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Old 12-07-2011, 10:43 PM   #1
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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!


Last edited by kgreer313; 12-07-2011 at 10:45 PM.
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Old 12-07-2011, 11:01 PM   #2
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Wiring replacement microwave


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.

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Old 12-07-2011, 11:08 PM   #3
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Wiring replacement microwave


It has continuity with what?
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