.How Fix Fluorescent Light Fixtures
SYMPTOM CAUSE CURE
Lamp won't light Tube burned out (blackened ends) Replace tube
Improper installation Take out and install again
Fuse blown circuit breaker Replace reset
tripped
Starter burned out Replace starter
Dirty tube (rapid-start only) Remove tube, wash, rinse, dry,
and replace
Tubeholder broken Replace tubeholder
Fixture too cold Raise temperature least 50°F
Oxide film buildup tube pins Rotate tube tubeholders once
_______ ___ twice
Lamp flickers Poor contact with tubeholders Realign tubeholders; straighten
(Note: New tubes may and sand tubeholders necessary
flicker short time Improper installation Take out and install again
after installation... Replace tube
(blackened ends)
Oxide buildup tube pins Rotate tube tubeholders once
or twice
Fixture, too cold Raise temperature least 50°F
Ends tube are Tube almost worn out Replace tube
discolored
(Note: Darkened
bands about inches
from ends are normal...EngineeringEBooksPdf...)
If preheat type Defective starter Replace starter
with new tubes
Discolored Temperamental tube Remove tube; turn end for end
one end only
Ends tube glow, but Defective starter Replace starter
center doesn't Defective ballast Replace ballast
Lamp fixture hums Ballast incorrectly installed Check wiring ballast diagram
and correct
Wrong type ballast Check wattage and type; replace
ballast
Defective ballast Replace ballast
120 POWER SOURCE
STARTER
COVER PLATE
o
BALLAST
LAMP SOCKET
WIRE NUT
www..com
.....) Tube nearly worn out ...
