Graco 3A2497BPro User Manual download pdf (Page 46)

Troubleshootin

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.

Voltage/current display stays red

(smart guns only).

Dirty gun.

See Clean the Gun Daily, page 33.

ES or Hz indicator is amber.

Air turbine s

peed is too low.

Increase air

pressure until

indicator is

green. To avoid

over-atomi

zation, use the

atomizing a

ir restrictor valve to

reduce the a

tomizing air to the air

cap.

ES or Hz indicator is red.

Air turbine speed is too high. Decrease air pressure until

indicator is green.

Error display appears and Hz

indicator is red (Smart guns only).

Smart mod

ule has lost

communic

ation with the power

supply.

Check for

good connections

between S

mart Module and

power sup

ply. See Smart Module

Replacem

ent, page 58,and

Power Sup

ply Removal and

Replace

ment, page 52.

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Graco 3A2497BPro User Manual Page 46

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