Many offices and home workshops use fluorescent lights. They are more efficient than incandescent lights, and they provide plenty of light---until something goes wrong, that is. And unfortunately, a lot more things can go wrong with fluorescent lights than with incandescent bulbs.

Power Problems

Sometimes, the simplest solution solves a problem, and that's often the case with fluorescent lights. The most common issue with fluorescent lights involves power. First, check to make sure the light is plugged in and its switch is in the on position. Also check to make sure that a circuit wasn't tripped. If this is the case, other electrical devices in the immediate area should also have no power.

Manual Assistance

Some fluorescent lights have a preheat fixture that requires manual assistance to start. These are usually on smaller-length lamps. They need to have the power switch pushed in and held for a couple seconds before the light comes on.

Bulb and Starter Problems

Make sure the bulb and starter are properly seated in the socket. Although they may look like they are in position, it is possible that they aren't making proper contact in the socket. They could have been knocked out of place with a vibration or bump. Turn the starter clockwise to lock it in the socket. Also, make sure you have a starter that is rated for the size light you have. There is always the chance that the starter or the light is worn out and needs replacing.

Ballast Problem

Ballasts on fluorescent lights sometimes fail and must be replaced. If there are multiple ballasts and none work, the problem is probably electrical.

Bad Wiring

Bad wiring is a less common cause of light failure. But it is a possibility, especially if work has recently been performed on the fluorescent light.

Source:

Fluorscent Light Troubleshooting

Fluorscent LIght FAQs

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