7: Maintenance 1600H T4F Perkins User Manual
02250248-733 R03
70 Subject to EAR, ECCN EAR99 and related export control restrictions.
7.7 Troubleshooting
Table 7-3 is based on both the data obtained from actual
tests conducted at our factory and real applied situations. It
contains symptoms and usual causes for the described
problems. However, do not assume that these are the only
problems that may occur. All available data concerning the
trouble should be systematically analyzed before undertak-
ing any repairs or component replacement procedures.
• Check for loose wiring.
• Check for damaged piping.
• Check for parts damaged by heat or an electri-
cal short circuit, usually apparent by discolor-
ation or a burnt odor.
Should your problem persist after making the recom-
mended check, consult your nearest Sullair representa-
tive or Sullair.
Table 7-3: Troubleshooting guide
Symptom Probable cause Remedy
Compressor will not start
No fuel Check fuel level and add fuel if necessary.
Plugged fuel filter Replace the fuel filter element(s).
Battery
Check electrolyte level and add distilled
water and recharge if necessary.
Loose battery cables; tighten cables.
Dirty battery cables; clean thoroughly.
Plugged air filter Replace the air filter element.
Engine problems may have developed
Check active engine codes and refer to
Engine Operator’s Manual.
Electrical control fault
Refer to the controller message bar for
details.
Compressor shuts down
with air demand present
No fuel
Check fuel gauge and add fuel if nec-
essary.
Compressor discharge tempera-
ture switch is open
Cooling air flow is insufficient; clean
cooler and check for proper ventilation.
Low fluid sump level; add fluid.
Dirty compressor fluid filter; change
element.
Thermostatic element is not functioning
properly; change the thermostatic element.
Defective discharge temperature
switch; check for a short or open circuit
to the engine fuel solenoid. Should this
check out normal, it could be possible
that the temperature switch itself is
defective.
Electrical control fault
Refer to the controller message bar for
details.
Low DEF level
Check DEF level gauge and add if nec-
essary.
Exhaust aftertreatment fault
Check active engine codes and refer to
Engine Operator’s Manual.