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Hook up a 4 prong plug in the back of a 3 prong series 90 dryer. What wire go to which screw?

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If its a four prong cord your wires should definitely be color coded. There should be a black, red, white, and green wire. Since the dryer was a 3 prong wired dryer originally your going to see a terminal that is (or was if it was removed already) jumpered to the frame of the dryer using a piece of metal. Your going to remove that piece of metal. Now the one terminal (not the frame) will be where you connect your white wire or neutral. The other terminal the the neutral terminal was jumpered to is where you will connect your green or ground wire. This allows for the dryer to separate the ground terminal and and neutral terminal in case of ground fault situation. There will be only two terminals left which are your hot terminals for the black and red wires. Order on these hot terminals doesn't matter however I recommend to keep it neat you don't cross any wires and keep each hot wire on the side it falls on.

Posted on May 14, 2010


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Want to switch a 4 prong plug to a 3 prong plug on a kenmore 90 series elec. dryer

ok,, easy one,, unplug, take the cover off of the terminal cover,, take your old cord off, on the 4 prong you will have a red, black, white,and green wire,, matche the colors up red on right, white in middle, black on left, the green wire will go on a green screw that is near the terminal block with a white wire going to it, take the white wire off and put it with the white wire on the terminal block,, screw the green wire to the green screw,, and relpace cove and your done

Jan 19, 2011 | Kenmore Dryers

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Hook up a 4 prong plug in the back of a 3 prong series 90 dryer. What wire go to which screw?

white in the middle,red on one side black on the other just like the three prong and the green just has to be grounded to the back of the dryer,remove a screw close to the block as long as the wire reaches and connect the ground wire or green wire to the screw and screw it back in

Mar 20, 2010 | Kenmore Dryers

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Brand new dryer threw braker twice, then no heat and timer stopped working. Electrician tightened connections on wires to dryer settings dial, had heat for one load, then same as before. Replacement dryer...

might want to check your dryer outlet. If the terminals are loose in there it could cause you problems. If your dryer plug is a 4 prong you might be loosing one of your 220v legs due to a short . As the dryer runs the wires and connections will heat up and expand , if there is a faulty wire or connection then it may loose connection after a load. could be quite dangerous and a very possible fire risk so i would check it out ASAP . if the outlet is old they sell for about $20 at you local home depot or lowes home improvement. for a 3 prong plug you need to hook up the black and white wires on the brass screws and the copper ground wire to the green screw. in a 4 prong application you hook up the black and red wires to the brass screws, the whit wire t the silver screw and the copper ground wire to the green screw .

If your new dryer is supposed to be a 4 prong plug and you have it with a 3 prong cord then you will run in to issues . The difference being a 4 prong electric dryer is a dual voltage unit where it needs both 220v and 115v to operate correctly, where a 3 prong dryer only has 220v and the earth ground. if your not familiar or comfortable with electricity please call a qualified electrician to come hand handle the work. if not done correctly it can cause fires or possible electrocution

Oct 30, 2009 | Amana NED5500TQ Electric Dryer

1 Answer

How do i hook up my dryer from a 3 prong to a 4 prong


Remove old cord from back of dryer. Make note of where white, back and red wire hook to on piece of paper.

New cord has 4 wires. looking at the back of dryer,

RED Wire, should have been tied to terminal screw on right side,

WHITE Wire, should have been tied to center terminal,

BLACK Wire, should have been tied to left terminal,

Remaining wire is GREEN, attach to body ground screw located next to cover plate, screw is generally painted green. IF not attach to unit body.

Oct 01, 2009 | GE DCVH515EFWW Electric Dryer

1 Answer

Changing from 3 prong to 4 prong cord

The white wire goes in the middle between the 2 hot wires. 0c0b03b.jpg

If you need further help, reach me via phone at

Mar 19, 2009 | Dryers

2 Answers

Kenmore series electric dryer need to replace 3 prong w/4 prong

The following link explains how to convert a 3-prong appliance cord to a 4-prong and vice-versa:

If you still have questions, please let me know. I hope this helps you.

Feb 15, 2009 | Kenmore 62802 Electric Dryer

1 Answer

4 prong to 3 prong

connect green wire back to cabinet rear at green a 4 wire hookup the green wire from the dryer was supposed to be either cut off or attached back to neutral(center screw)

Oct 24, 2008 | Roper REX4634KQ Electric Dryer

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