The engine is a Lionel Legacy PRR K4. It responds to start up and proceeds just fine. At about 30 seconds into operation it stops, headlight has a dull flicker and smoke generator operates at full throttle. Otherwise it is unresponsive to all commands. If I remove power then re-energize after say 20 seconds it returns to a dull flicker HL and full smoke. When I re-power after a couple of minutes rest then all returns to normal and will again act as normal until another 30 second run. Might a reprogramming be needed to restore correct operation?
Bruce