Today, when I applied voltage, the Z 4000 would not come off of 0.1volts. There was some buzzing and clicking noises in the layout especially from lighted passenger cars. No red lights on the Z4000 lit up and I had no voltage reading on the track. I moved the handle up and down several times and I got a normal voltage reading. (and I was able to run some trains) GGG, I was about to disconnect the transformer from the track to see if the voltage would increase, but it started working properly. I will check the amps next time it acts up. The problem is intermittent and acts like a short, but the red overload lights never come on. I appreciate any thoughts. thanks
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