Rectifiers are generally very sturdy pieces of equipment. Chances are good that you might just have a minor problem. Blown diodes and leaky capacitors are easily fixed. As long as you haven't blown the power transformer (not likely), you should be able to get past this by having the supplier fix your existing unit.
However, none of this applies to switchers. They aren't generally repairable in the field, unless you have the phone number of a good tech. If you bought one of those, see if they'll exchange it.