1075SSE Wiring Question Wires Relays Melting since purchased New

I am in the process of repairing for my boss. Looked up manuals and initially found a manual that has 2 relays in the control box. This machine has 1 relay. After some investigation i noticed that the 2016 has 1 relay and the 2016 had 2. Does anyone know why? Reason I am asking is because the boss said this machine melted wires and relays since the thing was bought new. He kind of of challenge me saying no one could fix it… So if any of the experts could give some wisdom my way would be much appreciated.

Thanks,

Heath

See if this helps: First thread that comes up when searching melted relay.