The symptoms of a duct problem are many and varied. In many cases, you are likely to assume that the problem originated with your heating and cooling unit itself. And while that is certainly a possibility, your problem could just as easily be originating in your ductwork.
Regardless of what you think the problem is, it’s important that you call for professional service right away. Letting issues like this persist will only lead to more problems down the line, potentially costing you even more later on.