Graco WB3000 Instructions - Parts Manual page 46

Troubleshooting
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).
46
Cause
Gun is too close to the part being
sprayed.
Dirty gun.
Air turbine speed is too low.
Air turbine speed is too high.
Smart module has lost
communication with the power
supply.
Solution
Gun should be 8–12 in. (200–300
mm) from the part.
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 between
Smart Module and power supply.
See Smart Module Replacement,
page 58, and Power Supply Removal
and Replacement, page
33.
52.
3A2497C