How to Install a Cord on a Four-Prong Dryer

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A four prong dryer cord will contain four wires inside the overall protective plastic outer coating. On the ends of each individual wire, a brass colored metal loop is employed to make the connection to the dryer's electrical connections. Installing the cord is a very straightforward process. The tools required for the job are basic. Typically a Philips head screwdriver and a pair or pliers are the only tools needed for performing this task in less than a half an hour.

Things You'll Need

  • 4-prong dryer cord
  • Pliers
  • Philips head screwdriver
  • Remove all electrical power that is feeding electricity to the dryer's main plug receptacle. This may entail shutting off the circuit breaker, or pulling the fuses for the supply power to the dryer circuit.

  • Locate the main electrical connection box on the rear of the dryer. The small metal cover may have the words "electrical connections behind this panel" printed on the cover.

  • Remove the single bolt that is securing the cover to the rear panel of the dryer by using the pliers. Turn the bolt head in a counter clockwise direction. Set the bolt and the metal cover to the side.

  • Identify the following electrical connections that are now exposed to you. There are three electrical connectors on a black plastic insulating base. Each connector will have a nut and a washer. The fourth electrical connection will be large green colored screw. This green screw is the electrical grounding screw. The green screw will be mechanically connected to the metal frame of the dryer.

  • Connect the wires from the four-prong plug to the dryer in the following manner. Remove the green terminal screw from the frame of the dryer using the Philips head screwdriver. Turn the screw head in a counter clockwise direction to loosen and remove. Fit the brass colored loop connector of the green wire on the cord, through and under the screw. Fit the screw back into the hole. Tighten the screw with the screwdriver in a clockwise direction.

  • Remove the nut and washer on the center bolt of the black plastic terminal strip. Take the white wire on the dryer cord and slip that brass loop on to the bolt. Cover the brass loop with the washer first. Start the nut on to the connector bolt. Tighten the nut and washer over the brass loop of the white wire with the pliers.

  • Connect the black wire from the dryer cord to the connector on the far left of the black plastic terminal strip in the same manner as described in step 6 above.

  • Attach the red wire with the brass loop under the right hand side connector. Make sure all of the nuts and washers are tight.

  • Replace the metal cover over the electrical connection area. Plug the four-prong dryer cord into the four-prong receptacle. Turn the power back onto the dryer's electrical circuit. Turn the dryer on to test.

Tips & Warnings

  • Never install or service any electrical device with the electricity still on to that device. Working on any electrical product while still energized can lead to serious burns and injury.

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