How to Replace a Waste Disposal Power Cord

A garbage disposal is an essential part of many modern homes.

Not much knowledge of a garbage disposal is need to rewire the disposal. The green wire is the ground, red is positive and white is negative. On the bottom of the unit is a metal door and clamp secured to the frame of the unit that mounts the wire by a Phillips head screw. You will need to remove the unit from the bottom of the sink to complete this job correctly.

Unplug the power wire from the socket. Tap the lower metal ring counterclockwise using a rubber hammer. As you tap it, a metal lip on the lower ring will disconnect from the top metal ring.

Pull the unit from the bottom of the sink. Remove it slowly because water and food in the disposal can leak out.

Dispose of the water and food and place the disposal on a surface that is flat and that you don't mind getting water and food on. Remove the screw securing the clamp and the metal door on the bottom of the unit with a screwdriver.

Pull the door off the bottom of the unit and remove the screw that is securing the green wire to the frame using a screwdriver. Turn the plastic caps on the red and white wire counterclockwise and pull them off the wires. Pull the red and green wire connected to the cord apart from the wire connected to the unit.

Place the wire into the clamp and reconnect the green wire to the frame and the red and white wire to the corresponding colored wire on the unit. Place the plastic caps over each wire once they are connected and turn the caps clockwise until tight. Replace the unit to the sink the opposite way that you removed it.

Things You Will Need

  • Rubber hammer
  • Phillips screwdriver

Warning

  • Do not allow any of the wires to come in contact with each other at any point in this process. Doing so will cause serious electrical shock. Even if the unit is unplugged, the wires can still have electricity in them.

About the Author

Living in Tucson, Ariz., Robert Good has been writing from 2003 on a wide variety of subjects ranging from sports, gardening and cooking to auto repair, home maintenance and travel. Good holds a Bachelor of Science in psychology from the University of the State of New York.