Section 9
97
DE-18 USER MANUAL
TROUBLESHOOTING
9.1 INTRODUCTION
The following information has been compiled from
operational experience with your package. It
identifies symptoms and describes probable causes
for problems. However DO NOT assume that these
are the only problems that may occur. All available
data concerning the trouble should by systematically
analyzed before undertaking any repairs or
component replacement.
The collection of operational data concerning
possible trouble should be analyzed to prevent
complete compressor breakdown. An example of this
would be the vibrations signature increase of a
damaged bearing or the efficiency decrease of a dirty
heat exchanger.
A detailed visual inspection should be performed for
all problems. Always remember to:
1. Check for loose wiring.
2. Check for damaged piping.
3. Check for parts damaged by heat or an elec-
trical short circuit, usually apparent by discol-
oration or a burnt odor.
Should your problem persist after making the
recommended check, consult your nearest Sullair
representative or the Sullair Corporation.
SYMPTOM/MESSAGE PROBABLY CAUSE REMEDY
BUS ERROR ON MDDM Lost Data link From Engine Consult Sullair Service Department.
COMPRESSOR WILL NOT
START: LOST FUEL SENDER
Low Fuel Check fuel level and add il necessary.
Bad Fuel sender Replace fuel sender.
ENGINE WARNING/SHUTDOWN
FLASHING· CAT SHUTDOWN-
READ MDDM
Engine Problem May Have Developed Observe flashing code and refer to the
Engine Operator's Manual.
T-1. T-2, T-3. T-4. T-S,
LST ANALOG XX SO
Temperature Probe Failure Check connectionsf from probe. If
adequate, replace probe.
P-1, P·2, P-3, P--4,
LST ANALOG XX SO
Pressure Transducer Failure Check connections from transducer. If
adequate, replace transducer.
E-STOP Emergency Switch Open (Depressed) Emergency Switch Open (Depressed)
MDDM COMM FAIL
TRIPPED CIRCUIT BREAKER
INSIDE CONTROL PANEL
Diode Installed in Reverse Install properly.
Short Circuit Check and reset if necessary.
COMPRESSOR SHUTS DOWN
WITH AIR DEMAND: LOST FUEL
SENDER
Low Fuel Check and add if necessary.
LO P2 SD The Machine Ran at a Final Discharge
Pressure Below 50 psig (3.4 barg) for
Ten Minutes
Adjust valve downstream of package to
hold minimum 70 psig (4.8 barg) line
pressure.
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