Never plug in a dryer cord unless it's fully connected to the dryer. Plugging in a cord sends volts of electricity to the bare wire ends of the cord. If the ends touch together or touch you, they'll create a potentially lethal short circuit. Make sure the dryer is unplugged from the electrical source, then remove the metal plate covering the cord's wiring connections on the back of the dryer. It should be directly above the place where the cord comes out.
Use a magnetic screwdriver or nut driver or socket wrench to remove the plate's screws. With magnetic tools, you're less likely to drop screws inside the dryer. Remove the screws on the strain-relief fitting that secures the cord to the back panel of the dryer. Separate the two halves of the fitting and pull them out of the hole one at a time. Disconnect the old 3-prong cord by removing the three screws or nuts with studs, as used in some cases securing the wire ends to the dryer's terminal block.
The two outer terminals are the hot terminals, and the center terminal is the neutral. Pull the cord out through the hole to remove it from the dryer. Disconnect the dryer's neutral wire from the ground screw to convert the wiring configuration from 3-prong to 4-prong. You may have one of two different configurations:.
Install the new 4-prong cord by inserting the loose wire end through the hole in the dryer's back panel and making the following connections:. Tighten each terminal screw firmly, and double-check them to make sure they are tight. To install a new strain relief fitting, first slip the tab of the top half of the fitting and position the saddle semi-circle of the fitting over the top of the cord.
Do the same with the bottom half of the fitting below the cord. Squeeze the two halves together sometimes it helps to use pliers to gently squeeze them together , and secure the halves with the fitting screws. Snug the screws so the cord is held firmly but is not deformed by the pressure. Your old strain-relief fitting probably won't work for your new 4-prong cord.
A 3-prong cord typically is flat, while a 4-prong cord usually is round and requires a fitting with a rounded area in its center. Do not use a strain-relief fitting that doesn't fit the cord. Reinstall the cover plate with its screws. To test the dryer for proper operation, check the dryer's control knob s to confirm that everything is in the off position, then plug the dryer into a 4-prong dryer outlet.
Run the dryer for a few minutes to make sure everything works. Be sure to connect the dryer vent duct if you removed it or if it's a new installation before using the dryer. Actively scan device characteristics for identification.
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Select personalised ads. Apply market research to generate audience insights. Measure content performance. These fittings typically have a top and bottom half. Remove the screws from the fitting and separate the two halves. Insert the tab of each half into the dryer cord hole, so it is flat against the inside of the dryer panel.
Fit the two halves over the cord and reinstall the fitting's screws. Tighten the screws so the cord is held firmly, but make sure the fitting does not deform the cord or pinch the insulation.
Set the cover plate into place over the terminal block, and secure it with its mounting screws. Make sure all dryer controls are off and plug in the dryer to the four-slot outlet. Turn on the dryer and test it for proper function. If you happen to have an older three-slot dryer outlet, the electrical code does allow you to install a three-prong cord to fit that outlet.
The installation process is much the same as for four-prong cords with one exception:. In the dryer's wire connection box, there must be a metal jumper between the center neutral terminal and the ground terminal. NC Amendment Actively scan device characteristics for identification.
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Develop and improve products. List of Partners vendors. Project Overview. Featured Video. Materials UL-listed, four-prong dryer cord must match amp rating for dryer and outlet; most are amp Strain-relief fitting must be an appropriate size and shape for the cord. Tip There should be no wire or metal tab connecting the ground screw to the center neutral terminal on the terminal block. Tip Make sure to connect the dyer's vent duct before using the dryer to dry clothes.
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