17 - ENG
TROUBLESHOOTING
Risk of Unsafe Operation. Unit cycles automatically when
power is on. When servicing, you may be exposed to voltage sources, compressed air, or moving parts. Before servicing unit unplug or disconnect electrical supply to the air compressor, bleed tank of pressure, and allow the air
compressor to cool.
Problem Possible Cause Solution
The compressor
does not run.
□ There is a loss of power or
the motor is overheated.
□ Check for proper use of extension cord.
□ There is no power to the
unit.
□ Check to be sure the unit is plugged in.
□ The circuit breaker has
tripped or a fuse has blown
at the main power source.
□ Check the fuse/breaker.
□ The thermal overload
protector is actuated.
□ Turn the air compressor OFF (O).
□ Unplug the air compressor and wait until
the compressor cools down.
□ Plug the air compressor into an approved
outlet.
□ Turn the air compressor AUTO (I).
□ The pressure switch is bad. □ Bring the compressor to a service center.
□ The compressor has reached
automatic shutoff pressure.
□ Release the air from the tank until the
compressor restarts automatically.
The motor hums
while running
slowly, or it does
not run at all.
□ There is low voltage from
the power source.
□ Call an electrician.
□ The wrong gauge wire or
length of extension cord is
being used.
□ Check for proper gauge wire and cord
length.
□ There is a shorted or open
motor wiring.
□ Bring the compressor to a service center.
□ There is a defective check
valve or unloader.
□ Bring the compressor to a service center.
The fuses blow
or circuit breaker
trips repeatedly.
□ The incorrect fuse type is
being used.
□ Check for the proper fuse.
□ Use a time-delay fuse. Disconnect other
electrical appliances from the circuit
or operate the compressor on its own
branch circuit.
□ The wrong gauge wire or
length of extension cord
is used.
□ Check for the proper gauge wire and
cord length.
□ There is a defective check
valve or unloader.
□ Bring the compressor to a service center.