Filter
Top Products
Troubleshooting
309293J 39
Electrical Troubleshooting
Problem Cause Solution
Voltage still present at gun after fol-
lowing the Fluid Voltage Discharge
and Grounding Procedure
ES ON/OFF valve is not turned OFF. Turn OFF.
Did not wait long enough for voltage
to discharge.
Wait longer before touching electrode
with grounded rod. Check for bleed
resistor failure.
Air pocket in fluid line leaves fluid
near gun isolated.
Determine cause and correct. Purge
air from fluid line.
Voltage isolation system failed. Service voltage isolation system.
Grounding cylinder not operating. Check resistance of grounding cylin-
der, page 33. Replace if needed.
Poor wrap. ES ON/OFF valve OFF (0).* Turn ON (I).
Gun air pressure too low. Check air pressure to gun; minimum
40 psi (0.28 MPa, 2.8 bar) needed at
gun for full voltage.
Atomizing air pressure too high. Decrease.
Fluid 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 gun resistance. See Test Gun Resistance on page
30.
Fluid leaks from the packing (26d)
and causes a short.
Clean the packing rod cavity.
Replace the packing rod. See page
45.
Faulty turbine alternator. Be sure the plug is in place on the
back of the turbine alternator hous-
ing. Remove and test the turbine
alternator. See page 48.
The KV HI-LO lever is on LO. Check the lever actuation; replace if
needed.
Spilled paint, dried paint, or other
contaminants inside WB100 enclo-
sure, causing a short circuit.
Clean interior of enclosure.