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Stationary Electric Air Compressor Manual 15
Move Motor/Pressure Switch to
"AUTO" position.
Turn unit off, wait 5 minutes, then
press Motor Thermal Overload until
click is heard.
Reset circuit breaker or replace fuse if
necessary, using only "Fusetron" type
T fuses.
Check for low voltage conditions.
Disconnect any other electrical ap-
pliances from circuit or operate air
compressor on its own branch circuit.
Contact your Customer Service.
The motor will start automatically
when air tank pressure drops down to
the "Cut-in" or "Start" pressure of the
Motor/Pressure Switch.
Bleed the line by moving the switch to
the "Off" position.
Remove and clean or replace.
Contact your Customer Service.
Add oil to pump
Motor/Pressure Switch turned "OFF".
Motor Thermal Overload tripped on
air compressor.
Circuit breaker tripped or fuse blown
at power source.
Motor voltage does not match power
source.
Air tank pressure achieved the "Max-
imum setting" or "Stop pressure" of
the Motor/Pressure Switch.
Pressure release valve on Motor/
Pressure Switch has not unloaded
pump head pressure.
Pilot valve's check valve stuck open.
Defective motor, or Motor/Pressure
Switch.
Low oil level (if unit is equipped with
Low Oil Sensor)
Air compressor will not start,
but motor hums, then stops.
Loose electrical connection.
Too many appliances being oper-
ated on same circuit.
Incorrect voltage, incorrect sized
circuit breaker, fuse or motor. De-
fective motor.
Defective Check Valve or Motor/
Pressure Switch.
Contact qualied electrician.
Use another circuit or remove excess
appliances from circuit.
Contact qualied electrician.
Replace.
Air compressor does not stop
even though the maximum
pressure allowed has been
reached.
Motor/Pressure Switch not operat-
ing correctly.
Replace.
Air compressor will not start.
TROUBLESHOOTING
SYMPTOM PROBABLE CAUSE REMEDY