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5935 4th Ave S. Seattle WA, 98108  -  (206) 767 5334
Open Monday - Friday 7:00am - 4:30pm PST

Problems With Your Fluorescent Lighting Fixtures?

Problems With Your Fluorescent Lighting Fixtures?

Here are a few things to check if you're having problems with your fluorescent fixtures.

My Fixture Hums

  • Confirm the ballast is securely attached to the fixture housing and the that the housing is securely attached to your surface.
  • It's also a good idea to verify your fixture is properly grounded
  • Leave your fixture on for 48 - 72 hours to "season" your ballast.


The Lamps Do Not Turn On

  • Confirm that all lamps are securely seated in each of their sockets.
  • Replace defective bulbs. Bad bulbs are often blackened near the ends.
  • Verify the fixtures have been wired correctly. Sometimes a connection breaks off inside the fixture and may cause an open circuit.
  • Verify the ballast voltage rating to ensure it is the same voltage as your building.
  • Use a multi-meter to verify that the ballast is receiving the correct amount of input voltage.
  • Your ballast may need to be replaced.


Lamps Blink, Flicker, Or "Snake"

  • Toggle the fixture on and off multiplr times at 30-minute intervals.
  • Observe the ambient temperature surrounding the fixture and, as needed, upgrade the ballast to one rated for your specific conditions.
  • Make sure a fan or air conditioning is not blowing cool air across your lamps.
  • Allow the lamps to "season" properly by leaving them on for 24 to 48 hours.
  • Confirm that all your wiring connections are secure, complete, and tight.
  • Verify your ballast is receiving constant input voltage by using a multi-meter to test.


For more information about fluorescent lighting?, contact Pacific Lamp.