There apple of fortune are several indicators that your air conditioner may require repair, and recognizing these signs early can prevent more serious issues down the line. One of the most common signs is insufficient cooling, where your AC unit struggles to maintain the desired temperature despite running continuously. You might also notice weak or uneven airflow, which can be caused by blockages in the ducts, a failing compressor, or other internal issues. Another red flag is unusual noises coming from the unit, such as grinding, squealing, or banging, which often indicate worn-out components or loose parts that need attention. In addition, if you detect strange odors, like a musty or burning smell, it could signal mold growth within the system or electrical problems. Finally, a spike in your energy bills without a corresponding increase in usage often points to an inefficient AC system, which may require a professional tune-up or repair to restore its efficiency.