Wiring a KitchenAid Combo Wall Oven – 8/4 AWG armored whip is too short

KenBradley

Premium Member
Joined
Nov 20, 2010
Messages
7
Location
CT
Model Number
KOCE507EBS
Brand
KitchenAid
Age
Less than 1 year
Just purchased a Kitchen-Aid combo wall oven, model #KOCE507EBS. Comes with a pre-wired 8/4 AWG whip that is only 4′ long. However, it’s about 6-8″ too short, if you have a box located BELOW the oven. It is more than enough length, if box is located in cabinet ABOVE the oven. Installation instruction specifically say if box is BELOW the oven, it should be located a max. of 3″ below base of oven. However, the whip ends don’t even reach the bottom of the oven chassis.

This was shipped direct from Kitchen Aid, so I know someone didn’t modify or shorten it. Why would they not extend the wires by 6-12″ so it would accommodate most any wiring arrangement – just doesn’t make sense. Whip runs horizontally across a "step" on back of oven and meant to run down RH side of oven, apparently "up" or "down" RH side.

Romex conduit is clamped to "step" on back of oven, and removing clamp does not really help extend useful length of conduit to RH bottom corner of cabinet. Anyway, the question is, what is the best way to “extend” the whip by 8″ or so? Really should be significantly longer in order to easily slide oven in/out of cabinet.

I looked at various electric distributors/warehouses, and don’t see any 5ft or 6ft armored whips in this wire gauge. I really don’t have room between the oven and the back cabinet wall for a junction box (very narrow one). I could obviously buy wire and a roll of armor shielding and create my own to the proper length, but wondering if there was a more ready-made solution.

What do other people in the trade do with the Whirlpool/KitchenAid/Jenn-Air ovens that are apparently ALL like this? Looking for some actual assistance and installation assistance, other than the standard answer “call an electrician”. Please let me know how any of you would approach this. Thank you in advance for any advice you can provide.

4-Wire-Wiring-Instructions.jpg Oven-Dims.jpg Wiring-Instructions.jpg Wiring-Instructions2.jpg
 

KenBradley

Premium Member
Joined
Nov 20, 2010
Messages
7
Location
CT
Junction box is located approx 4" below oven shelf/support on right-hand side. There is a storage drawer below the oven and there is some room there to connect wires and store extra whip length. Previous oven had enough extra whip length to allow it to pull all the way out of cabinet without disconnecting from junction box. There is no extra slack to move it up above shelf that supports oven to reach the whip (which is about 6+" short of the base of the oven).
 

KenBradley

Premium Member
Joined
Nov 20, 2010
Messages
7
Location
CT
I thought of that too, initially. Unfortunately, the one off the old oven isn't any longer than this one (might even be shorter). That one exited the back of the oven in the middle on the right, and had a lot of extra range, due to it's "starting" location on the oven. This one connects to the oven on the upper left, goes across the "shelf" on the rear, and down the RH side, as shown in pictures in the directions.

I figure I could use it as an "extension", but wouldn't I need some type of junction box to comply with code? Not sure I have room enough on back or side of oven for a box. This one doesn't have as much clearance between oven body and cabinet as the previous one did. VERY thin pancake box would be the only think I can think of that might work.

Can you do an inline splice, using heat-shrink, and cover with metal Romex conduit instead of having to actually use a junction box? Is that allowed?
 
Last edited:

rickgburton

Appliance Tech - Moderator
Staff member
Joined
Jul 11, 2006
Messages
34,066
Location
Murray, Utah 84107, United States
You can use either the metal-armored cable or the plastic-sheathed NM cable (romex). Just be sure to use the right size wire and wire nuts. Use black tape as an extra precaution around the wire nuts to keep them from coming off and you won't need a junction box.
 
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