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for USA, Canada and countries running a 60 Hz supply service.The 4 wire plug has a ground connection and the 3 does not.

3 wire plugs are old and outdated. Way back in the old days they didn't ground equipment so plugs didn't have a ground. (Remember the old 2 wire 110V outlets on houses built before the 50s?) A few people got killed so they decided to add a safety wire. It took them longer to catch on with heavy appliances, but eventually they did. That is what the fourth pin is for. Since many homes still have the 3 wire plug it is allowed in older homes. New homes must use the new 4 wire plug.

Changing your 4 wire cord to a 3 wire cord is the same as plugging a 3 wire 120V appliance into one of those 3 prong to two prong adapters they sell. Your appliance works now, but is ungrounded.

Don't listen to anyone who says to replace the new up-to-code plug with an older plug. That is the same as replacing your 3 prong 120V outlets with old two prong outlets! Ignore anyone who tells you to do so, they think they know a lot more than they actually do. Buy a new cord. It is cheap and safer.

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Although configuration of the plugs are not universal, NEMA has a huge listing of plugs and receptacles. Once you know which one you need, all you have to do is rewire it. Your old range didn't have have ground (bare or green wire, which only carries current in a fault situation). The new one you have purchased does. Although you do not have to hook this wire up for the range to operate, there is a severe risk of electrical hazard. The best advice anyone can give you is that you must run a new power cable to the range's location, one that includes a ground wire. This is a lot of work, but it has to be done for the installation to be safe.

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[Note: don't do this! See the first answer to this question!]

This may or may not be allowed by the electric wiring code operating in your town or location - it is best to check with the appropriate electrical safety officer in your locality before you do any of this: Change the cord on the new range to a three wire cord. Buy a new three wire cord for the receptacle configuration that you have. Remove the four wire cord from rhe range, taking note where and how the wires are attached, especially the white wire and the bare or green wire. Attach the red and black hot wires to their respective terminals. Attach the white neutral wire to its terminal and use a ground jumper (bare copper wire #10 gauge) to attach the frame of the range back to where the white wire is attached.

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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

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โˆ™ 2015-07-15 18:28:50
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Q: How do you change a four prong appliance to work on a 3 prong outlet?
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Related Questions

How do you change a four prong appliance to work on a three wire line?

have sexual intercourse with the four prong appliance... just joking, actually it's not possible unless you change the circuit configuration for a four prong appliance


Dryer outlet is four pronged and angled and dry cord is three pronged how do you make it work?

If the outlet at the wall is a four-prong type, change the cord on the dryer to a four-prong (30-ampere rated)


Can you plug a four prong dryer into a three prong outlet?

no


How do you plug in a four prong cord into a 3 prong outlet?

You dont.


What is the most cost efficient and quick way to fix the problem if you have a stove that has a four-prong cord and an outlet that only takes three prongs?

buy a 3 prong cord and plug set at lowes or home depot and change the cord on the appliance.


Can you safely change a four-prong electric dryer outlet to a three-prong 240V air conditioner outlet?

No. Call an electrician. 50 dollars is cheap compared to having your dwelling burn up.


How do you change a 4 prong 220 outlet to a 3 prong 220 outlet for a stove?

US NEC: You don't. If the stove has a four prong outlet, it is probably used in a mobile home application. Per the NEC, in a mobile home configuration for a stove you must maintain the ground separately all the way back to the distribution panel.


Can you plug a four prong dryer into a three prong outlet or is there an adapter you should use?

The best thing to do would be to replace the outlet with a four prong outlet. That way you get a separate equipment ground which is required by the newest code. Otherwise you could replace the cord on the dryer with a 3 prong cord, and connect the ground and neutral together in the dryer, but this is no longer recommended.


How do you connect two three prong outlet to four prong transfer switch?

There is not enough information stated as to what you are trying to do.


How do you adapt a 3 prong range cord to a 4 prong outlet?

To adapt a three prong range cord?&aelig;to a four prong outlet you need to remove the screws from the back plate to open the electric access panel. Then, pull out the copper grounding strip attached to the middle terminal. Next, remove the green ground screw from under the terminal block and attach it to the four prong outlet.?&aelig;


Is there an adapter for a four prong outlet?

Need more information e.g. voltage, amperage rating.


How do you wire a 3 prong 240V outlet?

Explain what you mean by "3-way outlet". I've heard of 3-way switches, but not 3-way outlets. I would guess the person asking the question is asking how to wire a three-prong socket, as opposed to a four-prong socket...


If you have a four-prong 240V outlet can you switch the outlet to a three-prong 240V outlet?

The 4 prong receptacle should be more in line with the latest wiring code. It is best to change the plug or the cord on the appliance you wish to use. If you have a 4 prong outlet, the purpose is to isolate the neutral from the ground.There are numerous examples mentioned in Wiki s but they all amount to requiring that there be no link between the neutral terminal of the device [appliance] and the frame.It is, however, allowed [by the NEC, unless disallowed locally by the "authority having jurisdiction"] to install a link to the neutral terminal from the chassis if there is already a three prong outlet existing.ALWAYS CHECK WITH YOUR LOCAL WIRING SAFETY OFFICE BEFORE YOU ATTEMPT TO CHANGE ANYTHING ON POWER MAINS OUTLETSIF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.If you do this work yourself, always turn off the powerat the breaker box/fuse panel BEFORE you attempt to do any work ANDalways use an electrician's test meter having metal-tipped probes(not a simple proximity voltage indicator)to insure the circuit is, in fact, de-energized.


Can you plug a three-prong dryer into a four-prong outlet or is there an adapter you should use?

Yes. The adapter is a new power cord. Your new home has a modern plug which is safer, and you can easily upgrade your appliance in under a half hour and under $30 in parts. Get a new cord and follow your dryer's instructions.


What if you have four wires running to your dryer outlet and the outlet is only a three prong one wire is just hanging out is this really even safe?

Have the outlet changed to match the configuration of the dryer plug.


How do you change a four prong stove to a 3 prong?

A four prong plug typically involves two hots, one neutral, and one ground. The four connections are unavoidable and a three connection changeover will likely render it unsafe.


If a new electric range has a 4 prong cord but the outlet is 3 prong can you get an adaptor or does the outlet or cord need to upgraded or replaced?

You should install a four prong. The older ones were three prong and had no ground. An adaptor isn't made because it wouldn't fix the problem. You could make your own adaptor and cut the ground off with a pair of dykes, but don't.


How do you change the plug on your clothes dryer cord from three prong to four?

You have to go buy a new four prong chord, unscrew the base of the old chord, and switch them out.


How do you change a three prong appliance to work on a four prong socket outlet?

For USA, Canada and countries running a 60 Hz supply service.It is a very good idea to change a three prong appliance to work on a four prong socket outlet because the four-prong design is a much safer electrical system, but you should not be thinking of doing it yourself unless you have been trained how to work safely on electrical power services.The fact that you have asked this question here means that you may not have the necessary experience.Dryer or range plug three to fourYes this is possible and for safety's sake highly recommended. Instructions should come with the new cord. Open up the electrical access panel on the back of the appliance. You will see a terminal block with three wires going into it from the existing plug cord assembly. A red and black and white are now connected to the terminal strip. Look at the position and colours of the existing 3 prong cord and how it is connected. Make a diagram. Coloured wires on the outside terminals white in the center. From the center wire terminal you will see a jumper strap that goes to the frame of the appliance. When installing the new four prong plug this jumper is removed completely. The kit should have with it a grounding lug that connects to where the removed grounding strip attached to the frame of the dryer. This is the attachment point for the fourth green ground wire from the new dryer cord assembly.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.


How much does it cost to change a three prong outlet into a four prong outlet?

It all depends on if you have only 3 wires in the wall. If that is the case a new four wire circuit will have to be ran which will cost you more depending on how hard it will be to get the wire to that part of the house. Electritions are typically about 75 bucks an hour depending on where you live. You'll have to just make some calls and ask. If its just for a dryer most have option to put a three wire pigtail cord on your new dryer


How do you put on a four prong outlet on a roper electric dryer?

Black &amp; Red are hot, and White is neutral. If it has no place to connect neutral connect neutral to ground.


Can you use a four prong dryer cord with three prong plug?

No you can't.Sorry


How do you change a four prong cord to three?

Answer for USA, Canada and countries running a 60 Hz supply service.Three-wire outlets are now obsolete so don't change anything on the appliance.You should change the outlet to the correct 4-wire kind but it must be done correctly and safely. So don't attempt to do it if you don't know what you are doing.Call in a licensed electrician to install a new circuit for you with the right sizes of circuit breakers, the right size of wiring, a GFCI if necessary and the right type of outlet to supply your new appliance which has a four prong cord.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.


How do you change from a four prong dryer cord to a 3 prong cord?

Install the 3 prong cord by connecting the two hots and the neutral to the three main lugs. Then add a piece of copper grounding wire from the neutral lug to the ground lug.


How do you run 4 prong 240 volt outlet?

you must run the proper size wire based on the ampacity needed, wire must have four conductors including the gound