What is a common indicator of a refrigerant leak?

A common indicator of a refrigerant leak is reduced cooling effectiveness. When there is a leak, the refrigerant levels drop, which reduces its ability to absorb heat from the indoor air. This diminished capacity results in less effective cooling, leading to higher indoor temperatures, discomfort, and an overall decrease in system performance. The symptoms may also include longer run times for the system as it tries to maintain the set temperature, leading to increased energy consumption.

While other indicators may be relevant, reduced cooling effectiveness is closely tied to the refrigerant's function in the HVAC system. It directly impacts the system's ability to perform its primary job—cooling—and serves as a red flag for potential issues that require further investigation. Identifying this sign early can help technicians address the problem, minimize additional damage to the system, and restore optimal performance.