Warm Air vs. No Cooling — Why the Distinction Matters
When your AC blows warm air (as opposed to no airflow at all), the air handler is working but the refrigerant circuit isn't removing heat from that air. The diagnostic tree is different from a no-cooling call where the system may not be running at all.
Low refrigerant means the system circulates air but can't absorb heat from it. The air coming through vents feels slightly cool (near room temp) rather than genuinely cold. In Georgetown, refrigerant issues are common in systems 7+ years old and in new construction with incomplete commissioning.
Georgetown's cedar pollen season (December–February) and summer dust load from construction activity coat evaporator coils faster than in less active markets. A coated coil can't transfer heat effectively — air passes over it but picks up far less cooling. Annual coil cleaning is the fix; ongoing neglect leads to freeze-up.
A thermostat calling for cooling but not sending the correct signal to the outdoor unit results in the air handler blowing but the compressor never engaging. Smart thermostat compatibility issues (Nest, Ecobee) are a documented failure mode on Georgetown homes, particularly on Goodman and Lennox systems from the 2015–2020 build era.
Some Georgetown new-construction homes have oversized systems paired with undersized ductwork. The system short-cycles and never runs long enough to cool the supply air properly. The result: air that's marginally cool but can't overcome the heat load in a 2,400 sq ft home on a 102°F afternoon.
Temperature Differential Testing
ProAir measures supply and return air temperature delta on every warm-air call. A properly functioning system in Georgetown should deliver a 15–20°F temperature drop across the air handler at design conditions. A delta of 8°F or less points to refrigerant, coil, or compressor issues. A delta of 12–14°F on a 104°F day may indicate a correctly functioning system that's simply undersized for the home's heat load.
Frequently Asked Questions — AC Blowing Warm Air Diagnostics
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What Georgetown Homeowners Say
System stopped cooling on a Saturday at 2 PM. Called ProAir, tech arrived by 5 PM, failed capacitor replaced and cooling by 5:30 PM. That's exactly what same-day service looks like.
Had a noise coming from the outdoor unit for weeks. ProAir diagnosed a failing fan motor bearing — caught it before it failed completely. Saved me from an emergency call in July.
They told me I needed refrigerant. After they added it, cooling improved immediately. Honest diagnosis, fair price, and they explained everything they found. Exactly what you want.