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Home > Home & Garden > Electrical & Lighting   »   Convert Four Wire to Three wire for stove

 
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Old Feb 5, 2008, 02:55 PM
lrearnest2
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Convert Four Wire to Three wire for stove

Hi.
I had a four wire circuit from a dryer that I needed to convert to a NEMA 10-50R for my new Whirlpool electric range. I wired the new receptacle with two hots a and GROUND and capped off the neutral. I tested from the hots to the ground and I get 120V. From hot to hot I get 240 Volts.
The Whirlpool installation manual says to use the two hots and the neutral to connect the three prong pigtail to the range...(and I don't have a neutral...I have a ground).

Did I wire this correctly? Will it blow up the range? Should I rewire this circuit with two hots and a neutral instead?

Thanks

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Old Feb 5, 2008, 03:05 PM   #2  
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Use the neutral. Why only three wire cord if you have a 4 wire cable? And isn't the dryer set up for 4 wire?
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Old Feb 5, 2008, 06:49 PM   #3  
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Quote:
Originally Posted by tkrussell
Use the neutral. Why only three wire cord if you have a 4 wire cable? And isn't the dryer set up for 4 wire?
Exactly!

Many people would love to have your 4-wire (hot, hot, Neut, Grd), instead of there 3-wire (Hot, hot, neut). Use it as intended, and as required per code.
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Old Feb 6, 2008, 06:38 AM   #4  
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Sounds like a comunication problem here. Its not a 3 or 4 wire cable. Its a 3 or 4 conductor cable. The ground, not being a conductor, is not counted. A 3 conductor cable has 4 wires, two hots, one nuetral and a ground. Whats the size of the cable and the breaker. Usually dryers are wire for 30 amps. Stoves usually require 40 or 50 amps.
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Old Feb 6, 2008, 08:36 AM   #5  
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Hi Folks.

The dryer has a four wire. The stove requires a three wire (based on the cord it came with.) It DOES have four lugs, but I do not have a four lug cord, so I wanted to change it to a three wire cord.
I used the GROUND and two hots and it is working fine. As stated, I can re-wire it to two hots and a NEUTRAL if needed...I just have to re-wire the splice in the junction box. The circuit breaker is a 50A and I have three conductor, 8 guage wire (solid) going to the new receptacle. If I would have ran four wires to the new receptacle, I wouldn't have a location to land all four wires, as the receptacle only has three landings.

Make sense? Is it considered "dangerous" to use the two hots and the ground?

Thanks
LRE
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Old Feb 6, 2008, 02:17 PM   #6  
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You have a 4 wire feeder, and a 4 wire appliance, you are not allowed to convert the appliance over to a 3 wire cord, you need to install a 4 wire cord.
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Old Feb 6, 2008, 02:21 PM   #7  
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Quote:
Originally Posted by hkstroud
Sounds like a comunication problem here. Its not a 3 or 4 wire cable. Its a 3 or 4 conductor cable. The ground, not being a conductor, is not counted. A 3 conductor cable has 4 wires, two hots, one nuetral and a ground. Whats the size of the cable and the breaker. Usually dryers are wire for 30 amps. Stoves usually require 40 or 50 amps.
What?


To end this, just listen to what TK said, he's on the money!
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Old Feb 6, 2008, 02:28 PM   #8  
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Thanks for the feedback. I should ask the knuckleheads that sold me the new range to give me a four wire cord then. They gave me the three wire, hence the need to go from four wire to three wire.

I'll get on it. and re-pull with 4 wire (hot,hot,neutral,ground) and replace the receptacle on the range end with a 4 wire.

Cheers
LRE

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hkstroud agrees: If the knuckleheads knew the differance between 3-wire and 3-conductor cable you wouldn't have had the problem.
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Old Feb 6, 2008, 02:54 PM   #9  
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You took this well, good luck!
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