Product Service 1-800-522-7658
170
PROBLEM
CAUSE
CORRECTIVE ACTION
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.
Airflow Alert
goes off and/or
there is a slight
decrease in filter
life remaining
gauge
HEPA filter loading
The gauge reading steadily
decreases as the Cabinet is used.
Blockage of the
return air slots or
grille
Check all return air slots and grilles
to ensure that they are not blocked
or restricted.
Blockage of the
Ensure that the exhaust outlet is