General Problem
Possible Cause
Solution
GENERAL TROUBLESHOOTING GUIDE
(Continued On Next Page)
Black Display when
from panel switch is
turned to the “ON”
position.
Motor Rotating, But
No Or Low kV Output
At Spray Gun
No AC power present
Blown or Defective Fuse
Connector 7PL not properly plugged into
main PC board
Improper input line voltage
Defective ON/OFF switch 1SW
Defective power supply 1PS
Defective spray gun or high voltage cable.
Loose or broken wire in power supply.
Main PC board defective.
Defective high voltage multiplier.
Ensure voltage across terminals L1 and N of terminal
block 1TB is between 90 and 264 VAC.
Replace blown/defective fuse
Properly attach connector.
Verify connection to the voltage across terminals L2
and N of 1TB is between 90 and 264 VAC.
Voltage across terminals 1A and 2A of ON/OFF switch
1SW should be between 90 and 264 VAC. If not,
replace switch 1SW.
Voltage across terminals 2 and 3 of plug 7PL on main
PC board should be 24 VDC. If not, replace power
supply 1PS.
Perform a Current Output Test on the power supply.
If proper readings are obtained, check cable or spray
gun for cause. (See Spray Gun’s Service Manual.)
Check all wiring connections for integrity. Repair
wiring as needed.
If spare board present, replace board or Send entire
unit in for repair.
Send entire unit in for repair.
CP-13-03-R4 (05/2020)
26 / 35
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