Started about 3 weeks ago. After operating normally for about 10 minutes after start up, the controller starts having problems;
1. sometimes will not respond to commands
2. icon onscreen that indicates # of loco being addressed, direction indicator, etc, just shows a =
3. cab runs up to full power on its own, sending Legacy loco off like a rocket, with no operator input or control
4. red "communication" light on command base continuously flashes
5. I have (a.) turned off cab and removed batteries and reinstalled new batteries (numerous times) and (b.) unplugged and replugged base numerous times
What do I do next?