Today I had low amps reading and started checking all the cord connections and realized the black and red connectors were completely melted and separated from the cell cable. Obviously I need a new cord, however I am wondering what caused this before I install a new cable. Is there something causing this or is this just something that happens over time. The cell is a SC-48 (its not a generic cell) 1 year old. The whole unit is ~4 years old. I live in Phoenix and its been >110 F all this week. Don't know if it just overheated?