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A four blade dryer plug cord should have a red, black, white, and green wire in the cord set. The red and black wires are the ones that deliver the 240 volts to the dryer. Black and white deliver control 120 volts to the dryer and also drive the motor to turn the dryer drum. On some dryers they use the red and white for the motor and black and white for the control. As for the green it is always the ground wire.

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Q: Which colors are hot on a 4 prong dryer cord?
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When connecting a 4 prong cord to a new dryer red and black are hot What are the green and white wires?

Green is ground and white is neutral.


What is the extension cord with 3 prong could be used for?

Depends on the size of the wire in the extension cord. The 3 prong is just the hot, neutral, and ground.


Is the wide side of a 2 prong cord hot or ground?

ground


What is wrong if you changed a four prong to a three prong and the dryer is not heating?

My question is WHY did you replace a four prong dryer plug with a three prong! 220 volt Electric dryers require two hot legs, a neutral and a system ground wire. Sounds as though you shunted one of the hots or the neutral. You need to install a four prong plug of the same configuration and wire it exactly as the original.


Is it possible to put a 4-prong plug on a dryer that uses a 3-prong plug and how would you do this?

If you are viweing this because you want to change the newer 4-prong plug/outlet to fit an older 3 prong outlet/plug don't do it! The newer plug is safer and the 3 prong plug no longer meets code. See the discussions in other threads. all you need to do is hook the two hot leads on the outer terminals, then the nueatral, white wire on the center terminal and the green ground wire to the ground screw. Be sure to remove the bonding jumper that ties the neutral to the chassis. This is no longer needed as now you have a ground line from the outlet. There should be 3 insulated lugs in the dryer, two hots and a neutral. Connect the red and black wires in your new cord to the hot lugs (red & black are interchangeable), and the white neutral to the neutral lug. Neutral is the center wire on your older 3-wire cord, for reference. Connect the green ground wire directly to the chassis of the sryer using a convienent screw. Use the four prong cord if you can. It is safer because it has the extra ground wire which older cords did not.

Related questions

When connecting a 4 prong cord to a new dryer red and black are hot What are the green and white wires?

Green is ground and white is neutral.


What is the extension cord with 3 prong could be used for?

Depends on the size of the wire in the extension cord. The 3 prong is just the hot, neutral, and ground.


Is the wide side of a 2 prong cord hot or ground?

ground


What is wrong if you changed a four prong to a three prong and the dryer is not heating?

My question is WHY did you replace a four prong dryer plug with a three prong! 220 volt Electric dryers require two hot legs, a neutral and a system ground wire. Sounds as though you shunted one of the hots or the neutral. You need to install a four prong plug of the same configuration and wire it exactly as the original.


Is it possible to put a 4-prong plug on a dryer that uses a 3-prong plug and how would you do this?

If you are viweing this because you want to change the newer 4-prong plug/outlet to fit an older 3 prong outlet/plug don't do it! The newer plug is safer and the 3 prong plug no longer meets code. See the discussions in other threads. all you need to do is hook the two hot leads on the outer terminals, then the nueatral, white wire on the center terminal and the green ground wire to the ground screw. Be sure to remove the bonding jumper that ties the neutral to the chassis. This is no longer needed as now you have a ground line from the outlet. There should be 3 insulated lugs in the dryer, two hots and a neutral. Connect the red and black wires in your new cord to the hot lugs (red & black are interchangeable), and the white neutral to the neutral lug. Neutral is the center wire on your older 3-wire cord, for reference. Connect the green ground wire directly to the chassis of the sryer using a convienent screw. Use the four prong cord if you can. It is safer because it has the extra ground wire which older cords did not.


How do you know which wire is the positive or negative on a grey three pronged cord that you have to connect to a garbage disposser?

all wires should be color coded, that is black-hot, white-neutral, green-ground. national electrical code been in use since the dark ages. if the wires are not colored, take a continuity tester, test from the cord cap to each wire on the opposite end of the cord. the larger straight prong on the cord cap is the neutral, mark it with white tape, the smaller straight prong [parallel to the larger prong] is the hot, mark it black. the " u "shaped prong is the ground wire, the mosat important of the 3. mark it green. on the continuity tester, the light on the tester will light when you touch the correct prong to the correct wire


How do you put on a four prong outlet on a roper electric dryer?

Black & Red are hot, and White is neutral. If it has no place to connect neutral connect neutral to ground.


Three prong dryer that was converted from a 4 prong dryer you need to convert it back to a 4 prong?

The second ground prong grounds the frame and shell of the dryer. You can attach it anywhere on the frame if there is not a specific terminal for it, or just ignore it. The two hot and 1 ground should let it function. Do not ignore the green wire or grounding conductor. Remove the bonding jumper from the neutral terminal (grounded conductor, white wire) that bonds the neutral to the metal frame. The screw on the metal frame of the dryer the bond strap connects to is where you want to land the green wire. Save the bond strap you might have to convert it back to three wire in the future.


On three wire spin dryer cord which color green white?

On a 3 wire dryer cord there is no green wire. The white wire coming from the outlet is connected to ground or the green screw. The black and red wires are the hot wires.


I am changing a 3-prong to a 4-prong on a Speed Queen dryer. There is no indication as to color-coding for the wiring. Also there are 2 green screws instead of one. How do I decide which wires to hook?

The forth wire is to ground the body of the dryer. The cord should have red, black, white, and green wires. Red and black are hot, the white is neutral, and green is ground. The red, white, black in that order or reversed, black white, red, should go in a row where they connect to the dryer with the green one probably above it. If the center neutral lug has a bond to the chassis remove it. You have a dedicated wire to replace it now.


What do the letters stand for on a 4 prong plug?

On a 240 volt outlet, such as a dryer outlet: G is Ground, W is Neutral, X and Y are the two Hot legs.


How do you change a 4 prong cord to a 3 prong cord on dryer?

I needed that answer years ago and was told that the two outer wires are the hot leads and can be interchanged on the two outer lugs on the machine, the center wire is your neutral and needs to be attached to the center lug( the neutral lug on the machine is almost always silver, the hots are brass color) it's really simple once you know,outer to outer, center wire to center lug.