Section 9
TROUBLESHOOTING
33
9.1 INTRODUCTION
The information contained in the Troubleshooting
chart is based upon both the actual applied situa-
tions and extensive testing at the factory. It contains
symptoms and usual causes for the described prob-
lems. However DO NOT assume that these are the
only problems that may occur. All available data
concerning the trouble should be systematically
analyzed before undertaking any repair or compo-
nent replacement procedures.
A detailed visual inspection is worth performing for
almost any problems which may prevent unneces-
sary damage to the compressor. Always remember
to:
a.Check for loose wiring.
b.Check for damaged piping.
c.Check for parts damaged by heat or an electrical
hort circuit, usually apparent by discoloration or a
burnt odor.
Should your problem persist after making the rec-
ommended check, consult your nearest Sullair rep-
resentative or the Sullair Corporation factory.
9.2 TROUBLESHOOTING
SYMPTOM PROBABLE CAUSE REMEDY
T1 HI Message Discharge Temperature Exceeded
225°F (107°C) for Pre-Alarm
Discharge Temperature Exceeded
235°F (113°C) for Shutdown
Ambient temperature exceeded Improve local ventilation (i.e.,
105°F (41°C) remote intake of process and/or
cooling air.
Fluid Level in Sump is Too Low Check/correct fluid level.
Thermal Valve Malfunctioned Check/replace thermal valve.
Cooler Fins are Dirty Clean cooler fins.
Water Flow is Low (water-cooled Check cooling water supply (i.e.,
packages only) closed valves).
Water Temperature is High (water- Increase water flow, lower water
cooled packages only) temperature.
Cooler is Plugged (water-cooled Clean tubes and/or shell - if tube
packages only) plugging persists, provide cleaner
water.
Temperature RTD Malfunction Check connections from RTD.
If adequate, replace RTD.
P1 HI Message 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 Check operation of unloading device.
Valve, Sullicon Actuator, Optional
Spiral Valve) Failed to Operate
Pressure Regulator Maladjusted Check operation of pressure regulator.
Solenoid Valve Failed Check operation of solenoid valve.
to Operate
Control Air Signal Leaks Check tubework feeding control
signal for leaks.
Control Air Signal Filter Clogged Service filter assembly.
SEP MNTN Message Plugged Separator Replace separator elements.
dP1 > 10 psi Check P1 & P2 pressure transducers.
P1, P2, P3 FAIL Pressure Transducer Malfunction Check connections from transducer.
If connections are good, replace transducer.
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