I have an old Williams EP5 that if the track is not clean will blow the horn as it runs. Clean the track and it stops. My test track a  circle of O-72  had arc pits in the center rail of three or four sections of track and when it ran over that track the horn blew.   I made a sort of track cleaning car that slides a copper plate on the center rail and burnishes it. If I run that car a while the EP5's horn does not blow when it crosses those bad sections of track.  Nothing like clean track and sound wiring connections to keep trains with complicated electronics from going crazy, or worse.  Your track and wheels cannot be too clean                           j

I had a similar problem on a Polar Express Trainsounds Tender that kept blowing the whistle repeatedly.  I ultimately had to change out the sound board which fixed it.  After you do all the cleaning you signed yourself up for, next remove the sound board and then extract the sound chip using the correct tool (no picks or jeweler's screwdriver).  That can reduce resistance (corrosion build up) on the pin connectors.  The shells come off and back on these F3's pretty easily. 

 

 

 

 

If my engine would do that predictably on a certain piece of track, that would be cool.  It shows the dedication of that engineer to his duty when I forget to push the horn button.  I would move that track to a crossing gate area.

Not cool if it's random or if every engine does it.

George Retired Msgt USAF 74-94 posted:

Hello Tony H,  I'm using an MRC  270 watt transformer.  None of my other engines do this.  I have Other Lionel as well as MTH, RMT and Williams both steam and diesel.  George

It is almost always a good idea to run modern trains with modern power sources, not only for "behavioral" reasons, but for the safety of the loco electronics, relative to power spikes and short protection - of the loco, not the transformer. The behavioral problems can be inconsistent and vary from loco to loco.

(As an exception, many "old" early modern QSI/Protosound systems required using a Postwar transformer because of wave forms, of course.)

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