Issue with Bachmann Decoder

[adingus12]

I bought a Bachmann Decoder to put in a DCC-Ready Athearn AC4400. After I installed the decoder and put the engine on the track, immediately when the track had power, the engine started running on its own. I couldn't control it or program it. Has anybody had this problem? Did I do something wrong or is it a faulty decoder?

[river_eagle]

did you remove the jumper plug from the 9 pin harness?

 

[adingus12]

That was it, thanks. I'm a newbie with DCC, but yeah I know that Bachmann's not exactly the best. But I thought, what the heck. Never again, though. The stupid thing started smoking after putting power to the tracks. Thanks again, though.

[jeffrey-wimberly]

adingus12

The stupid thing started smoking after putting power to the tracks.

Primarily because of the jumper being left in place. Been there and done that.

[adingus12]

thanks guys