I purchase a 4 ring dryer plug replacement

4-WIRE SYSTEM CONNECTIONS

Remove the ground strap screw from the terminal block support. Fold the ground strap over so both ends of the ground strap will be attached to the center terminal block post.

Connect the neutral (white) conductor of the cord to the center (silver) post of the terminal block. Connect the grounding (green) wire of the cord to the terminal block support using the ground strap screw.

Connect the red and black wires of the cord to the outer posts of the terminal block.

Be sure the terminal block nuts are on tight. Secure the power cord in position. Tighten the strain relief screw(s) in order to clamp the strain relief to the cord. Replace the terminal block cover.

https://www.manualslib.com/manual/809274/Maytag-Neptune.html?page=8#manual

All domestic dryers have a 3 screw terminal block which you connect the cord to. 3 wire cords connect the outer wires to the outer terminal screws, with the center wire connected to the center terminal block screw. 4 wire cords connect with the red or black to either outer terminal screw, the white connected to the center terminal block screw, and the green to the adjcent cabinet screw usually green in color.

It is your responsibility

To contact a qualified electrical installer.

To be sure that the electrical connection is adequate and in
conformance with the National Electrical Code, ANSI/NFPA
70-latest edition and all local codes and ordinances.
The National Electric Code requires a 4-wire supply
connection for homes built after 1996, dryer circuits involved
in remodeling after 1996, and all mobile home installations.
A copy of the above code standards can be obtained from:
National Fire Protection Association, One Batterymarch Park,
Quincy, MA 02269.

To supply the required 3 or 4 wire, single phase, 120/240 volt,
60 Hz., AC only electrical supply (or 3 or 4 wire, 120/208 volt
electrical supply, if specified on the serial/rating plate) on a
separate 30-amp circuit, fused on both sides of the line. A
time-delay fuse or circuit breaker is recommended. Connect
to an individual branch circuit. Do not have a fuse in the
neutral or grounding circuit.

Do not use an extension cord.

If codes permit and a separate ground wire is used, it is
recommended that a qualified electrician determine that the
ground path is adequate.
Electrical Connection
To properly install your dryer, you must determine the type of
electrical connection you will be using and follow the instructions
provided for it here.

If local codes do not permit the connection of a neutral ground
wire to the neutral wire, see "Optional 3-wire connection"
section.

This dryer is manufactured ready to install with a 3-wire
electrical supply connection. The neutral ground wire is
permanently connected to the neutral conductor (white wire)
within the dryer. If the dryer is installed with a 4-wire electrical
supply connection, the neutral ground wire must be removed
from the external ground conductor screw (green screw), and
secured under the neutral terminal (center or white wire) of the
terminal block. When the neutral ground wire is secured under
the neutral terminal (center or white wire) of the terminal block,
the dryer cabinet is isolated from the neutral conductor.

A 4-wire power supply connection must be used when the
appliance is installed in a location where grounding through
the neutral conductor is prohibited. Grounding through the
neutral is prohibited for (1) new branch-circuit installations,
(2) mobile homes, (3) recreational vehicles, and (4) areas
where local codes prohibit grounding through the neutral
conductors.

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



heatman101

Hi, and yes you can, its done all of the time. You want to change the plug on the wall, not the cord. That is the way it is done. Very simple. Turn off breaker to the 4- prong. Go to any hardware store such as home depot and get the 3 prong 220 volt female plug, both are the same volts, just made for different cords is all. The male is on the cord. On the 4 prong female plug thats on the wall, just loosen all 4 screws. 2- wires are hot, either black in color, a black with a piece of white tape on it is the neutral, and a bare ground which is much smaller. When installing the 3 prong female, you will use all 4 wire to. 2- hot, ! neutral, and a screw for the small bare ground. There will be a drawing on how to connect the wires with the new plug if you are not sure. Normally, there are 3 black wires, 2 hot , 1 neutral. Some times there may be 2 blacks and 1 red. A black and red will be hot.I am sure they will all be black. The plug is marked on it. It will have L-1, L-2, N, and Ground. When you remove the 4 prong female, it will be marked the same. Be sure the power is off! L-1 and L-2 are hot, and the 3rd is N or neutral. Then the small ground. Very, very, simple to change and to know which is which. The terminals on the plug are colored also. The 2 that are copper colored are for the hot wires. The brass or silver is the neutral. And you will see the ground screw. I hope I haven't confused you, it is very easy. Just when removing the wires to the old plug on the wall, which should be a 4-prong female, the 2 wires on the right and left side of the plug are going to be the 2 hot wires. The other large black is the neutral goes to top or bottom, its marked like I said with a N. and a small bare ground. Always change the plug on the wall to fit the dryer from 3 to 4, or 4 to 3. They are both 30 amp plugs, 220 volt. Very easy, you can do this!! Please rate me on my help to you.
Sincerely,
Shastalaker7

The following link explains how to properly convert a 3-prong power cord to a 4-prong:

http://www.fixya.com/support/r3575913-installing_a_220_vac_appliance_cord

The main difference is how the Neutral and Ground wires are terminated. In a 4-wire configuration, the Ground and Neutral are INDEPENDENT of each and are NOT terminated together.

Match the correcsponding wire colors at the terminal block and make sure the grounding strap (if installed)on the Neutral (White) terminal is removed. The ground wire will be connected separately to a ground lug on the equipment cabinet.

NOTE: If the wires are not color coded, the outer two wires (left and right) are the HOT leads. The center conductor is Neutral.

If you have any questions, please post back and let me know. I hope this helps you.

Yes, the following link explains how:

http://www.fixya.com/support/r3575913-installing_a_220_vac_appliance_cord

The main difference is how the ground and neutral wires are terminated. In a 3-prong configuration, the two wires are terminated together at the terminal block via a ground strap wire. If your wires are not color coded, the outer two wires (left and right) are the hot leads, the center conductor is neutral.

Read through the information provided and let me know if you have any questions. I hope this helps you.

If your dryer has only 3 terminal block with a 3 wire cable as in picture on the left. And you want to add a 4 wire cable you can do one of two things
A). install the green wire to the center terminal block as Neutral (white wire) is not used. or
B.) Remove or lift the copper ground strap from the center terminal and install the Neutral (white) wire. The green wire then goes to the metal dryer enclosure. See Right picture.

Hello wgirdler,
While it is preferred to upgrade the receptacle to a 4-prong type (which includes Neutral & Ground) Code requirements grandfather in 3-prong receptacles in older homes. So if your preference is to remove and replace the power cord on your dryer, make sure you get one that is designed for a dryer application and is 10/3 type. ( 10 Gauge wire with 3 conductors)...
Unplug the original 4 prong plug from the receptacle and pull the dryer away from the wall to gain access to the back of it.
Next, loosen the cord clamp that allows the cord to pass thru the back panel and into the druer compartment.
Open the access cover to where the end of that cord is terminated on a terminal block of the dryer.
Note which color is attached to which terminal ( red to red,black to black, white to white and green to green)...
3 Prong cables do not use a ground wire ( green) in the cord so you would wire the red to red, black to black and white to white ( The red and black are the power conductors and the white ..which is normally terminated between them.. is in the middle. You can get a seperate insulated conductor wire and route it from the ground stud of the dryer to the receptacle metal casing but do this with power disabled at the circuit breaker box...
Hope this helps.
Regards,
Rick

doesn't matter both are 110v lines but if you want look up to top screw connections the wires coming to those screws are also colored as long as the red and black are to outside screws dryer will work ok