LED INDICATOR KEY
Lamp flick
ering
Err
atic s
tarting
Slo
w St
arting
Dim Lamp (Lo
w Ligh
t)
Lamp not ligh
ting
Possible Reason
How to Diagnose
• • • • •
Bad lamp
Place a known working lamp in the ballast.
If it does not flicker or have erratic start,
the original lamp is bad.
•
Lamp not installed properly
Check to see if lamp is properly and
securely installed.
• • •
Lamp / ballast incompatibility
Try another lamp brand.
• •
•
Inconsistent current
Electronic ballast: Is the line conditioned.
• •
Lamp not “burned in”
“Burn in” (run the lamp for 24 hours).
• •
• •
Old lamp/excessive use of lamp
Check the rated hours:
Has it been run 60% of the rated hours?
If yes, try a new lamp.
•
Possible wrong lamp type for
ballast
Try another lamp type or confirm proper
ballast for lamp type.
•
Incorrect wattage for ballast
Confirm proper wattage for ballast and
lamp .
• •
No power
Check circuit panel and power cord
connections.
• •
Bad fuse/circuit
If on panel, replace. If on the ballast,
replace .
•
Bad ballast (failure)
Place lamp in known working ballast.
If the lamp works, the ballast is bad.
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