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Tom Totanes Posted on Nov 29, 2014

How do I pair a three wire source to a four wire outlet for my electric dryer?

I paired the white to white, black to black, green to green and skipped the red since no red wire from source. The dryer and control runs but no heat.

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thegetzit

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  • Posted on Nov 30, 2014
thegetzit
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The difference between the 4 wire plug and the power source wire is that the plug has and additional seperate ground wire. Basically ttwo legs, a neutral and a ground. Your power source wire only has the two legs and the neutral (the white) which used to act as a ground. Notice that the white (neutral) is hooked up to the ground bar along with the grounds in the panel box. The "correct" thing to do is replace the wire from the panel box with the correct size/amperage wire.

5 Related Answers

Anonymous

  • 5911 Answers
  • Posted on Sep 01, 2008

SOURCE: changing a 3 prong dryer cord to a 4 prong dryer cord??

The information you need is provided in the following link:

http://www.fixya.com/support/r793520-3_prong_4_prong_power_cord_conversion

Read through the information carefully and if you need any further assistance, please let me know. I hope this helps.

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docjohn174

john gagnon

  • 943 Answers
  • Posted on Oct 12, 2008

SOURCE: Maytag dryer MDE4000AYW change 3 prong to a 4 prong

HI thanks for your question. the red to red black to black white to white green goes to the fram of the dryer. thanks hope i was helpful. please rate my answer.

Anonymous

  • 1122 Answers
  • Posted on Oct 15, 2008

SOURCE: hooking up the four prong cord to the dryer

this is the rule of thumb,white always goes on the middle terminal ,the 2 outside terminal wires it does not matter which side they are on,if you can see the red and black wire on the terminal block then match them up,the green wire gets mounted to the cabinet,you should already have a green wire to the cabinet so remove the screw and put both wires there and your done,let me know how you do-mike

Anonymous

  • 5911 Answers
  • Posted on Jul 17, 2009

SOURCE: I need to change the dryer power cord on my Amana

The two wires on either side of the power cord are your HOT leads. They are the voltage carrying conductors. These two wires will connect to the terminal block on the RED and BLACK wires. The middle wire is NEUTRAL and goes to the WHITE wire at the terminal block. Now...with a 3-wire configuration you will need to connect a grounding strap to the neutral wire and ground it to the grounding lug of the appliance. The following link explains:

http://www.fixya.com/support/r793520-3_prong_4_prong_power_cord_conversion

The main difference between 3 and 4 wire configuration is how the neutral and ground wires are installed. In a four wire configuration these two are independent of each other. In a 3 wire configuration ground and neutral are connected together.

If you have any questions about this repair, please ask me. I hope this helps you.

VtToolMan

Mark

  • 704 Answers
  • Posted on Sep 29, 2009

SOURCE: Trying to set up electrical outlet for a whirlpool

NEVER, put the green ground wire under the same screw or fastener as the white (neutral) wire! It is not Code and the reason is that if the connection becomes loose or gets burned off, you would have an ungrounded 220V-AC circuit that would use YOU or someone else as the path to clear any ground fault situation.

The correct way is to mount a separate Grounding termination with either the factory green gronding screw (if provided) or by drilling and tapping a hole next to the power terminals, (away from them so as not to make accidential contact) and install a green grounding screw for the cord set's ground wire.

Any other advice is dangerous and can lead to electrocution, injury and death!

Hope you find this Very Helpful and best regards!

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1answer

Can u help me please we're do the brown grey and white with pink line wires go

Four-Wire: Green

The green wire is the ground wire, and it is the difference between a three-wire and a four-wire cord. (In the three-wire system, the ground wire and the neutral wire are the same.) The green wire connects to the dryer frame. Look at the cord-connection terminals on the back of the dryer. Very close by, you should see a screw sticking out of the metal panel. It will be labeled "external ground connector" or something similar. Connect the green wire to that screw.

Four-Wire: Black

Most appliances in your house run on 120 volts of electricity, some on 240 volts. The dryer needs both--240 volts to run the drum and heating element, and 120 volts to run the timer, thermostat and other components. For this reason, the dryer cord has two live or "hot" wires--one black, one red--rather than a single hot wire. The dryer draws 120 volts from each hot wire to get the 240 volts it needs for the heavy work, then pairs one hot wire with the neutral wire for the 120 volts to run the smaller functions. Look again at the connection terminals on the back of the dryer. There should be three screws in a horizontal row. Connect the black hot wire to the terminal on the left.

Four-Wire: Red

Connect the other hot wire, the red wire, to the terminal on the right. (In truth, you could connect either hot wire to either hot terminal, but it's standard procedure to put the black on the left and the red on the right, so do so.)

Four-Wire: White

The white is the neutral wire, and it connects to the center terminal. There may be a metal strap attached to this terminal. That's a ground strap. When a three-wire cord is attached, it serves the same function as the ground screw mentioned above.

Three-Wire: Gray

If you have a three-wire cord, then all three wires will be gray. They're arranged side-by-side with the hot wires on the outside and the neutral wire in the middle. Attach the hot wires to the left and right terminals and the neutral wire to the center terminal. Make sure the ground strap is attached to the center terminal.
Nov 20, 2012 • Dryers
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I am replacing the single toggle light switch in the bedroom entry (formerly connected to wall outlet) and have a new dual toggle or tandem switch I need one switch to power the ceiling fabn and the...

Joan, In the box where you are placing the switch, you should have three pairs of wires. Each pair should have a black wire and a white wire (plus each pair should have a bare ground wire). One pair of wires goes out to the bedroom entry. Another pair goes out to the closet light. The third pair should be coming from your electric panel and provides the power - this is the hot pair. First determine which pair is the hot pair. If you don't have a meter or tester, you can temporarily connect each pair in turn to a lamp and turn on the power. Repeat until you find the pair coming from the panel. Turn off the power. Now take note of the four screws on the switch. Two of the screws on one side may have a small metal bar connecting the two screws together. With the power off, connect the black hot wire to one of these two screws. If there is no metal bar you will have to use a short jumper wire between two screws on one side of the switch to connect them together. Connect one other black wire to either screw on the other side of the switch. Connect the last black wire to the last screw. (There is also probably a green screw by itself. Connect one of the ground wires to this, and wrap the other two ground wires tightly around the ground wire you connected to the green screw.) Now connect all three white wires together (not to the switch) with a wire nut. Install the switch in the box and turn on the power. Please vote if you found this helpful. Good luck, and be safe, Al K
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You are going to have to abandon one of the wires and probably change your outlet to match your cord. I would abandon the red wire. You will have to do this in the breaker panel itself. If you are not familiar or comfortable working in this panel then don`t. If you are then only connect the white and black wires to the breaker that feeds your outlet and your green will be your ground which should already be connected to the ground bar. It is possible that the black and red wires are already connected to the breaker and the white to the neutral bar (this is the way it should have been wired for four wires). If this is the case just remove the white wire and tape it off and don`t use it in your new outlet.
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Just moved and outlet for dryer is different.

Connect the red, black, and white wires of the new cord to where the red, black, and white wires of the original dryer wires are connected to but disconnect the ground wire (green/yellow wire attached to the cabinet) from where the white wire is connected to and connect it instead to the fourth green/yellow wire of the new cord.
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I need to switch my three prong power chord to a four prong

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Elkectric dryer won't start

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