What is an overflow pan used for in an air conditioning system?

An overflow pan in an air conditioning system serves as a safety mechanism designed to catch excess water that may accumulate from the condensate drain line. When an air conditioning system operates, it removes humidity from the air, which accumulates as condensate. Under normal functioning, this moisture is directed to the drain line and expelled outside or into a designated drainage system. However, if the drain becomes clogged or obstructed, water can back up into the system, potentially leading to leaks, water damage, and other issues. The overflow pan is strategically placed to collect this excess water, preventing it from spilling into the living space or damaging other components of the system. This functionality makes the overflow pan an essential part of the system's design to maintain efficiency and protect your home from water-related problems.