Graco Pro Xp 3A2494D Instructions Manual page 36

Troubleshooting
Problem
Problem Problem
Voltage/current display stays red
(smart guns only).
ES or HZ indicator is amber.
ES or Hz indicator is red.
Error display appears and Hz
indicator is red (Smart guns only).
36
Cause
Cause Cause
Gun is too close to the part being
sprayed.
Check fluid resistivity.
Dirty gun.
Alternator speed is too low.
Alternator speed is too high.
Smart module has lost
communication with the power
supply.
Solution
Solution Solution
Gun should be 8–12 in. (200–300
mm) from the part.
See
Check Fluid Resistivity, page
See Clean the Gun Daily, page
Increase air pressure until
indicator is green. To avoid
over-atomization, use the
atomizing air restrictor valve to
reduce the atomizing air to the air
cap.
Decrease air pressure until
indicator is green.
Check for good connections be-
tween the Smart Module and the
power supply. See Smart Module
Replacement, page 51
Power Supply Removal and
Replacement, page 43.
26.
29.
and
3A2494D