ERR install on a Williams brass daylight

Gentlemen,

I completed and ERR install (commander and GS4 sound unit) in an older Williams brass Daylight. Everything went well. It ran the layout for about 2 days. Last night I needed to move it to a siding. It ran about 20 feet on a straight away, stalled, ran a few feet more then stopped cold. The Z4000 went red on a short. I thought it might have been one of the passenger cars is was pulling.

I pulled each car, still in shorted.

I pulled the loco, not shorted (so not a track issue).

I pulled the tether from between the loco and placed only the loco on the tracks. Headlight came on and No short.

I placed the tender only on the tracks. No short

I placed them both on the tracks and reconnected the. The short returned.

I pulled the tender shell. Still shorted.

I pulled the sound board only. Still shorted.

Seems like I have an issue within the commander board... if so, WHY?

Other than providing additional cuss words that I may not have covered last evening, Any ideas here???

Troy

10/22/197:53 AM

Original Post

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