Qote :
What happened? The owner replaced an old HVAC system with a new brand new high efficiency heat pump and refreshed duct work. That new system apparently pulled a lot more moisture out of the basement and cooled the basement much better with 20+ operators in the room. Wood shrank. Rail gaps that had been gaped just fine, suddenly shorted, and after 30+ years, the owner had to go back and widen all the gaps. And with that, all the mystery shorts disappeared.
Just a thought...
Kind regards,
Bill
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I shortened a turnout 2 weeks ago on 3 side to fit it in a tight place , had to solder the 2 short rails at the frog , it was fine until I had to leave the train room door open for 2 or 3 days loosing the controlled air ....
I had search everywhere for the short circuit , I had finally pinpoint the problem on this module out of 8 modules .... 2 days ago I had shut back the door discouraged of ever finding the problem , the temperature came back to normal , today I checked the tracks on this module with an ohmeter , no more short circuit !!!
Another check at the turnout and the rails are close but not touching !!!
Thanks for all your advices !
Model railroading is more fun when trains are moving .....