Coleman Powermate Powermate 5000W Generator "wiring 3 wire 4 220" Questions

...wiring has been tampered with and connected incorrectely. 2. The switch that switches the mode from 120 to 240 has gone bad, possibly with a welded contact. This would occur if the switch is changed ...

...3-prong blade type. My six circuit Reliance ProTran transfer switch has the 4 prong female twist lock. Both ends of my 30amp 4-wire cord are twist lock. The end for the transfer switch is no problem. ...

3 or 4 diodes and a litle orange thing all on a 1x1 inch board the brush wires go to generac was purchased by Briggs Stratton some years ago, however some information is available at the following web

3 wires how do i make the conection The four wire 220 twist lock receptacle Two hot wires, one neutral, and a safety ground. Depending on your generators setup the neutral and ground are bonded as one