Norcold N611 AC circuit

Yesterday, I noticed a problem with the romex that supplies the AC outlet in the refrigerator's outside access. A small loop of the romex was pressing slightly on a fairly sharp edge of a galvanized sheet metal brace that supports the sheet metal piece that the controls and etc of the refrigerator are mounted to. I looked at the romex, and there is a dark, sharp dent in the plastic outer jacket, maybe leaking current to the sheet metal bracket. I pulled the loop of romex away from the edge, wrapped the dent in electrical tape, and the AC refrigerator heating element is still working since then. I think that fixed the problem.

The link to the Norcold Service Manual is much appreciated.

Thanks to all for the electrical information and the willingness to help!