If there is a flickering or buzzing sound coming from the fluorescent light fixture, chances are you’ll have trouble. The within of the fluorescent tube has a element called a ballast. The ballast is surely an electrical connection that holds the fluorescent bulb in spot and supplies the electrical energy that makes the chemical compounds inside the bulb ignite. The ballast also regulates the flow of electricity thoroughly so that there’s no flickering. Test your ballast if there is certainly humming, flickering or the light does not flip on.
A)Turn off energy to your fluorescent light fixture by unplugging it or shutting off its fuse. Enable the fluorescent light to rest to get a though ahead of operating on it to allow any remaining electrical power to discharge.

B)Twist the fluorescent bulb to ensure that it releases from the light fixture. Inspect the fluorescent bulb for black marks or loose elements that indicate the bulb itself is faulty.
3.Unscrew the protective cover from the finish of your ballast and examine the exposed end for indicators of oil. Oil leaks indicate that the seal inside the ballast is broken and that this part needs to be replaced.

C)Turn the voltmeter towards the Ohms setting and touch 1 probe to your white wire as well as other probe to one of many coloured wires. You must obtain a studying of a short or maybe a continuous circuit. The ballast is damaged and has to be replaced if there is no quick or continuity.

D)Replace the damaged or faulty ballast with a new unit, twist the fluorescent bulb back to the light fixture and turn the electrical power back on. If the light fixture nevertheless hums, flickers or will not function appropriately, you may really have to substitute the bulb, as well