Troubleshooting
30 3A0994E
Fan pattern varies dramatically
while spraying.
OR
Sprayer does not turn on promptly
when resuming spraying.
Pressure control switch is worn and
causing excessive pressure varia-
tion.
Take sprayer to Graco/Airlessco
authorized service center.
Cannot trigger spray gun. Spray gun trigger lock is locked. Rotate trigger safety lever to unlock
trigger lock, page 10.
Paint is coming out of pressure con-
trol switch.
Pressure control switch is worn. Take sprayer to Graco/Airlessco
authorized service center.
Prime/Spray valve actuates auto-
matically relieving pressure through
prime tube.
System is over pressurizing. Take sprayer to Graco/Airlessco
authorized service center.
Paint leaks down outside of pump. Pump packings are worn. Replace pump packings.
Motor is hot and runs intermittently.
Motor automatically shuts off due to
excessive heat. Damage can occur
if cause is not corrected.
Thermal Overload, page 7.
Vent holes in enclosure are plugged
or sprayer is covered.
Keep vent holes clear of obstruc-
tions and overspray and keep
sprayer open to air.
Extension cord is too long or not a
heavy enough gauge.
Replace extension cord. Read
Grounding and Electrical Require-
ments, page 7.
Unregulated electrical generator
being used has excessive voltage.
Use electrical generator with a
proper voltage regulator. Sprayer
requires 120VAC, 60 Hz, 1500-Watt
generator.
Problem Cause Solution
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