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Allan - disconnected all auto reverser wires and the humming stopped. Don't know if this means there could be a fault in the AR or elsewhere. I do not have electronic circuit breakers

Ted, You mentioned scenery modifications. By any chance did these modifications include the use of water and/or other fluids in/on the track (such as laying down ballast)? If so, you might have

Ted, You said you disconnected the reverser.? Was it disconnected when you got the faint buzzer sound?? Do you have an electronic circuit breakers installed? The buzzers are very sensitive.? They

I have a layout with two ~ 4 x 8 sections(mining & industrial) powered by an NCE power cab. Some time ago I did some scenery modifications on the mining section (that did not involve track mods).

To all who have responded, THANK YOU!!! All the Vendors I have asked this about have told me that the PH10R was too BIG for my use in HO Scale 7 If I had a short I would most likely lose motors /

What do the specs for your devices say? You may find some motors and decoders are plenty happy with an 18V system. Puckdropper

What brand/model DCC system is this?? Most systems have a control built into the booster to set the output voltage.? NMRA standard for DCC sets a limit of 22V for DCC and most decoders would be

It may be less of a headache to buy a power supply for the voltage the OP needs. Switching DC power supplies can be acquired relatively cheap from Mouser or Digi-Key. Rick

Loren, You may have a setting in the booster that will allow you to drop the voltage. To limit the current I suggest you use DCC circuit breakers and set the trip current low enough to protect the HO

In addition to dialing down the track voltage, it's a very good idea to divide your layout into several power districts and connect each to the booster via an electronic circuit breaker set to a more

Loren, I don't think the resistor idea will work.? The average voltage will vary with the speed of the loco.? Be aware that motor speed is not controlled by varying the voltage to the motor.? The

Can't you set the appropriate CV to limit the voltage to the motors to 12 volts? I think that a resistor's effect would depend on the amps drawn by whatever trains were running.?

Is there a way to make a 10 Amp-18Volt dcc system safe for HO Scale Locomotive Motors by inserting something ( a resistor? ) between the rails & the dcc decoder? I am cross posting to multiple groups

Crossovers are probably the most common way modelers choose to reverse the direction of travel of their trains.? I think they do this without knowing they are creating a reversing section and may not

I think I figured it out, I had a bad frog juicer. ?I switched it out for a different one and it works. ?Thank you for all your help. ?I really do appreciate it Kurt

We are getting closer! Double check the trip amperage on the frogs juicers. It needs to be lower than the trip amperage of your booster. Otherwise the booster shorts before the frog juicers can

I have 2 reverse loops but they are isolated with plastic joiners, and I have them on NCE AR 10 reverse loop circuits Kurt

I disconnected both juicers and no short Kurt Could the frog juicer be bad?

Isolate the problem to the frogs by disconnecting them from the frog juicers. Do you still have a short? If so, do you have a reverse loop in this setup? That is, doesn’t your track work allow

So I think I isolated it to the frogs that is causing the short. ?I have tried rewiring each frog in the crossover and it still shorts it out depending on the the turnout position. ?So now what?