Detecting and fixing AC leaks is essential for efficient cooling and system longevity. Start by inspecting visible components, connections, and refrigerant lines for oil stains or corrosion. Use a leak detector or soapy water to identify escaping refrigerant. Low refrigerant or ice on coils may indicate a leak. Once detected, small leaks can sometimes be repaired using approved sealants, but most leaks require professional attention. A certified AC technician can safely repair or replace damaged components and recharge the system. Timely leak detection prevents reduced performance, higher energy bills, and costly long-term damage.