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Wiring new oven

933 Views 7 Replies 5 Participants Last post by  afjes2015
I am replacing a wall oven. The new oven has 4 wires (black, white, red, bare). The wall has 3 wires (black, white, bare). The directions show how to wire to a 3 wire, but their diagram shows a black, white and red at the wall. I read that 240 doesn’t have a neutral. Is the white wire from the wall live as well as the black? If so, I am guessing black to black, red from oven to white at wall and white and bare from the oven to bare at the wall. Any help would be appreciated.
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If you new oven has a white wire it is a 120/240 device not a 240 only device. There should be a label on the oven that confirms this.

I have bad news for you, you cannot use the existing wiring. The 3 wire method they describe requires 2 hots and an insulated neutral. You have 2 hots and a bare ground. The cable needs to be replaced with a 3 wire (plus bare ground) cable. The wire size depends on the amps the new oven requires.
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