When ever we have a problem with any toy train product we should never feel timid about calling the manufacture for help.
I can tell you some wonderful stories about what both Lionel and MTH did for me and they owed me nothing. Both are wonderful people and that is why I love them.
Bachmann is in a class all by their selves. I walked up to them with product that was years out of the box and they always did one of three things. They fixed it, replaced it, or gave me a like product instead. That's why I also Love Bachmann.
I never had a problem with Atlas or 3rd Rail items but I'm sure they are the same way. That's why so many people love Atlas and 3rd rail.
I can be redundant about all the other companies that service our hobby and that is why we should always call them first. Because they really do care about how warm and fuzzy we feel about them.
Most Dealers are that way also, but unfortunately not all.
Good luck.