I was able to verify a good tach signal: Tach led illuminatd and would flash when I rotated the actual tachwheel.
Went through the manual and performed program steps on page 28 and 29. When I got to the step of pressing the "BOOST" key to get the engine moving in the lowest speed step, I was still confronted with the same initial symptom: whistle would blow non-stop until throttled back down. No movement of the locomotive or motor.
What should I be looking at next? Manual didn't have a problem/troubleshooting section addressing this specific situation.
Thanks.