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7.4 ARC FAULT TROUBLESHOOTING
CAUTION: Place the ends of the disconnected cables at least six (6) inches away from any
grounded surface.
Arc Faults
Cause
Solution
Visible electrical arc at the nozzle
after pressing the TEST button
Move the nozzles further away from the target and try again.
Purge the fluid lines to remove any possible air pockets in the nozzle
General arc fault
Lower the high voltage output by turning the H.V. ADJ potentiometer dial
counterclockwise. Press the TEST button on the control panel circuit board and
check the nozzle output.
Slowly turn the H.V. ADJ potentiometer adjustment dial clockwise until the spray
from the affected nozzle becomes a thin steady stream.
Additional Arc Fault Troubleshooting
If the system still faults, press the STOP button disconnect the cables from the spray control panel. Press the RESET
button, then the TEST button on the control panel circuit board.
If the system still faults with no cables connected, there is a problem inside the spray control panel. Consult your local
Spray Specialist.
If the system doesn
’
t fault with the cables disconnected, press the STOP button and reconnect the cables at the spray
control panel and disconnect the cable from the nozzles.
Press the RESET Pushbutton then the TEST button on the PCB. If the system faults, then there is a problem with the
cables. If the system doesn
’
t fault, the problem is at the nozzle.
Arc Faults Originating At The Nozzles
Solution
Purge fluid lines to ensure no air pockets are trapped in the nozzles
Move the nozzle back and further away from the spray target
With exception of the target, check to make sure there are no grounded objects near the nozzle tip
Ensure that HV cable silicone boots are tightly connected to the nozzle electrode stem
Check that all system grounding connections have been made and are secure
