While simply swapping burned out bulbs in an existing ballast is deemed “ballast repair” by many – and can offer advantages in longevity and energy savings – sometimes this simple “fix” is not enough.

How can you tell if the ballast is bad?

If the ballast is good, an analog multimeter has a needle that will sweep to the right across the measuring scale. If the ballast is bad, then the needle won’t move. If you’re using a digital multimeter, often the digital readout will possibly list a “1” when it doesn’t find a measurable resistance.

What does a bad ballast smell like?

A common source of these odors is the fluorescent light ballast. When called to such an incident, you typically will find an electrical odor or a haze of smoke. Overheating ballasts often exhibit symptoms. They may cause the bulb to flicker, shine, dim, or not work at all.

Is it easy to replace a ballast?

You can get a new ballast at a hardware store or home center and install it in about 10 minutes. However, buying a ballast can be expensive, so consider pricing a brand-new fixture for comparison.

Is it hard to change a ballast?

Is it the starter or the ballast?

One prime suspect when maladies develop is the starter, a device that briefly accumulates current when the light switch is turned on, and then releases it (accounting for the momentary delay some fluorescent tubes exhibit when igniting). The other is the ballast, a transformer.

How do you fix a broken ballast on a light fixture?

Hold onto the ballast with your free hand to keep it from falling out. Mount the new ballast in the fixture. Strip the electrical wiring back 1/2 inch and connect the matching-colored wires with twist-wire connectors. Replace the ballast compartment cover and bulbs.

How long does it take to replace a fluorescent light ballast?

Replace the ballast when your fluorescent light flickers or makes an annoying hum. The repair will only take about 10 minutes. When your fluorescent light flickers or makes a loud and annoying hum, a degrading ballast is the cause.

Why should I get my light fixtures tested by an electrician?

If you feel uneasy with this kind of wire testing, an electrician can quickly test your light fixture and see if any wires need to be further examined for failure.

How to fix a light that won’t turn on?

Troubleshooting: How to Fix a Light Check Basic Settings and Bulb Quality First. Start with the easy stuff and make sure you didn’t overlook anything. Is… Take a Look at Other Appliances. Next, check other electrical appliances in the vicinity. If nothing appears to turn on… Unscrew the Bulb and