I do not see a "Go" button with the TR-1 or TR-1P

The TR-1 and TR-1P expects to detect a load. If there is an open in the circuit, the Go button will not be present.

The system may have detected an open in the circuit on either the high side or low side of the transformer. To verify the system and/or test leads, connect H1 to X1 and H0 to X0. If properly connected, the Go will appear on the screen.

Note, the system must detect the presence of a load to show the GO button.