9
Troubleshooting
Service Flow Chart
Start
Are
Lamps
Lite?
Yes
No
Continue with
maintenance per unit
instruction manual
Do you have
120V to
PCO?
NO
Yes
Check all electrical
connections, bulbs, and ballast.
Replace any burned out or
damaged components and plug
unit in.
Are
Lamps
Lit?
Yes
No
No
Are
Lamps
Lit?
Are
Lamps
Lit?
Did
Lamps
Light?
No
Yes
Continue with
maintenance per unit
instruction manual
Yes
Continue with
maintenance per unit
instruction manual
Replace
Assembly
End
End
End
End
Unplug PCO power
and immediately
plug back in
Check to see if lamps
are lit
Check power supply. (Breakers,
Plug, Electrical wiring, fuses,
and transformer) Repair
electrical and plug unit in.
