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kgreer313 12-07-2011 09:43 PM

Wiring replacement microwave
I apologize off the bat as this post may get wordy. I am replacing an over-the-range microwave with a new one. The house originally had a regular range and an over-the-range convection oven. The convection oven was long ago replaced by an over-the-range microwave, but it appears that the original 220 wiring to the convection was also used for the microwave. Within the breaker box, the white/black wires on this circuit were dedicated to the microwave, and the red wire was left loose, hanging in a coil at the bottom with a tag that reads: This conductor is spare in the microwave oven recpt. However, and this is my concern/question, when I test the red wire, it has continuity. Can I install the new microwave using this same wiring configuration? Is the red wire creating a potential fire hazard? All replies are appreciated. Thank you in advance for your help!

joed 12-07-2011 10:01 PM

There is no problem leaving the red wire disconnected at both ends.
What gauge is the cable? #12 is good for 20 amps. #14 is good for 15 amps.

jammin06 12-07-2011 10:08 PM

It has continuity with what?

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