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These two pictures illustrate the power wiring on a the terminal of an electric dryer. The one on top is the old-style three-wire configuration. Most people have this type in their homes. New code changes, though, require that dryers now have a four-wire cord, shown on the bottom. Besides the number of wires in each cord, there are two important things to notice. First, in the four-wire configuration, notice that the dryer's grounding strap is folded back on itself. The whole point of the four-wire cord is to separate the ground from the neutral. The green wire (the "new" extra wire in the four-wire cord) is attached to the dryer cabinet. In the three-wire configuration, the grounding strap is left intact and the neutral and ground are tied together.
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Hi,
White, green green/white striped they are all the same....only thing you really have to worry about is that you have the red and black in the proper places...
Here is a tip that will help you with changing your dryer plug.
Dryer Cord and Wiring Dryer 3 Wire or 4 Wire
The
4-prong plug has red, black, white, and green/yellow wires while the
3-prong plug has red, black, and white wires. The only difference is the
green/yellow (ground) wire of the 4-prong plug which is attached to the
dryer cabinet. All you have to do is connect the wires of the 3-prong
plug in the same way the same wire colors are connected with the 4-prong
plug then connect the terminal on the cabinet, where the green/yellow
(ground) wire of the 4-prong plug is formerly connected, to the white
wire of the 3-prong plug.
The red and the black are interchangeable, they are your hot wires, but the white must go on the white that is your neutral wire. Let me explain the green wire. That is your ground. In the past the dryer would use the neutral as its grounding means if something in the dryer ever shorted out (which is a very unsafe situation), so now they decided to separate the wires and have that green wire as the ground wire which is also why there is a 4th prong on your plug. So to hook that up you need to remove the jumper that may be going from the neutral bar to the frame. There is usually a terminal for that ground wire, but if there is not you need to attach that green wire to the frame of the dryer (metal screws usually do the trick, you can also use a screw and bolt if you can find a piece of frame inside the wiring compartment).
4 PRONG PLUG WIRING: 2 HOTS(RED&BLACK) 1 NEUTRAL(WHITE) 1 GROUND(GREEN). 3 PRONG PLUG WIRING: 2 HOTS&1 NEUTRAL. YOU MUST USE 2 HOTS & 1 NEUTRAL ON A 3 WIRE PLUG. THE GROUND WIRE(GREEN) WHICH IS HOOKED TO FRAME OF THE DRYER IS NOT USED ON OLDER 3 WIRE PLUGS. IT IS AN ADDITIONAL SAFTEY GROUND ON NEWER MODEL 4 WIRE PLUGS.
disconnect the green or brass ground strap from the terminal block to the body then wire the new plugs three colors the same as the old then connect the green from the plug strait to the body. on a 3 wire the dryer is grounded through the neutral, on a 4 wire the ground goes to the body.
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