HVAC Systems
Dirty Coils vs. Low Refrigerant: Using Thermal Imaging to Diagnose Airflow
This is one of those HVAC issues where a lot of people — including some technicians — guess instead of verify. Warm air coming out of the vents? First reaction is usually, “Must be low on refrigerant.”Sometimes that’s true. A lot of times, it isn’t. This is where thermal imaging
January 27, 2026
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