The answer to 'why is my air handler high energy bills' is that there are several common causes, including an oversized unit, dirty air filters, leaky ductwork, and inefficient components. An oversized air handler will short-cycle, turning on and off frequently, which wastes energy. Dirty air filters restrict airflow, forcing the system to work harder. Leaky ductwork allows conditioned air to escape, making the system work overtime. And old, inefficient components like the compressor or blower motor can consume more electricity.
If you're experiencing high energy bills with your air handler, it's important to have a professional HVAC technician inspect the system and diagnose the root cause. They can check the sizing, airflow, ductwork, and component efficiency to identify the issue and recommend the best solution, whether that's upgrading the unit, sealing leaks, or replacing worn-out parts.