When I first hooked up my Digitrax UR-91 I followed instructions and hooked up the unit to a 12V DC power supply. The system ran fine but in the last several months I've been having trouble with a non-responsive throttle even though I am never more than 15 feet from the UR-91.
I've narrowed the problem down to the UR-91 and have found that the system works best when the 12V DC power supply is not connected. In fact, when I plugged the power back into the UR-91, the green LED goes out and the throttle reverts to the "idle" mode when I remove it from any of the loconet stations.
I'm of the school, If it ain't broke, don't fix it, so I'm tempted to continue running the system without a power source connected to the UR-91, however I'm concerned that I might be causing some sort of problem or damage.
Anyone have any thoughts?