Porter-Cable CFFR350C - Manual (Page 18)

18 - ENG A09770
TROUBLESHOOTING
Risk of Unsafe Operation. Unit cycles automatically
when power is on. When performing maintenance, you
may be exposed to voltage sources, compressed air, or moving parts.
Personal injuries can occur. Before performing any maintenance or repair,
disconnect power source from the compressor and bleed Off all air
pressure.
PROBLEM CAUSE CORRECTION
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. Defective pressure switch
release valve. Contact a Trained Service
Technician.
Air leaks in air
tank or at air
tank welds. Defective air tank. Air tank must be replaced.
Do not repair the leak.
Risk of
Bursting.
Do not drill into, weld or
otherwise modify air tank
or it will weaken. The tank
can rupture or explode.
Air leaks
between head
and valve plate. Leaking seal.
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 to the "To
Replace or Clean Check
Valve" in the "Service and
Adjustment" section.
Contact a Trained Service
Technician.