Graco Magnum True Airless Project Painter Plus Owner's Manual page 36

Troubleshooting
Problem
When paint is sprayed, it runs down
the wall or sags.
When paint is sprayed, coverage is
inadequate.
Fan pattern varies dramatically while
spraying.
Cannot trigger spray gun.
Paint is coming out of pressure
control switch.
Paint is leaking through Drain Tube.
Paint leaks down outside of pump.
Motor is hot and runs intermittently.
Motor automatically shuts off due to
excessive heat. Damage can occur if
cause is not corrected.
Online Resources
Visit Our Website:
Operational Videos:
Manuals:
Parts Online:
Material Compatibility:
36
Cause
Material is going on too thick.
Material is going on too thin.
Pressure control switch is worn and
causing excessive pressure variation.
Spray gun trigger lock is engaged.
Pressure control switch is worn.
Sprayer is over pressurizing.
Pump is worn.
Vent holes in enclosure are plugged
or sprayer is covered.
Extension cord is too long or not a
heavy enough gauge.
Unregulated electrical generator
being used has excessive voltage.
Motor needs to be replaced.
magnum.graco.com
magnum.graco.com/magop/
magnum.graco.com/support/#manuals
magnum.graco.com/partsonline/
magnum.graco.com/downloads/MaterialCompatibility.pd
f
Solution
Move gun faster.
Choose a Spray Tip with smaller hole
size.
Choose Spray Tip with wider fan.
Make sure gun is far enough from
surface.
Move gun slower.
Choose Spray Tip with larger hole
size.
Choose Spray Tip with narrower fan.
Make sure gun is close enough to
surface.
Take sprayer to Graco/M
authorized service center.
Rotate trigger lock to disengage
trigger lock.
Take sprayer to Graco/M
authorized service center.
Take sprayer to Graco/M
authorized service center.
Replace pump.
Keep vent holes clear of obstructions
and overspray and keep sprayer open
to air.
Replace extension cord.
Use electrical generator with a proper
voltage regulator.
Take sprayer to Graco/Magnum
authorized retailer, distributor, or
service center.
3A5431B EN
AGNUM
AGNUM
AGNUM