I plan on purchasing a new washer and dryer. My old dryer has the 3 prong outlet. From what I understand, the newer models have 4 prongs. My question is this: “Do I need to replace the wire that runs from my breaker box to the outlet, or, will I just be replacing the outlet?”
New dryers do not come with a cord.
You will have to buy a new cord or remove the cord from your old dryer and install in on your new dryer.
If the cord is old you maybe best to spend the money on a new three wire dryer cord.
[QUOTE]My question is this: “Do I need to replace the wire that runs from my breaker box to the outlet, or, will I just be replacing the outlet?”
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Your new dryer may come with a isolated frame ground, ie, power ground not shorted to the frame.
If you just wire it up with a three prong pigtail, you will have no protection from an internal short, ie, you just might get a dangerous shock!!
For safety reasons,it’s best to use the four prong pigtail. New dryers have wiring instructions for this printed on the back panel.
The 4 wire pigtails protect you in case of a lightning strike by grounding the frame to solid earth ground at a water pipe and routing the power ground to the power ground connection at the fuse box. One thousand amps running through ground during a lightning strike will elevate your dryer frame to 1000 volts, assuming one ohm resistance!!The four wire pigtail will prevent this.
To do this, you will need to rout a new dryer cord from the dryer wall outlet, to the fuse box.
What!?, a new dryer without a ground to the frame?
That would be a first for me and I have been putting dryer cords on for over 20 years. If the dryer is new I don’t believe it would come without a grounded frame.
If the dryer is used then you would need to check to make sure.
What brand of dryer does not come with a grounded frame? Not Whirlpool, Frigidaire, Maytag or LG.
pattyman,
If you unsure just ask the place you are getting the appliances from to install a new three wire dryer corder on your new dryer for you. It should take them all of two minutes to do that for you.
If the dryer had a 4 wire pigtail installed, the frame would not be connected to the power ground.
But you are all ignoring the first question, is it better to have a 4 wire pigtail and I said yes, for safety reasons. It is ALWAYS best to tell anyone what is best and WHY.
Sure in many cases I run across a 3 wire pigtail and the customer deals with it rather than spend the extra money for a 4 wire connection to the fusebox.
You have a very simple solution: a new dryer comes with the complete installation instructions which explains how to use both 3 and 4 prongs connections. Just follow the instructions and you are going to be fine.