20
21
TR
OUBLES
HOOT
IN
G
TR
OUBLES
HOOT
IN
G
model no. 299-1978-8 | contact us 1-800-689-9928
The motor
will not run
or start.
The power cord is not plugged in. Plug the power cord into a grounded outlet.
The power switch is in the O
(OFF) position.
Set the power switch to the I (ON) position.
The extension cord is the wrong
wire gauge or is too long.
Check extension cord information (page 7)
for the proper wire gauge and cord length.
The motor’s thermal overload
protection has tripped.
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.
A fuse has blown or a circuit
breaker has been tripped.
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 air tank pressure exceeds
the preset pressure switch limit.
The motor will start automatically when the
tank pressure drops below the cut-in
pressure.
The safety valve is stuck open.
Clean or replace the safety valve.
Electrical connections are lose.
Have the compressor serviced by a qualified
technician.
The motor, capacitor, or safety
valve is defective.
Have the compressor serviced by a qualified
technician.
The pressure switch does not
shut off the motor when the air
compressor reaches the cut-out
pressure and the safety valve
activates.
Set the pressure switch to the OFF position.
If the motor does not shut off, unplug the air
compressor. If the pressure switch is
defective, replace it.
The compressor’s capacity
is not enough.
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 4), a larger capacity air
compressor is needed. Most accessories are
rated at 25% of actual CFM while running
continuously.
PROBLEM
POSSIBLE CAUSES
SOLUTIONS
The motor
runs
continuously
when the
pressure
switch is in
the ON
position.
PROBLEM
POSSIBLE CAUSES
SOLUTIONS
The regulator
does not
regulate the
pressure.
The regulator or its internal parts
are dirty or damaged.
Replace the regulator.
The pressure is
low or there is
not enough air.
There is a leak at one of the
fittings.
Check the fittings with soapy water. Tighten
or reseal leaking fittings (apply plumber's tape
on threads). Do not over-tighten.
The tank drain valve is open.
Close the drain valve.
The air intake is restricted.
Clean or replace the air filter element.
Prolonged excessive use of air.
Decrease the amount of air used.
There is a hole in the air hose.
Check the air hose and replace it if necessary.
The tank leaks.
Replace the tank immediately. Do not attempt
to repair it.
The valve is leaking.
Check for worn parts and replace them if
necessary.
There is
moisture in the
discharge air.
There is condensation in the air
tank caused by a high level of
atmospheric humidity or because
the air compressor has not been
running long enough.
Drain the air tank after each use. Drain the air
tank more often in humid weather and use an
air-line filter.
The
compressor
overheats.
The ventilation is inadequate.
Relocate the compressor to an area with cool,
dry and well-circulated air.
Cooling surfaces are dirty.
Clean all cooling surfaces on the pump and the
motor thoroughly.
The valve is leaking.
Replace worn parts and reassemble using new
plumber's tape.
