Labconco Biological Safety Cabinets 34269 Series - Manual (Page 59)

Chapter 7: Troubleshooting
Product Service 1-800-522-7658 53
Original instructions
PROBLEM CAUSE CORRECTIVE ACTION
Fluorescent light not
working Sash is closed Open sash – Fluorescent lights will not
work with the sash closed.
Lamp(s) are defective Replace defective lamp(s)
Lamp wiring is
disconnected Inspect lamp wiring.
Defective lamp
ballasts
Replace lamp ballasts.
Keypad disconnected
or defective
Run keypad diagnostics and check
connections.
Fluorescent light is
dim or flickering Lamp(s) are defective Replace defective lamp(s)
Lamp wiring is
disconnected Inspect lamp wiring.
Defective lamp
ballast Replace lamp ballast.
UV light not
working Sash is open Close sash – UV light will not work
with the sash open.
Lamp is defective Replace defective lamp.
Lamp wiring is
disconnected Inspect lamp wiring.
Defective lamp
ballast
Replace lamp ballast.
Keypad disconnected
or defective
Run keypad diagnostics and check
connections.
UV light is dim or
flickering Lamp is defective or
is at end of operating
lifetime. Replace defective or worn out lamp.
Lamp wiring is
disconnected Inspect lamp wiring.
Defective lamp
ballast Replace lamp ballast.