Converting the Onan to Dual Fuel

Switch inserted into the fuel pump circuit. Left position send power to the fuel pump. Right position sends power to the propane solenoid. Center off shuts down the Onan fuel supply to drain the carb if it is running on gasoline or to shut off the propane supply if it is running on propane. Since the power to the switch comes from the fuel pump circuit the safety shut down feature still works on either fuel source.