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Troubleshootin
g
Problem
Cause Solution
Gun is too clos
e to the part being
sprayed.
Gun should be 8
–12 in. (200–300
mm) from the pa
rt.
Check fluid resistivity. See
Check Fluid Resistivity, page 26.
Voltage/current display stays red
(smart guns only).
Dirty gun.
See Clean the Gun Daily, page 29.
ES or Hz indi
cator is amber.
Alternator speed is too low. 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.
ES or Hz indicator is red.
Alternat
or speed is too high.
Decrease
air pressure until
indicato
r is green.
Error display appears and Hz
indicator is red (Smart guns only).
Smart module has lost
communication with the power
supply.
Check for good connections
between Smart Module and
power supply. See Smart Module
Replacement, page 52 and
Power Supply Removal and
Replacement, page 45.
38 3A2495C