18
Troubleshooting Flow Chart
START
Look through the access panel
viewing port to check lamp.
Is there power to the
PCO?
Is the lamp on?
NO
Check PCO power cord for
damage and AC outlet for
power. Check breaker
panel. Repair electrical
problem and plug−in power
cord.
Is the lamp on?
Unplug power cord to
the PCO cabinet.
YE
S
Check lamp
electrical
connectors. Also check
electrical wiring from ballast
to lamp connector.
Any issues?
Plug power cord back
to the PCO cabinet.
NO
Repair Issues
Is the lamp on?
Check ballast voltages (see
table below) on red and blue
wires at 4−pin connector.
Replace any burned out or
damaged components.
NO
Is the lamp on?
NO
Continue with
maintenance per unit
installation instruction.
YES
YES
YES
NO
Is PCO power cord plugged
into AC outlet? If not, plug
PCO cord into AC Outlet.
Is the lamp on?
NO
YES
NO
YES
YES
BALLAST
INPUT/OUTPUT
WIRE/TERM COLOR
NORMAL READING (VAC)
SERVICE ACTION (See “Figure 12. PCO
Wiring Schematic” on page 8.)
OUTPUT
RED
>60
Replace ballast if less than 60VAC.
RED
>60
BLUE
>200
Replace ballast if less than 200VAC.
BLUE
>200
Figure 19. Troubleshooting Flowchart
