MAINTENANCE
MAINTENANCE
General Problem
Possible Cause
Solution
TROUBLESHOOTING GUIDE
Blank Display
Check the power connections and verify they are
fully connected and power is available. Power cycle
the unit off and back on.
Check Fuses and replace if blown using the
replacement fuses inside the lid of the unit.
Fault
Description
Solution
FAULT TROUBLESHOOTING GUIDE
WA R N I N G
!
Before troubleshooting gun and control unit
problems, flush the gun with solvent and purge with
air. Some of the tests will require high voltage to be
applied to the gun, so the gun must be empty of paint
and solvent.
No power
Blown fuse
(Continued On Next Page)
Cable Fault (CF)
The Cable Fault indicates the control unit
does not detect a high voltage section on
the end of the cable. The fault typically
occurs at a high voltage trigger.
Check for loose wiring between the pc board connector
and the high voltage section by pulling on each wire.
Repair if necessary. Insure both connectors are secure
and re-test for CF fault.
Replace high voltage section or send unit in for repair.
Send unit in for repair.
Ground Fault (GF)
Over-Voltage
Fault (OU)
The Ground Fault is typically caused
by a ground connection problem, and
can create a safety hazard. It can occur
without high voltage and will not reset.
The Over Voltage Fault indicates the output
voltage exceeds the design specifications.
It typically occurs during a high voltage
trigger.
Check for loose wiring between the pc board connector
and the high voltage section by pulling on each wire.
Repair if necessary. Insure both connectors are secure
and re-test for GF fault.
Adjust the setpoint to 20kV and turn on the high voltage.
A GF fault indicates a faulty pc board - replace.
Replace high voltage section or send unit in for repair.
Send unit in for repair.
Check connections using two finger pull test to ensure
they are connected.
Replace the pc board.
Send unit in form repair.
CP-13-04.3 (10/2017)
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MAINTENANCE