15
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
pressure switch limit.
The safety valve is stuck open.
Electrical connections are lose.
The motor, capacitor, or safety valve is
defective.
The motor runs
continuously when
the ON/OFF switch
is in the ON
position.
Check extension cord information (page 7) 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 wait
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, or call
1-800-743-4115
Contact an authorized service center, or call
1-800-743-4115
Set the ON/OFF switch to the OFF position. If the motor
does not shut off, unplug the air compressor. If the
pressure 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 18), a
larger capacity air compressor is needed.
Most accessories are rated at 25% of actual CFM while
running continuously.
The ON/OFF 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
Summary of Contents for 74045
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