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Trying to install 3 way cord with a 4 way replacement cord. I have disconnected all wires and put them back. My question is concerning the white wire.The wires that are already connected to the dryer red, black and white are disconnected except the white wire. Can I leave the white original wire still plugged in and place the new white wire together or should I connect all wires together red with red black with black and white with white. It seems that the three wires are connected to the dryer plus the 3 way cord ,which came off easy. I put this in this way dryer doesnt work

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In a three wire system you have 2 hot wires (black and red) and a neutral (white). the ground is connected to the neutral at the dryer. In a 4 wire system you have the 2 hot wires, neutral, and a ground. (green). The ground is connected with the neutral at the circuit panel. The hot wires at the dryer should be on the outside scres, the neutral should be in the center and the ground should be under the green screw. *****. .

Posted on Sep 23, 2008

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I need to change my 3 prong to a 4 prong


Unplug the dryer then remove the terminal block cover and disconnect the 3-prong cord from the dryer. Note that the cord has red , black, and white wires but sometimes the red and black wires are both replaced by same color wire, usually gray and can switch places. There's also a ground strap wire also connected to the center terminal together with the white (neutral) wire.

Get yourself a 4-prong cord and note that it has red, black, white, and green/yellow wires but sometimes, like the 3-pronged one, the red and black wires are both replaced by same color wire, usually gray and can also switch places. All you have to do now is connect the 3 wires in the same manner they are connected as 3-prong cord to the terminal block. The ground strap wire now just need to be connected to the remaining 4th wire, the green/yellow wire instead of the center terminal together with the white (neutral) wire. Reinstall the terminal block cover and it's done.

It can be observed that converting a 3-prong cord to 4-prong cord is merely splitting the neutral line and the ground thereby increasing the number of prongs from 3 to 4 whereas, on the other hand, converting a 4-prong cord to 3-prong cord is merely joining the neutral line (white) and the ground (green/yellow) thereby reducing the number of prongs from 4 to 3.. The links below might enlighten you further on this matter.

Four-prong to Three-prong Electric Dryer Conversion
Three-prong to Four-prong Electric Dryer Conversion

Aug 21, 2011 | Kenmore Dryers

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3-prong to 4-prong Power Cord Conversion.


This advice is on how to correctly install an ELECTRIC DRYER or ELECTRIC RANGE 220-240VAC power cord (US Standards).

3-Prong or 4-Prong – The Difference:

3-prong color code:

BLACK (HOT – 110-120VAC) – May also be referred to as L1
RED (HOT – 110-120VAC) – May also be referred to as L2
WHITE (NEUTRAL – 0VAC) – Usually grounded to the equipment frame via a jumper wire or metal strap.

4-prong color code:

BLACK (HOT – 110-120VAC) – May also be referred to as L1
RED (HOT – 110-120VAC) – May also be referred to as L2
WHITE (NEUTRAL – 0VAC) – DO NOT ground to equipment frame.
GREEN (GROUND) – Attach to equipment frame.

Which One to Use: According to the National Electrical Code (NEC), Article 250, installations after the year 2000, require the use of a 4-prong plug which incorporates a separate ground and neutral wire. If you currently have a home that uses the 3-prong receptacle and cord, you can continue to use it. You will have to upgrade to a 4-prong configuration, however, if you plan on relocating your current receptacle, or if the internal wires of the receptacle become damaged in any way and require repair.

Converting from 3-prong to 4-prong: Make sure you UNPLUG the appliance prior to any repairs. CAUTION: Voltages dangerous to life are still present even with the appliance turned off and still plugged in. Notably in the area of the terminal block where the power cords are installed. You will need to remove the old cord by following these steps:

  1. With the appliance UNPLUGGED, remove the access panel on the back of the unit where the power cord enters.
  2. With the cover removed, you will see a terminal block where the power cord is attached. The terminal wires will be colored with the WHITE wire in the middle, and the BLACK and RED wires on either end. NOTE: There should be a green jumper wire or metal bonding strap attached to the NEUTRAL (white) terminal wire.
  3. Remove the terminal lugs holding the old power cord wires in place. CAUTION: Use care not to drop any nuts or screws inside the appliance.
  4. Remove the bonding strap or ground wire from the Neutral terminal lug. NOTE: If disconnecting a ground wire, make sure you re-attach it to the appliance frame.
  5. Loosen the screws on the strain relief connector that holds the power cord in place and remove old power cord. NOTE: If your appliance does not have a strain relief that clamps down and hold the power cord in place, it is highly recommended that you install one. This prevents chaffing of the power cord against the appliance casing, and prevents the terminal wires from being pulled and broken loose. This could pose a potential shock hazard or cause damage to the appliance.
  6. Install new power cord by threading it through the strain relief connector and tighten down the screws.
  7. Connect the new power cord to the corresponding colors at the terminal block (Black goes to Black, Red goes to Red, White goes to White). The difference is going to be a Green (ground) wire that will connect to the appliance frame. There’s usually a green grounding screw for this. NOTE: If you disconnected a green grounding strap in Step 4., you can connect these two wires at the same point.
  8. Re-install access cover. Turn off the service breaker to the appliance PRIOR to plugging it back in. With the breaker in the off position, plug the appliance in, and THEN turn the breaker on. In the event, something was wired incorrectly, it is far better to have your hands away from the receptacle and controlled from a distance. Safety first.

on Jul 16, 2008 | Whirlpool LER5636P Electric Dryer

1 Answer

I have a four prong clothes dryer plug that needs to go in a three prong outlet - 220v. Any ideas?


It's either you convert the 3-prong outlet to 4-prong or the 4-prong cord to 3-prong. But the latter is easier and more feasible. Unplug the dryer then disconnect the 4-prong cord from the dryer. Note that it has red, black, white, and green/yellow wires but sometimes the red and black wires are both replaced by same color wire, usually gray. The red and black wires are lines L1 and L2 reversibly, meaning they can switch places, while the white and green/yellow wires are the neutral line and ground, respectively.

Get yourself a 3-prong cord and note that it has red , black, and white wires but sometimes, like the 4-pronged one, the red and black wires are both replaced by same color wire, usually gray and can also switch places. All you have to do now is connect these 3 wires in the same manner they are connected as 4-prong cord to the terminal block. The wire strapped to the dryer cabinet and connected to the green/yellow wire of the 4-prong cord wire is now left hanging. The last step is to connect this hanging strap wire to the same terminal on the terminal block (center) where the white wire (neutral) is connected and it's done.

It can be observed that converting a 4-prong cord to 3-prong cord is merely joining the neutral line (white) and the ground (green/yellow) thereby reducing the number of prongs from 4 to 3. On the other hand, converting a 3-prong cord to 4-prong cord is merely splitting the neutral line and the ground thereby increasing the number of prongs from 3 to 4. The link below might enlighten you further on this matter.

Electric Dryer Prong Conversion

Aug 20, 2011 | Maytag Dryers

1 Answer

Schmetic for roper dryer - need drawing showing set up for installation '


Are you trying to connect your power cord to back ? Dryers are all about the same. But all new dryers are designed for 4 wire plugs .. If you have a three wire plug or cord the white connection and the green ground connection go togather on the center ground wire to your 3 wire plug.

May 30, 2011 | Whirlpool Dryers

3 Answers

I have a 3 wire dryer and need to convertto a 4


The following link explains how to correctly install a 220VAC appliance cord:

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

Match the corresponding colors at the terminal block, making sure the Neutral (White) and Ground (Green or Bare Copper) wires are NOT terminated together.

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

Feb 03, 2010 | Kenmore 62602 Electric Dryer

1 Answer

Trying to replace a three prong electrical cord with a four prong one.


Dryer wiring (3 wires to 4) If ya move or get a new dryer and need a 4 wire setup instead of a 3 this might be of interest: Look at the terminal block. Most dryers have a red wire on one side, a black wire on the other side, and a white wire in the middle. I put my red to red white to white and black to black as pictured in the above link. The green ground wire gets bolted to the frame.


Dec 26, 2009 | Maytag MED5770TQ Electric Commercial Dryer

2 Answers

Dryer outlet does not have common wire.


You can replace the 4 prong with a three prog cord found at Lowes etc.

First, disconnect the black wire, one of the "hot" connections, from the left side post by removing the terminal screw. This is one-half of the 240-volt connection.
Next, disconnect the red wire, another of the "hot" connections, from the right side post by removing the terminal screw. This is the other half of the 240-volt connection.
Then, disconnect the white wire from the center connection. It is used for the neutral connection.
Now, disconnect the green wire from the machine case by unscrewing the green screw.
The next step is critical to return your electrical connection to factory condition before installng the 3-prong cord! Locate the white machine wire that is now connected to the neutral (center) screw terminal. Disconnect it from there and install it under the green ground screw.Connect the outer two wires (hot wires) to the outer two screws, obviously, one on each screw.
Now connect the center wire (neutral) to the center post. You'll notice the white machine wire is now the case ground connection, unlike the 4-prong cord connection in which the green wire from the cord makes the ground connection.

Sep 10, 2009 | Dryers

1 Answer

Switching to a 3 wire plug from a 4 wire plug for maytag dryer. what do i do with green ground screw


This advice is on how to correctly install an ELECTRIC DRYER or ELECTRIC RANGE 220-240VAC power cord (US Standards).

3-Prong or 4-Prong – The Difference:

3-prong color code:

BLACK (HOT – 110-120VAC) – May also be referred to as L1
RED (HOT – 110-120VAC) – May also be referred to as L2
WHITE (NEUTRAL – 0VAC) – Usually grounded to the equipment frame via a jumper wire or metal strap.

4-prong color code:

BLACK (HOT – 110-120VAC) – May also be referred to as L1
RED (HOT – 110-120VAC) – May also be referred to as L2
WHITE (NEUTRAL – 0VAC) – DO NOT ground to equipment frame.
GREEN (GROUND) – Attach to equipment frame.

Which One to Use: According to the National Electrical Code (NEC), Article 250, installations after the year 2000, require the use of a 4-prong plug which incorporates a separate ground and neutral wire. If you currently have a home that uses the 3-prong receptacle and cord, you can continue to use it. You will have to upgrade to a 4-prong configuration, however, if you plan on relocating your current receptacle, or if the internal wires of the receptacle become damaged in any way and require repair.

Converting from 3-prong to 4-prong: Make sure you UNPLUG the appliance prior to any repairs. CAUTION: Voltages dangerous to life are still present even with the appliance turned off and still plugged in. Notably in the area of the terminal block where the power cords are installed. You will need to remove the old cord by following these steps:



  1. With the appliance UNPLUGGED, remove the access panel on the back of the unit where the power cord enters.
  2. With the cover removed, you will see a terminal block where the power cord is attached. The terminal wires will be colored with the WHITE wire in the middle, and the BLACK and RED wires on either end. NOTE: There should be a green jumper wire or metal bonding strap attached to the NEUTRAL (white) terminal wire.
  3. Remove the terminal lugs holding the old power cord wires in place. CAUTION: Use care not to drop any nuts or screws inside the appliance.
  4. Remove the bonding strap or ground wire from the Neutral terminal lug. NOTE: If disconnecting a ground wire, make sure you re-attach it to the appliance frame.
  5. Loosen the screws on the strain relief connector that holds the power cord in place and remove old power cord. NOTE: If your appliance does not have a strain relief that clamps down and hold the power cord in place, it is highly recommended that you install one. This prevents chaffing of the power cord against the appliance casing, and prevents the terminal wires from being pulled and broken loose. This could pose a potential shock hazard or cause damage to the appliance.
  6. Install new power cord by threading it through the strain relief connector and tighten down the screws.
  7. Connect the new power cord to the corresponding colors at the terminal block (Black goes to Black, Red goes to Red, White goes to White). The difference is going to be a Green (ground) wire that will connect to the appliance frame. There’s usually a green grounding screw for this. NOTE: If you disconnected a green grounding strap in Step 4., you can connect these two wires at the same point.
  8. Re-install access cover. Turn off the service breaker to the appliance PRIOR to plugging it back in. With the breaker in the off position, plug the appliance in, and THEN turn the breaker on. In the event, something was wired incorrectly, it is far better to have your hands away from the receptacle and controlled from a distance. Safety first.

These steps will work for nearly all appliances that require a 220-240VAC power cord conversion. The power cords are usually rated at 250VAC, 30 amps, and are carried by any hardware store or appliance parts retailer.

ADDITIONAL NOTES:


  1. If you desire to convert an appliance from a 4-prong to a 3-prong, make sure you reconnect the bonding strap and/or ground wire to the Neutral (white) wire at the terminal block.
  2. On some newer appliances, it is REQUIRED that you use a 4-prong plug in order for the timer or clock circuits to function properly due to the way they are configured. Refer to your owner’s manual for the correct recommendation. Even if you currently have a 3-prong receptacle, you still may be required to upgrade to a 4-prong if you encounter this situation.
  3. In many circumstances, new appliances are NOT sold with the power cord due to the various power configurations in homes. Always refer to the contents description on the shipping container the appliance comes with to see what additional items or tools may be required for installation.

Aug 03, 2009 | Maytag Dryers

1 Answer

Wire 3 prong cord


Electric Dryer How To Hook Up Cord pixel_trans.gifFor Three Prong Cords
the Center cord wire goes on the center terminal,
the left on the left ,
and the right on the right.

Note: There should be a ground strap or wire that runs from the center terminal to the dryer case.

For Four Prong Cords
the White cord wire goes in the center,
the Red on the Right,
the Black on the Left.
The green cord wire goes to the case or the external ground screw.

Note: Be sure to disconnect the ground wire or strap that runs from the center terminal to the case. In this Photo (A Whirlpool Dryer) I have ran the wire that runs from the center terminal, the Light Green wire, back to itself rather than cutting it off, just incase I need to put a 3 prong cord back on it some day. The whole purpose of this 3 prong / 4 prong thing is it separates the neutral from the ground. pixel_trans.gif pixel_trans.gif3 Prong Cord Whirlpool Dryer Example terminalblock.jpg 4 Prong Cord Whirlpool Dryer Example 4prongcord_small.jpg

Jul 02, 2009 | Maytag Neptune MDE5500AY Electric Dryer

1 Answer

Electric cord


What you should get is a new 4 wire cord. It is way less complicated than trying to change out the wall receptacle.
On a 4 wire dryer cord you have White(common) in the middle. Red and Black are hot and go on either side of white. If you really want to make it look good you can put red to red on the terminal and black to black but you don't have to. Some dryers may not have those color hot wires. Green hooks to the chassis with a green screw or any screw connected directly to the frame.

Jul 21, 2008 | Kenmore 62802 Electric Dryer

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