19-ENG A07187
TROUBLESHOOTINGCORRECTION
PROBLEM
Pressure switch does
not shut off motor when
compressor reaches "cut-
out" pressure.
Pressure switch "cut-out"
too high.
Move On/Auto/Off lever to
the "OFF" position, if the
unit does
not shut off contact a Trained
Service Technician.
Contact a Trained Service
Technician.
Excessive
tank pressure
- safety valve
pops off.
Tube fittings are not tight
enough.
Tighten fittings where air
can be heard escaping.
Check fittings with soapy
water solution. DO NOT
OVERTIGHTEN.
Air leaks at
fittings.
Air leaks at
pressure switch
release valve.
(if equipped)
Defective pressure switch
release valve.
Contact a Trained Service
Technician.
Air leaks in air
tank or at air
tank welds.
Defective air tank.
Air leaks
between head
and valve plate.
Leaking seal. Contact a Trained Service
Technician.
Air leaks at or
inside check
valve.
Check valve seat damaged. A defective check valve
results in a constant air leak
at the pressure release valve
when there is pressure in the
tank and the compressor
is shut off. Replace check
valve. Refer the "To Replace
or Clean Check Valve" in the
"Service and Adjustment"
section.