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Troubleshooting
The power cord is not plugged in.
The motor’s thermal overload
protection has tripped.
POSSIBLE CAUSE
PROBLEM
The motor will
not run or start
Plug the power cord into a grounded outlet.
Set the power switch to the ON position.
The power switch is in the
O (OFF) position.
The extension cord is the wrong
wire gauge or is too long.
A fuse has blown or a circuit
breaker has been tripped.
The air tank pressure exceeds
the preset power switch limit.
The safety valve is stuck open.
Electrical connections are loose.
The motor, capacitor, or safety
valve is defective.
The motor runs
continuously
when the
power switch
is in the ON
position.
Check extension cord information (page 6)
for the proper wire gauge and cord length.
Turn the air compressor off, unplug the
power cord and wait until the motor has
cooled down. Plug in the power cord only
after the motor has cooled down, and wait
for at least 5 minutes to make sure the
thermal overload protector has recovered.
Replace the fuse or reset the circuit
breaker.
Verify that the fuse has
the proper
amperage.
Check for low voltage conditions.
Disconnect any other electrical appliances
from the circuit or operate the compressor
on a dedicated circuit.
The motor will start automatically when the
tank pressure drops below the cut-in
pressure.
Clean or replace the safety valve.
Contact an authorized service center.
Contact an authorized service center.
Set the power switch to the OFF
position. If the motor does not shut off,
unplug the air compressor. If the power
switch is defective, replace it.
Check the air requirements of the
accessory that is being used. If it is higher
than the CFM (Cubic Feet per Minute )and
pressure supplied by the compressor
(page 7), a larger capacity air compressor
is needed. Most accessories are rated at
25% of actual CFM whi
le running
continuously.
The prower switch does not
shut off the motor when the air
compressor reaches the cut-out
pressure and the safety valve
activates.
The compressor’s capacity is
not enough.
The regulator
does not
regulate the
pressure.
The regulator or its internal parts
are dirty or damaged.
Replace the regulator.
SOLUTIONS
Troubleshooting
Prolonged excessive use of air.
POSSIBLE CAUSEPROBLEM
The pressure
is low or
there is not
enough air.
Close the tank drain.
Clean or replace the air filter element.
Check the fittings with soapy water. Tighten
or reseal leaking fittings (apply plumber’s
tape on threads). Do not over tighten.
SOLUTIONS
The tank drain is open.
There is a leak at one of the
fittings.
The air intake is restricted.
There is a hole in the air hose.
There is condensation in the ai
r
tank caused by a high level of
atmospheric humidity or because
the air compressor has not been
running long enough.
The tank leaks.
The ventilation is inadequate.
Cooling surfaces are dirty.
There is
moisture in
the discharge
air.
Decrease the amount of air used.
Check the air hose and replace it if
necessary.
Replace the tank immediately. Do not
attempt to repair it.
Relocate the compressor to an are
a with
cool, dry and well-circulated air.
Clean all cooling surfaces on the pump
and the motor thoroughly.
Replace worn parts and reassemble using
new plumber's tape.
The
compressor
overheats.
Check for worn parts and replace them if
necessary.
Drain the air tank after each use. Drain the
air tank more often in humid weather and
use an air-line filter.
The valve is leaking.
The valve is leaking.
Page 15Page 14
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