Using a Digitrax DCS50. Loco is a brand new (HO) Bachmann Climax with DCC/Sound

Put the new Bachmann (HO) Climax loco on the ProgMode track and tried to ID the decoder. It kept coming up with [d nA] (note: checked my other locos on it, no problems reading their decoders) Then stuck the Climax on the regular track and it activates, but makes a constant LOUD HISS. The directional lights, whistle and forward/reverse all work. Though no bell. But that continuous, unending HISS is seriously LOUD??? Something isn't right.

How exactly can I fix this? Please keep in mind I am new to DCC and have only programmed loco numbers for choosing which one I want to run at a given time.

Thanks! Rob