Clogged Evaporator Coil – Cooling Lost at the Source

Dust, moisture, and debris combine to clog the indoor coil, blocking airflow and reducing heat transfer.
Chatterbox notices when temperature differential and static pressure shift from normal ranges. That means air is passing, but heat isn’t leaving efficiently.
Cleaning the coil brings cooling power back and helps prevent freeze-ups.
Image: Side-by-side coil before/after cleaning with arrows showing airflow improvement.