Beyond that, the three wires that go to such an outlet are the black, red and white: there is no ground terminal on a three wire dryer outlet. where can I buy that? Question: I am trying to convert my three cord dryer to a four cord, but I don't have a housing unit that the cords screw into to make a male connection. If the outlet on the wall has three prongs yet the bottom is the L-shaped can I use a 3 pound with the bottom from being flat will it still work. Stop lugging your AC adapter back and forth between home and office. Leave it where it is and add another ground wire to the frame. Answer: If the white wire goes from the center terminal to the frame of the dryer, it is the jumper discussed. I have noticed in operation manual that I can attach the ground wire to the center terminal. Turn the power back on and turn on the range to test it out. I can't seem to find a cord to go with my plug. The best option, though, might be to put in a three-wire dryer outlet rather than the range outlet. Are you absolutely positive that the pictures aren't causing confusion? Just be sure that neither one contacts the frame or wall of the dryer. Make sure to choose a plug that is suited for the cord—a grounded three-prong plug if the cord has a ground wire, a two-prong polarized plug for simple household extension cords, etc. Instead, a grounding jumper must be installed as shown and described in the article. Plus, of course, not every dryer in the country has a ground lug within an inch of the center terminal; only some of them. Answer: Impossible to say, although it is likely. Question: I changed my four prong to a three prong, hooked it up properly, and the dryer ran for 30 minutes before quitting. Answer: No. Dan Harmon (author) from Boise, Idaho on July 31, 2017: Sounds like you have an older 10-50R outlet in the wall, for a range, and it is likely on a 50 amp breaker. That IS how a three wire cord works anyway - the neutral and ground are connected inside the dryer. Thank you so much! Note: Apple USB power adapters are not affected by this program. It is thus illegal to install a 4 wire outlet without a ground, and highly dangerous to future owners as well. Many dryers are placed very close to the wall where the exhaust vent is located, requiring that the hose be badly kinked in order to hook up to it, and rigid metal elbows are available to help alleviate this problem. Hi Dan, I used your article to hook up a dryer in a rental unit that my brother moved to. You MUST have either a wire (preferably green) or a ground strap to go from the center terminal to the grounding point - the "green nail". All you are doing is providing a ground for the chassis of the dryer. Should I leave it alone since it is on the white panel outside the cover. And keep the existing 4 prong cord for when you move into a house with a 4 wire outlet. Here the four wires have been removed and a metal ground strap installed between the dryer frame and the white wire. Buy and use the adapter at your own risk; I wouldn't use it. Does that mean that my center terminal is grounded already and that I do not need to run a new jumper? Question: When removing my old four prong cord from my dryer, the white and green wires were both together on the center terminal and the red and black on the outsides. It is likely, however, that the breaker is a 50A; a dryer really should be plugged into a 30 Amp circuit. I am changing my cord from 4 prong to 3 prong. Answer: Are your connections tight? Ground straps are available from Amazon (search there for "ground strap" and short pieces of wire are usually available at home improvement stores such as Home Depot or Lowes. Is this safe to use? The red and black wires go to the outer two terminals (in the photo the dryer wires are black and blue) and the white wire goes to the terminal in the center of the terminal block. Is this correct? Customer safety is always Apple's top priority, and we have voluntarily decided to exchange affected wall plug adapters with a new adapter, free of charge. Make sure there is no chance of this, by unplugging the dryer before proceeding any further. The other wires I am attaching (that come with the cord) have a tab to screw into the bolt. Leave the existing white wire where it is; it will be used to operate the controls and needs to be there. I am having a problem similar to something someone else posted. Dan Harmon (author) from Boise, Idaho on September 24, 2017: No, but do get it done as soon as you can. Work the wire through the connector, but do not tighten it yet. Or you might be able to purchase an older 3-wire range cord to put on the dryer - they are available at Amazon and will we wired as indicated in the article. Redundant grounds can never hurt, but seldom add much, either - putting two wires where one will do fine is just such a case. Could the vent hose be a problem as well? The most common type is a clamp with two screws on the outside that can be tightened to squeeze the wire into place. Would it be ok to salvage the 3 prong cord from the old dryer and use it for the new dryers plug( the only reason I'm switching dryers is simply because I was given a newer better model) so there shouldnt be any issues with the 3 prong cord being damaged or anything like that. But nothing for a dryer. Once you have changed the wire and the dryer runs, is there a reason it will not now heat now when it did before changing the wires? The good news is that dryer cords are readily available and fairly inexpensive, and it isn’t very hard to switch them. Nor does my manual. Learn more about using Apple power adapters, cables, and duckheads with Apple products. Your choice: should you choose experience and understanding of electricity then put the ground strap in as described. Congratulations on doing your own home repair job! Question: My 4 prong cord had the green wire attached to the same terminal as the white wire. Answer: No. Question: I just got a new stackable washer & dryer. ... PRIME GENERATOR CORD "W" ADAPTER 12/3 AWG 30 AMP L530P L5-30P TWIST LOCK PLUG. Answer: Be very careful: I find lots of adapters made for welders or other 240V stuff, so they can run off the dryer outlet. Do I leave the ground strap hooked up to the white wire? Dan Harmon (author) from Boise, Idaho on October 30, 2017: It's supposed to be a #10 but, yes, a short piece of #12 will work. My outlet is 4 prongs and so is my dryer, however my dryers bottom prong is an L shape but my outlet is just straight down vertical. It's not difficult and would prevent future problems with the dryer not fitting the wall outlet. Is it still necessary to connect ground strap or jumper to neutral post? It's only a guess, though, and could be something else. So does the green and white wire go to the middle together? HOW DO I KNOW HOW TO CONNECT THE 3 WIRES CORRECTLY. The breaker is engaged, etc. There is a four prong outlet but only has 3 wires to it. I noticed when I removed the 4 prong plug. I left the grounding strap assembled and just doubled up the green and white wires on the middle terminal block position. Answer: First, you should understand that it is not legal today to put a three prong outlet in the wall; if there are four wires there, then they must all be used, and a four wire dryer cord be used to connect to the dryer. I have put the green wire back where it had been. Dan Harmon (author) from Boise, Idaho on April 08, 2018: The center wire of that flat, 3 wire, cord corresponds to the white wire of a 4 wire cord. Be aware that a 50 amp breaker will not protect a 30 amp dryer adequately. A side note - your landlord is correct in that the outlet will supply 240 volts to the dryer. Very easy to convert. New adapters are white with gray on the inside portion that attaches to the power adapter. If that cord is not obviously damaged it will be fine. So if Costa Rica grounds that neutral wire in the panel box it will work fine as far as safety goes. If you go the other way, 4 prong outlet and 3 prong dryer, you now have to connect the neutral to the ground inside the adapter and again, that isn't legal outside of a dryer that is grandfathered under the law. Where does the green wire hook to? Thanks! The neutral and ground are a few inches from each other so I need something long. I bought a drier with a 4 prone cord an had a 3 prone receptical do u need a ground to hook up for the drier to work. They're willing to make a single cord to your specification, but it costs a great deal to get a UL listing and they will lose hundreds of dollars trying to do so for each product produced. Problem is that the adapter, when 4 prong (dryer) to 3 (wall outlet), must use the ground as a neutral, and that isn't legal to do which in turn means there can be no UL label. Answer: If you are asking if you can cut off the green wire from the 4-wire cord and use it as the jumper wire described in the article when installing a 3-wire cord, the answer is yes. Question: I’m replacing a 4-prong cord with a 3-prong cord. I read your article but am still not sure. I hooked up the 3-prong to the back red wire on the top and the white in the middle, and black on the bottom. My dryer has a FOUR WIRE CONNECTION AND THEY ARE COLOR CODED I NEED TO ATTACH A 3 WIRE AND THEY ARE NOT COLOR CODE. Dan Harmon (author) from Boise, Idaho on June 17, 2017: You can do that. Mine had a green wire screwed down along with the white center wire. Even more important is its current rating: 15 Amps at 125 Volts AC. Finding your device serial number is easy. What's the deal? Surprised to hear that all your breakers are 30 amp, though, if that means for lights, regular outlets and all. Copyright © 2021 Apple Inc. All rights reserved. Dan Harmon (author) from Boise, Idaho on October 22, 2018: Leave all wires alone that are not a part of the new cord. Now if the situation with your dryer cord and outlet is backwards from this—that is, you have a three-pronged cord and a four-pronged outlet—you are looking at the wrong article. This isn't the first time I've heard that manufacturers are not including that jumper in their instructions. Dan Harmon (author) from Boise, Idaho on September 11, 2018: @Lisa: There are few adapters out there, but the biggest problem is that they are not UL listed as they do not follow current National Electric Code. Look at this article instead: Changing A 3-Prong Dryer Cord And Plug to a 4-Prong Cord. But your explanation of how the ground wire is installed needs to be clearer. Do I have to ground it to the body of the dryer, or can I just hook the new three prong cord up and roll with it? could i just cut the green wire and continue with the install of the 3 prong cord? There is no ground wire at all in the cord, unlike the 4 prong cord that was on the dryer to start with. Hi, a little bit off topic but you said that there is no adapter. Is it ok for the material between the ends of a ground strap to "hang loose" inside the panel? Older, plastic, vent hoses are not recommended as a fire hazard, and even newer metallic ones deteriorate over time. Do I attach it to the same place with the new green wire? Dan Harmon (author) from Boise, Idaho on April 23, 2018: In a 3 prong cord you have it right; the center wire is the neutral and the outer two are the black and red. Europe runs on a 240V system, which is why there is no 120V available there. I put the ground green/yellow stripe ground wire from the dryer with the white wire in the middle as instructed. Although the plugs may LOOK similar, they won't fit unless specifically made for a dryer. ONE MAN AT LOWES TOLD ME THAT I WOULD HAVE CHANGE THE PLUG AND THE SWITCH AT THE BOX AND THEN I WAS TOLD I DID NOT HAVE TO DO ALL THAT. 14/3 100ft 300V SJTW Extension Cord LIGHTED END Prong In/Outdoor Use (100 feet) $43.95. Dan Harmon (author) from Boise, Idaho on June 04, 2017: @SamB A 3 wire range cord has three straight prongs and should fit. The washer hooked up great but the dryer couldn't get set up because of the strange 3 prog plug. It's a 40a circuit on a pushamatic panel. She said she was educated in electrical things & assured me she knew what she was talking about. Could that also be a ground wire? If you have a volt meter, the voltage between either of the outside wires and the center should be 120V, with the voltage between the outside wires being 240V. Customers who purchased an Apple World Travel Adapter Kit should use one of the options above to exchange their affected three-prong wall plug adapter. The grounding strap remains in place and remains connected to the middle position. Answer: A nut and bolt is fine. Or perhaps a nearby home improvement carries ground straps? Answer: The breaker may be turned off, it isn't wired correctly, or the dryer is faulty. While Canadian 4 prong plug has 240V between two hot wires at +- 120V each, the German Schuko is 230V on one pin and neutral for the second one. The green ground jumper goes with the other end of the jumper going to the frame of the dryer. This is not the best possible arrangement, but it did provide grounding safety to the frame of the dryer via a ground jumper from the center wire of the dryer cable (that's the neutral) to the frame of the dryer. Any wires coming from the dryer mechanism should be left just as they are; simply connect the cord "ground" (or neutral if that's what it actually is) to the center terminal with a jumper to the framework of the dryer. Answer: No. Thanks for saving me from a shock. Most likely there is a spot where the old green wire went; put the second end there. Question: My dryer had two white wires along with a green, black and red where does the extra white wire go? It is taking 3-4 rounds to dry a batch of t-shirts on high! He has extensive experience in most areas of the electrical trade. Remove the cover plate from the wire terminal block, exposing the wires inside. Hi dan, i have a dryer i got from my inlaws next door, at yheir house its on a 4 prong and works great, i followed your steps and when put in my home on a 3 prong it runs for a minute and shuts off, i took it back to their house and it works just fine there, but still shuts off at my house... any idea what i might be dealing with? If you somehow hook it up using the neutral for a 240V supply you will blow out all the control structure on the dryer. It is also possible that it is not. I wondered if it originally had a three pin and the previous owners just chose to use gas? But you're on the right track; if you connect the ground wire in your cord to both ground AND the center terminal it should work. Answer: I have not found any adapters that are UL listed, meaning they do not meet the safety regulations of the National Electric Code. Most three-wire cords do not have colored wires, so instead of matching colors identify the wires using the relative position of the wires in the cord. It's good enough that when the electrical code changed it was allowed to remain in millions of homes. Question: Can you change the 3 wire outlet into a 4 wire outlet? Will that be sufficient along with the new 3 prong plug? Unless you traced that white wire on the chassis, you can't know for sure it is connected to the neutral. We encourage customers to exchange their wall plug adapter using the process below. Loose, or left off entirely. I'm removing an old dryer and replacing it with a new one.Now obviously I need to switch the new 4 prong plug to a 3 prong plug. Answer: If your cord is permanently attached to the dryer - soldered or crimped permanently in place - I'd call an electrician or an appliance repairman to install the new cord. If it is, leave it where it is and add a jumper wire or ground strap between the center terminal and the screw where that green wire attaches to the frame. I was told by the previous owner the dryer is 4 or 5 years old. And I used the range cord from the range I was taking out. Is there a workaround for this at all? There are obviously the 3 metal prongs at the top of the adapter which plug into the wall socket as expected, but I was not expecting there to also be another 4th plastic prong at the bottom of the adapter which prevents you from plugging it into any wall outlet with only one socket (so it only works on 2-socket outlets, not 1-socket outlets). How is that supposed to fit? Dan Harmon (author) from Boise, Idaho on May 14, 2019: Yes, you can purchase a replacement, 3 prong, cord. Should I be worried? Answer: The white wire in the dryer that disappears inside the dryer rather than being in the cord should stay where it is--in the center termination point. I now see even the new cord i got says range cord. You can use a #10 wire instead of a strap. May be redundant,but is it ok? In any case, however, can putting a jumper from the center terminal to the frame of the dryer cause any problems, so do that to make sure the dryer is grounded. INteresting they skip this. I got a dryer that had a four wire plug and i changed it to a three wire cause my wall was three. Question: I have a 4 wire feed (white, red, black, bare ground) in my wall for the dryer, female wall plug only has connections for 3 wires (3 prong plug) I know to hook up the ground then red and black hot wires but where does the white wire go, or can it be capped off and tucked away? Question: The white wire that is behind the white wire on the four wire plug that I am removing for the three prong plug.... can that be used for the ground wire? Just converted a 3 wire dryer plug to a 4 wire. Begin by unplugging the dryer. However, if it is, it was not legal to be there with a four wire cord! But the outlet can be changed to a 4 wire, 30 amp, dryer outlet without a problem; these are readily available at Amazon or any home improvement store. There will also be the ground wire that goes both there and to the frame of the dryer, plus the center wire of the new cord. (I checked the circuit and has a 30 amp breaker). - I just read my Whirlpool Dryer install instructions and does not mentioned anything about the ground for the 3 receptable to the dryer´s frame. Affected three-prong wall plug adapters are white, with no letters in the inside slot where it attaches to an Apple power adapter. Does it require a 10 AWG wire or can I use the copper that they have in the dryer already? Question: If there is already a ground strap on my dryer (like you have in the photo) will I still need to use a #10 wire? But there is also another white wire from the dryer attached to the center. Amazon used to carry one, and it still shows up, but has been unavailable for some time now. Question: I'm removing an old dryer and replacing it with a new one. Do not re-wire the dryer. The outlet on the wall is a 3 prong, however all of them are straight (No L shape). This article is accurate and true to the best of the author’s knowledge. Very few speakers use that large a wire, though - most systems are using 18 gauge or smaller (bigger numbers mean smaller wire). Remove each wire from the screw or stud holding it, making sure to save all nuts or screws. Question: When I did the steps my dryer shot sparks out. It sounds like moving that air filter while running is the culprit, but I certainly can't guarantee that. Dan Harmon (author) from Boise, Idaho on July 04, 2017: Yes, the neutral is connected to ground...in your panel box. After I purchase a #10, how do I situate the green ground wire on the 3-wire cord? But wait! It is curious that a four wire cord had that jumper, and that the green and white were terminated together. Is this a safe and acceptable practice / layout? This one is typical: an advertisement from China, in broken English, claiming to have a UL approval but failing to stamp it on their product as required by UL. Amazon does, I know. Dan Harmon (author) from Boise, Idaho on May 31, 2017: Michael, the only suggestion I can offer is to make very sure the normal cord pictured in the article will not work. Is it easier to just change the cord? Do not ignore this step! Changing A 3-Prong Dryer Cord And Plug to a 4-Prong Cord. I thought I read somewhere that if that green ground wire is already connecting to the neutral the new jumper might cause a problem. So would it be ok to do so? Answer: Sounds like you have swapped one of the hot wires with the neutral on the center terminal. Dan Harmon (author) from Boise, Idaho on August 27, 2017: No problem with the cord; anything 30 amp or greater will do fine as long as it matches or exceeds the breaker. As a result, contemporary 240-volt appliances, such as dryers, have four-prong plugs, while older outlets have only three. Can this be used as a ground wire? This wall plug adapter shipped from 2003 to 2010 with Mac and certain iOS devices, and was also included in the Apple World Travel Adapter Kit. My dryer had 4 plug and the green wire was with the green from plug my 3 plug as 3 wires all gray so I put middle wire in middle and other2 either side what do I do with this green wire from dryer. Link: https://www.amazon.com/dp/B07DLQDKLN/ref=cm_sw_em_... Dan Harmon (author) from Boise, Idaho on February 23, 2019: One end of the ground jumper goes to the center terminal, along with the center wire on the new cord. No grounding strap visible, but there was a green ground wire attached to dryer frame. Cheater plug adapters allow a "3-prong" grounded 5-15P plug to be mated to a non-grounded 1-15R receptacle. Everything in my breaker box is 30 AMP. Note where each color of wire terminates. Pay particular attention to where the white and green wires go. I dont know what to do next. If you have a voltmeter, each of the outside two terminals should show 120V to ground or neutral, or 240V between the two. I have a regular three prong outlet and a four prong dryer cord is there a replacement cord for that. What's up with this? Dan Harmon (author) from Boise, Idaho on October 01, 2017: As long as there is a wire from the frame to the center terminal, where the white wire was, it is sufficient. Do you have any suggestions? If you’re not comfortable with replacing the cord yourself, the technicians at Fred’s Appliance Service are available to install a new 3-prong or 4-prong cord onto your range. Please choose one of the following options below. Question: I have 4 prong wall outlet and I'm thinking to connect a European dryer with 2 prong Schuko plug. Is a 50amp range cord okay to use? If you are set on a ground strap rather than a piece of wire (a few inches of #10 wire will do fine) you might take a look at what you will need and visit an automotive parts store. I didn't notice at the time, as the gentleman at the store said it would work fine when I told him what I was doing. Or is this redundant since there would then be two such connections. The wall outlet in your photo has three strait slots (and so does mine). Now obviously I need to switch the new 4 prong plug to a 3 prong plug. Answer: Are those wires in the cord, making it a five wire cord? Would it be a missing step in the cord? You most definitely CAN change the cord, though - cords are readily available, it is a simple task and is quite legal and safe to change the cord out. Without it, if there is an electrical problem later, the frame may become energized and present a huge shock hazard.
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