What is a common symptom of a dirty evaporator coil?

A dirty evaporator coil significantly impacts the overall performance of an air conditioning system. As the coil becomes coated with dust, dirt, and grime, its ability to absorb heat from the air diminishes, resulting in reduced cooling efficiency. This means that the system has to work harder to achieve the desired indoor temperature, leading to longer run times and higher energy consumption.

A decline in cooling efficiency often becomes evident through warm air blowing from the vents or the system struggling to maintain set temperatures. This not only affects indoor comfort but may also contribute to other issues such as increased wear and tear on the compressor, leading to potential system failure over time. The important takeaway is that maintaining a clean evaporator coil is essential for optimal cooling performance and energy efficiency.