Replace Light Fixture Junction Box

Cover the switch with tape to make sure it doesn t get turned back on while you are working image 1.

Replace light fixture junction box.

Turn off the power. Unscrew the screws or nuts holding the fixture base to the ceiling box. To correct it add a box extender. Broken plastic electrical box swing clamp supports allowed the box to fall from the ceiling leaving the light fixture hanging by its electrical wires.

Attach the wires from the new fixture with wire nuts to the corresponding wires in the electrical box. Ceiling light boxes consist of metal or plastic boxes. Pull the electrical cable that s hanging from the ceiling through a knockout hole in the back of the box. Before replacing a light fixture check your electrical circuit panel to locate the circuit.

Remove the old fixture. If the junction box is recessed more than 1 4 in. Repair a broken plastic electrical box mounted in a ceiling or wall this article describes how to repair a ceiling light fixture electrical box that was falling out of the ceiling. Install a surface mount box remodel junction boxes aren t intended to use outdoors so if you want to install a spotlight on the porch screw a surface mount box to the siding.

Remove screws securing the fixture to the ceiling box and lower the. Remove the light bulbs from the fixture. From the surface of the wall or ceiling you ve got a code violation. This is common when a layer of drywall or wood was installed over the original ceiling.

Secure the base or canopy. Once the box is in place install the crossbar that comes with the light fixture connect the wires and secure the fixture to the crossbar. If your light fixture pulls out from the ceiling chances are that the light box has cracked. Lower the fixture base and remove the electrical tape or wire nuts from the black hot wire white neutral wire and if present green ground wire.

How to replace electrical box for ceiling light. Install a plastic old work ceiling junction box if your fixture weighs 10 pounds or less. We use an old work electrical box to replace a damaged or loose.