2-10-2 (83305)

[ws6301]

Hi, I just purchased a beautiful 2-10-2 with dcc on board.
when i attempt to run her she wont move ... i can hear some faint sound coming from the loco but no movement. when i light the lights , the headlight flashes... this indicates a short circut with other decoders.. does this apply with the bachmann decoders as well ??
as a note , i use a "Zephyr Xtra"system.
any advice on this ??