Troubleshooting
3A9019A EN
41
When paint is sprayed, it runs down
the wall or sags.
Material is going on too thick.
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.
When paint is sprayed, coverage is
inadequate.
Material is going on too thin.
Move gun slower.
Choose Spray Tip with larger hole
size.
Choose Spray Tip with narrower fan.
Make sure gun is close enough to
surface.
Fan pattern varies dramatically while
spraying.
Pressure control switch is worn and
causing excessive pressure variation.
Take sprayer to Graco/M
AGNUM
authorized service center.
Cannot trigger spray gun.
Spray gun trigger lock is engaged.
Rotate trigger lock to disengage
trigger lock.
Paint is coming out of pressure
control switch.
Pressure control switch is worn.
Take sprayer to Graco/M
AGNUM
authorized service center.
Paint is leaking through Drain Tube.
Sprayer is over pressurizing.
Take sprayer to Graco/M
AGNUM
authorized service center.
Paint leaks down outside of pump.
Pump packings are worn.
Replace pump. See .
Motor is hot and runs intermittently.
Motor automatically shuts off due to
excessive heat. Damage can occur if
cause is not corrected.
Vent holes in enclosure are plugged
or sprayer is covered.
Keep vent holes clear of obstructions
and overspray and keep sprayer
open to air.
Battery has insufficient charge.
Charge battery.
Motor needs to be replaced.
Take sprayer to Graco/Magnum
authorized retailer, distributor, or
service center.
Sprayer makes no sound when pres
-
sure control is ON and ON/OFF
switch is ON (illuminated).
ON/OFF switch light blinks two times
when pressure control is ON.
Indicates incorrect voltage.
Replace battery with charged battery.
Battery has reached end of life.
Replace battery.
Motor damaged, replace motor
assembly.
ON/OFF switch light blinks three
times when pressure control is ON.
Indicates battery temperature is too
hot or too cold.
Allow battery to cool down or warm
up to room temperature.
ON/OFF switch light blinks four times
when pressure control is ON.
Indicates locked rotor condition.
Replace pump and/or motor
assembly.
ON/OFF switch light blinks five times
when pressure control is ON.
Indicates motor temperature is too
hot.
Allow motor to cool down to room
temperature.
Problem
Cause
Solution