OLD 220V to New OVEN (no ground)


Old 05-04-07, 12:37 PM
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Join Date: Apr 2007
Posts: 2
Exclamation OLD 220V to New OVEN (no ground)

I am in the process of updating my kitchen in a house that was built in 1957. The existing 220v oven wire looks to be in good condition, so I was considering using it to hook up my new Jenn_Air Pro Oven. It would reduce the level of work needed to introduce a new 220v wire with a ground. The pro oven requires a ground wire with the 220V. What is the best way to solve this problem? New wiring?
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Old 05-04-07, 12:41 PM
Join Date: Sep 2003
Location: Central New York State
Posts: 13,973
Yes, the best way to solve the problem of a missing ground wire is to rewire the entire circuit with new wire that includes a ground wire. in this case that would be probably 10-3 or 8-3 (each with ground).
Old 05-04-07, 02:53 PM
Join Date: Apr 2006
Location: New Bern, NC
Posts: 1,623
While it is true, that the code does allow the three wire circuits for ovens to be grandfathered, it also requires that we install appliances in accordance with the manufacturer listing and labeling.

The owner's and installer's manuals are considered to be part of the mfg listing and labeling. If it says in there that you need a seperate ground wire, then you must follow those instructions.

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