Troubleshooting
Electrical Troubleshooting
Problem
Cause Solution
ES On/Off switch is OFF (O). Turn ON (I).
Gun air pressure too low (ES
indicator is amber).
Check air pressure to gun;
minimum45psi(0.32MPa,3.2
bar) needed at gun for full voltage.
Atomizing air pressure too high. Decrease.
Incorrect distance from gun to part. Should be 8-12 in. (200-300 mm).
Poorly grounded parts. Resistance must be 1 megohm or
less. Clean workpiece hangers.
Faulty gu
n resistance.
See
Test Gun Resistance, page 31.
Low fluid
resistivity.
See
Check Fl
uid Resistivity, page 26.
Fluid leaks from the packing (2c)
and causes a short.
See Packing Rod Repair, page 40.
Poor wrap.
Faulty
alternator.
See Alternator Removal and
Replacement, page 44.
ES On/
Off switch is OFF (O).
Turn O
N(I).
ES or H
z indicator is not lit.
No power.
Check power supply, alternator,
and alternator ribbon cable. See
Power Supply Removal and
Replacement, page 43 and
Alternator Removal and
Replacement, page 44.
Operator not grounded or is near
ungrounded object.
See Grounding, page 21.Operator gets mild shock.
Gu
n not grounded.
Se
e Check Gun Electrical
Gr
ounding, page 25,and
Te
st Gun Resistance, page 31.
Operator gets shock from
workpiece.
Workpiece not grounded. Resistance must be 1 megohm or
less. Clean workpiece hangers.
3A2494E 35
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