I am installing a double oven. The wires from the oven are red, black, white and a ground. The wires in the junction box are two black and a ground. All are 220V/240V.

What wire gets connected to what?

  • Unfortunate that appliance designers keep using 120V components in 240V appliances (which is the only reason it would need a white wire at all) given the availability of 240 clocks, etc. to serve the rest of the world market.
    – Ecnerwal
    Aug 4, 2015 at 18:58

1 Answer 1


You will need to replace the wire from the electrical panel to the junction box. Your new oven requires a neutral (white) wire to power some 120v electronics in it. Your existing wiring doesn't have that - it just has two hot wires for 240v.

  • @AloysiusDefenestrate yes, indeed it does. Editing...
    – Grant
    Aug 5, 2015 at 13:51

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