New DCC HO Loco has NO sound

No manuals, just this

https://resources.bachmanntrains.com/2007/2007_Bachmann.pdf

Videos and the company

https://www.google.com/search?q=Bachmann+HO+steam+loco+i83606+manual

..

Call Bachmann and ask them.
I did,and found them to be extremely helpful.
Here are some other ideas, if you wish to try them.
Take a piece of paper, not cardboard, but a heavier than normal weight, and cut pieces of it into shapes that will fit under the wheels of the loco and tender, and will cover the tracks
If you put a paper under the loco, and none under the tender, perhaps it is OK there, or, if you put paper under the tender, and none under the loco, perhaps it is OK there.
Try to isolate where exactly the short is.
God bless your efforts.

Try new batteries in the controller Be sure they are in correct. The LED light should come on when it has power. Try moving closer to the train. Usually when the red light is flickering is when there is an engine problem. But here is the Manual just in case you did not have one. Also it has a number for lionel Service in there. Good luck. =) http://www.lionel.com/media/servicedocuments/60287110222501.pdf

Did you set the code for controller and loco?

I've had the same issue. I doubt it's your DCC hookup. Those motors are probably shot, and need to be replaced. I run analog, and I've had multiple motor failures with these things. These motors don't last long and, when one goes, the other one often follows... fairly soon after. I was able to prolong the motor life a little bit by orienting the motors to run the same direction. (I turned the rear truck around. I realize that's probably not possible, with your DCC in place.) I've still had motors fail, in spite of motor orientation. I've got all nine units, and six of the nine have had to have motors replaced. Some units, I've had to replace motors more than once! I haven't figured out any way to bring a motor back to life, once it starts stalling intermittently, or if it quits altogether. Sometimes, rotating the motor a tiny bit in its cradle might help, but that's a stop-gap. I suspect motor failure... unrelated to the DCC hookup.

Have you let the loco charge first? The instructions are a bit vague but the loco needs to charge before it runs. Not easily understood from the instructions and many have spent some frustrating minutes wondering why their train wouldn't move.

Contact Bachmann Customer Service:
http://www.bachmanntrains.com/home-usa/service_2010.php

sounds like it's too lightweight! try running with a big blob of plasticine on top, to see of it runs right. if it then works ok you need to fill the internal spaces with lead (ask your local tyre shop for the weights they take off wheels when changing tyres)

I assume you have the Treetop Tender car on the track? The treetop tender is car that makes the electrical connection between the track and the train.

1. Use a volt meter across the track. You should have about 10.5VDC on the track (anywhere on the track)
2. Even without the Loco on the track, the Treetop Tender should light up if you have power to the track. If you have power and the tender does not light. Check the brushes located between the wheels on the tender. These are the motor brushes that pick up the current from the track for the train set. Make sure they are contacting the track.
3. Add the loco to the track and plug in the large black plug from the tender to the loco. Turn on the power and press forward. The train should start rolling.

Try all the functions, bells, ho ho ho, all aboard etc ..

Add one car at a time and make sure that each one lights up before moving on to the next.

Had the same problem. The loco would buzz, but no movement. Took the loco & controller to my local hobby shop for testing. Found out my loco was fine, but the controller had shorted out. Swapped it out & it's all good.