Dampers are an important part of any HVAC system, but they can cause problems if they're not maintained properly. Dampers help regulate the flow of air through the ductwork, and they can become clogged with dust and debris over time. This can restrict airflow and make it difficult for your HVAC system to maintain a comfortable temperature in your home. If you notice that your home isn't heating or cooling evenly, or if your energy bills have been rising, it's a good idea to have your dampers checked by a professional.