How To Replace A Ballast

An electrician is replacing the ballast on a fluorescent light. The ballast will either be on the top of this fixture or on the bottom.

How To Replace Fluorescent Lights Ballast Diy Family Handyman

If your fluorescent light just stopped working all of the sudden it could be a ball.

How to replace a ballast. Make sure that your new ballast matches the old one and install the new ballast. The electrician uses the light switch on the wall to de-energize the florescent light. First mount the new ballast with the mounting nuts then strip the electrical wiring back about a half-inch on both the new ballast wiring and the original wiring left over from the old mount.

It is simpler and faster to do the following. A professional will be able to de-charge the lighting fixture from the outlet. Support the ballast with one hand to prevent it from falling and remove its mounting nut s or bolt s with a nut driver or socket wrench.

Replace the ballast compartment cover and reassemble the light fixture. In any case it will be held on by 1 or 2 screws. In this video youll see how to replace a ballast in a fluorescent light.

Strip the wires back about half an inch. Bring the ballast with you to the store to find a suitable replacement. If you decided to replace just the ballast mounting the new one in your fixture is pretty simple.

Install the New Ballast. Use twist-wire connectors to connect the ballast wires. The diameter for the T12 is 38mm and 25mm for the T8.

Though the fix is relatively simple it is a good idea to hire a professional to replace your old ballast. Signs are a crank without a start or a start and an immediate stall. Shut off power to light fixture at the circuit breaker.

When done this way the lampholders need to be removed from the fixture. Mount the new ballast in the fixture. Strip the electrical wiring back 12 inch and connect the matching-colored wires with twist-wire connectors.

When changing a ballast it is not feasible to disconnect and reconnect the wires from each lampholder. The ignition coil cannot get proper voltage if the ballast resistor is broken. Remove The Ballast Now you must take out the ballast by unscrewing it.

Cut the wires close to the old ballast and remove the ballast. Remove the ballast from the fixture. As a matter of fact you do need a lock out tag out device in place for changing a ballast.

Now remove the fixture. Step 2 Buy Ballast. Click to see full answer.

6Reconnect The Wires Now strip out the colored insulation covering of the remaining wires. Detach the wire nuts that hold the wires from the ballast to the ones from the ceiling by turning the wire nuts counterclockwise. Because the job involves exposed wires a professional will complete it quickly and safely.

Replace the ballast compartment cover and bulbs.

Saturday Projects Com Replace Ballast On 4 Fluorescent Light Fixture Youtube