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LM-2S install on Bachmann J 4-8-4

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Ten42:
Well I’m getting a fault on one of my outputs and the LM-2s feels hot... it smells cooked...

Alan:
If it is getting hot yet still working then you don't have a direct short as that would cause the LM to immediately shut down. It sounds like you have a low resistance path somewhere in the output wiring causing the LM to work at its upper limits of current supply. While an LM has built in over-temperature and over-current protection that should kick in, it is an electronic device so it is still possible to release factory sealed smoke. Don't operate the LM again until you find and fix the issue.

An LM lighting output max is 1A. At 14.8V that equals 14.8 ohms. Place a multimeter across your wiring (disconnected from LM output). The resistance measured should be well above 14.8 ohms. 

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