Use And Care Manual
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.
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