ERR Sound Commander in RMT Beep

My installation went pretty smoothly in a Beep with three exceptions:

  1. There is no prime mover sound at all. Maybe just a slight burble at startup but no consistent sound is generated. I operate in conventional mode.

  2. The whistle blows using a 1033 but not my LW both of which blow a PW whistle tender just fine. The Beep is pulling one of their lighted cabooses at the instructions suggestion. When I press the whistle on the LW, the Beep speeds up and the lighted lock-on gets brighter but no sound. It works ok on the 1033 hooked to the U-A terminals for 5 - 16v. When I reverse the wires, I get a bell as per the instructions. Sound volume is good.

  3. The instructions say that you should put a baffle behind the speaker and seal it so it’s air-tight but their pictures show an installation without a baffle. I used a cut down cup. How does the mass or the air or the length of the air column play into the sound performance?

This seems to be a very good deal for sound, $20.00 plus $5.00 shipping. But as the Beep only beeps, I’m disappointed.

Can you help?