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 TM 5-683/NAVFAC MO-116/AFJMAN 32-1083
Table 9-1. Lamp Trouble-Shooting Guide.
I
I
PROBABLE CAUSE
REMEDY
TROUBLE
Fluorescent Lamp Equipment
Lamp pins not
Seat lamp firmly and
Lamp fails to start
contacting.
correctly.
or flashes on and
off .
Replace with tested
Starter defective
starter
Low line voltage
Match lamp rating to
line voltage or
increase line voltage
Fault in circuit of
Check wiring and lamp
holders. Check
luminaire
ballast
Shield lamp from
Low temperature of
drafts. Enclose lamp
surrounding air
to conserve heat.
Maintain voltages
within the rated
voltage range of the
lamp. Use thermal-
type starters.
Ground the fixture
Poor ground on rapid
start ballast
Lamp at end of life
Replace with tested
lamp
Lamp flickers,
Cold or too rapid
Allow a new lamp to
swirls, or
starting
operate a few hours
flutters.
for seasoning. Turn
off a few moments -
then turn on. Change
lamps and, if flicker
remains, replace
starter.
End of map glow
Poor ballast
Check ballast
Replace starter
Faulty starter
Check wiring and
Improper wiring or
ballast for ground
ground
Lamp darkens early
Replace starter
Improper starting
in life
Low line voltage
Increase voltage
Poor lampholder contact
Seat lamp firmly in
lampholder.
Check ballast and
wiring
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