ok thanks for your help

EZ Command Control Center by Bachman

The engine was brand new and the directions stated to run it for a short distance on DC. It wouldn't run from the beginning. I then tried DCC and it wouldn't operate on that either.  I understand the possibility of my shorting out the circuit board, but I didn't attempt to jump it until after I tried both DC and DCC. I will check the instructions on how to reset it to factory specs.  Hopefully, I didn't do too much damage.

The engine does not operate on either DC or DCC. In the process of troubleshooting, there is continuity from the wires running from the wheels to the circuit board. If I use two jumper wires from the track to the resisters, the engine will work. Any idea what the problem could be?

I am new to the site. I have an F-unit HO scale engine that I need troubleshooting help with. Can anyone help or is there a troubleshooting guide?