TROUBLESHOOTING
PROBLEM
Compressor won't start
Compressor runs continuously;
doesn't shut off
Safety relief valve pops open
Air leaks from safety relief valve
Tool, sprayer, or other accessory
doesn't work properly.
Unit runs continuously
Noisy operation
Air leaks at motor/pressure switch
release valve while motor is running
Air leaks at motor/pressure switch
release valve after motor stops.
CAUSE
Circuit breaker tripped
Fuse blown in power supply branch
circuit.
Power turned off.
Pressure release valve on
motor/pressure switch has not
unloaded pump head pressure.
Defective cord or plug
Motor thermal overload tripped
Motor, capacitor, pressure switch, or
check valve inoperable.
Drain plug open
Safety relief valve stuck open
Air fitting on hose stuck open
Pressure switch misadjusted
Pressure switch inoperable
Valve stuck or inoperable
Air pressure too low or too high
Air usage greater than compressor
output capacity
Oil level low
Internal wear or damage
Switch inoperable
Switch inoperable
19
REMEDY
Reset breaker
Replace fuse. Use Fusetron
type "T" fuse only.
Turn power on
Bleed line by moving switch to
"OFF" position. Pull switch to
"ON" position to restart unit.
Replace
Turn compressor off, allow motor
to cool, and reset overload
button.
Contact authorized service
dealer.
Close drain plug
Replace
Repair or replace
Have authorized service dealer
adjust pressure switch.
Have switch serviced by
authorized service dealer.
Pull on ring and release.
Replace valve if leak continues.
Adjust regulator to provide
pressure recommended by
product manufacturer.
Check CFM requirements of air
tool or accessory being used.
Check for leaks, and add oil
Have unit serviced by authorized
service dealer.
Have authorized service dealer
replace switch
Have authorized service dealer
replace switch