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Troubleshooting
Problem
The machine stops working
and the motor stops running.
Overheating, breaker tripped.
Air compressor does not
maintain pressure, or
pumping slow.
Possible Cause
The pressure gauge shows the
pressure value is higher
than 145 psi.
An inappropriate extension cord
was used.
The wire pins inside the housing
are loose or the internal wires
are broken.
Power cord, pressure switch,
switch or other electrical
components are not energized.
Other case.
Overheating or overcurrent of
the motor.
on cut in pressure about
145 psi by tank pressure gauge,
the pressure of the tank, then
check valve after the
compressor stop whether it is
The ball valve is open.
of the air compressor
(rate: 4.0 @ 40 psi, 3.0 @ 90 psi).
The quick coupler or air hose
is leaking.
Leakage of the air tank,
aluminum tube or threaded
connections.
Other case.
8
Solution
Bleed air until the pressure is below 145 psi.
The proper extension cord should be used
(16 AWG does not exceed 50 feet and 12 AWG does not
exceed 100 feet).
Rewiring.
Replace new electrical components.
Return the compressor.
Turn off the air compressor, unplug the power cord and
allow the unit to cool (around 1 hour). Then plug the
power cord into an appropriate outlet and turn on the
switch again.
Replace the check valve.
Close the ball valve.
Use proper tools for continuous operation
(less than 4.0 @ 40 psi, 3.0 @ 90 psi).
Change the quick coupler or air hose.
Air leakage at threaded joint you can be tightened
or reinstalled.
Other leaking should replace parts or return
the compressor.
Return the compressor.
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