Z-4000 voltage issue?

I believe this is relatively normal for this transformer where small voltage leaks are common. If it were higher or prevented you from shutting down a command control engine, that would be problematic.

An easy solution is to install a lamp or lighted lock-on on the track and that should bring the voltage reading down to zero or near zero when you put the handles all the way down.

If the serial number starts with 0398, it is the first run of transformers and the voltage leakage is a known problem.  Will work fine, effect is diminished by adding a load, can be fixed, but it is a somewhat challenging repair.

Thanks for the info guys.

@Richie C. I’ll give the lock-on a try.

@Jon G Yup, it starts with 0398. Good to know I can hold off on repairs until more would need to be addressed.

OGR Rocks! -Bill

Update: I was focused on the track power and finally got around to testing the accessory power terminals. They both put out 19 volts. Any guidance on how to address this?

Barring any easy fix, I'm thinking of just not using it for accessories. Thoughts?

As my layout sits today I use a Z-4000 for my trains and a ZW-C phased together. The ZW runs all of the accessories, I like having different voltage options depending on the accessory. I don't know what you have as a spare transformer but this was my preference and it has worked out for me.

TLDR: I'd probably just leave it alone.