9

Sensor (Pressure
Transducer, Temp Probe,
etc.) or Wiring Failure.

Check sensor wiring.

Check sensor.

High Oil Filter 

Δ

P

Pressure across oil filter
above 20 psi (1.4 bar) while
running.

Oil filter clogged.

 Low ambient temperature.

Sensor failure.

Replace oil filter.

Sump heater may be required in ambient
temps below 40°F (4°C).

Check sensor, wiring and tubing.

High Package Pressure

High Pressure A

High Pressure B

High pressure.

Faulty pressure sensor.

Check operation of valves and controls.

Check and replace pressure sensor if
defective.

Continued