I had a corroded contact on an MES 30. The wire is copper, and the contact appears to be iron. I could not find any brass or copper crimp connectors, so I decided to solder it. I found a soldering iron at Wal-Mart for $5. Here is the before pic: I cleaned up the contact with emery paper: Here are the supplies: I realized that it would be much easier to solder by laying the smoker down on its belly so that I had a horizontal surface for the solder to puddle on. The heat-shrink tape is on the wire ready to slide down, However after ten minutes with a blow-dryer it did not really shrink much so I called it good. Back in action!