Filter
Top Products
Troubleshooting
312079A 31
Troubleshooting
Check everything in this Troubleshooting Table before you bring the sprayer to a Graco/MAGNUM autho-
rized service center.
Problem Cause Solution
Power is on and sprayer is plugged
in, but motor does not run, and pump
does not cycle.
AllControl is set at zero pressure. Turn AllControl clockwise to increase
pressure setting.
Motor or control is damaged. Take sprayer to Graco/M
AGNUM
authorized service center.
Electric outlet is not providing power. • Try a different outlet or plug in
something that you know is work-
ing to test outlet.
• Reset building circuit breaker or
replace fuse.
Extension cord is damaged. Replace extension cord. Read
Grounding and Electric Require-
ments, page 4.
Sprayer electric cord is damaged. Check for broken insulation or wires.
Replace electric cord if damaged.
Paint is frozen or hardened in pump. Unplug sprayer from outlet. If frozen
do NOT try to start sprayer until it is
completely thawed or you may dam-
age the motor, control board and/or
drivetrain.
Make sure AllControl is OFF. Place
sprayer in a warm area for several
hours. Then plug in and turn AllCon-
trol to Prime/Clean to see if motor will
start.
If paint is hardened in sprayer, pump
packings, valves, drivetrain or pres-
sure switch may need to be replaced.
Take sprayer to Graco/M
AGNUM
authorized service center.
System is already pressurized. Turn AllControl to OFF, pause 2-3
seconds and then turn AllControl to
STORAGE to relieve pressure.
Pump does not prime. AllControl not set to correct function. Turn AllControl to PRIME/CLEAN
PRIME position.
Inlet screen is clogged. Clean debris off inlet screen.
Pump valve check balls or seat are
dirty.
Remove fittings. Clean or replace ball
and seat.