Wall Oven Hookup

[DRP6833]

I need to replace our double wall oven. The one we're looking at requires the junction box to be at the top of the cabinet. I haven't pulled the old one out yet to see where the box is currently, but if it's at the bottom of the cabinet, can I get away with running a section of cable to a new box or do I need to pull new cable all the way back to the electrical panel? If I can get by with a splice, what should I use to join the wires? Would wire nuts appropriate for the wire gage be acceptable or is there something else I should use?

 

[wyliesdiesels]

I need to replace our double wall oven. The one we're looking at requires the junction box to be at the top of the cabinet. I haven't pulled the old one out yet to see where the box is currently, but if it's at the bottom of the cabinet, can I get away with running a section of cable to a new box or do I need to pull new cable all the way back to the electrical panel? If I can get by with a splice, what should I use to join the wires? Would wire nuts appropriate for the wire gage be acceptable or is there something else I should use?

Thats a loaded question

Does the new oven require the same size circuit as the one you have now?

Does it need a neutral and if so does the existing circuit have a neutral?

What size wire/circuit do you have now?

notwithstanding those questions, yes you could extend the circuit by running a new piece of wire from the existing junction box up to a new junction box. put a cover plate on the existing junction box. wire nuts should work just fine for this.

 

[DRP6833]

Thanks, you bring up some good questions I hadn't thought about. I'll verify the breaker size today and the wire size (I should be able to trace it in the basement). Just knowing I can extend the circuit and not have to run new wire is a load off my mind.

 

[DRP6833]

Good thing I checked, I need a 40A circuit and currently have 30A. Time to call an electrician.

 

[wyliesdiesels]

What size wire do you currently have? If its #10, then yes youll need a new circuit. If its #8 on a 30a breaker, then just change the breaker. But also make sure theres a neutral if you need one

 

[u2slow]

Good thing I checked, I need a 40A circuit and currently have 30A. Time to call an electrician.

40A total? or per oven? How many circuits does it use? There seems to be little consistency in power requirements for wall ovens...

My Jenn-air double oven needed 3 circuits; 21A each (240V) plus basic 15A/120V for the clock and controls.

 

[DRP6833]

Well this is getting weird...

I downloaded a data sheet for the oven to get the mounting dimensions, and that stated a 208/240V 40A breaker is needed. In the copies of paperwork I got from Home Depot was the same data sheet but it states 30A. Then I noticed that there are two different revision dates; the newer one (dated 10/20) says 30A.

Before I do anything more I plan to contact GE to verify what is really required. It seems strange that the power requirement would go down.

 

[wyliesdiesels]

40A total? or per oven? How many circuits does it use? There seems to be little consistency in power requirements for wall ovens...

My Jenn-air double oven needed 3 circuits; 21A each (240V) plus basic 15A/120V for the clock and controls.

Why couldnt they run the clock/controls off one of the hot legs and neutral via an MWBC for the oven?

 

[u2slow]

Why couldnt they run the clock/controls off one of the hot legs and neutral via an MWBC for the oven?

It insisted on 15A protection for the 120v. Weird one eh?