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TROUBLESHOOTING
GUIDE
(Continued)
hessure release valve on pressur
switch has not unloaded head pressurc
PROBLEM
Knocking Noise
Compressor is not supplying
enough air
to
operate accesso-
ries.
Dirty or damaged regulator intern;
parts.
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CORRECTION
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Motor will not run.
Remove and clean, or replace.
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Decrease amount
of
air usage.
Checkthe accessory airrequirement.
If
it
is higherthan
the SCFM or pressure supplied by your air compres-
sor, you need a larger compressor.
Clean or replace air intake filter.
Do
not
operate the air
compressor in the paint spray area.
Check and replace
if required.
Remove and clean, or replace.
Tightenfittings. (See Air Leaks Section ofTroubleshoot-
ing Guide.)
Let motorcooloff and overload switch will automatically
eset.
Regulator knob has continuou!
air leak. Regulator
will
not shu
off at air outlet.
CAUSE
tefective check valve.
estricted air intake filter.
Volonged excessive use of air.
:ompressor is not large enough for air
equirement.
ole in hose.
heck valve restricted.
,ir leaks.
Aotor overload protection switch ha:
ripped.
'ank pressure exceeds pressure switc!
cut-in" pressure.
Nrong gaugewireorlengthof extensioi
:ord.
;heck valve stuck open.
-oose electrical connections.
Possible defective capacitor.
Paint spray on internal motor parts.
Possible defective motor.
Fuse blown, circuit breaker tripped.
hotorwill start automatically when tank pressure drops
ielow "cut-in" pressure of pressure switch.
;heck for proper gauge wire and cord lenah.
?emove and clean, or replace.
;heck wiring connection inside pressure switch and
erminal box area.
a"
Return
to
an Authorized Warranty Service Center for
inspection or replacement,
if
necessary.
Have checked at an Authorized Warranty 'Service
Center.
Do
not operate the compressor
in
he paint
spray area. See flammable vapor warning.
'
Have checked at an Authorized Warranty Service
Center.
1.
Check fuse box for blown fuse and replace,
if
necessary. Reset circuit breaker. Do not use a
fuse or circuit breaker with higher rating than that
specified for your particular branch circuit.
Check for proper fuse; only "Fusetron" type
T
fuses are acceptable.
Check for low voltage conditions and/or proper
extension cord.
Disconnect the other electrical appliances from
circuit or operate the compressor on its own
branch circuit.
Bleed the line by pushing the lever on the pressure
switch to the
"off"
position;
if
the valve does not open,
replace it.
2.
3.
4.
Replace regulator.
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