🔥❄️ Furnace Runs, But the House Still Feels Cold? Low Airflow Is a Common Cause ❄️🔥
🔥❄️ Furnace Runs, But the House Still Feels Cold? Low Airflow Is a Common Cause ❄️🔥
If your furnace is on but your home won’t warm up, you may not have a “heat problem” — you may have an airflow problem. Your furnace can produce heat, but if the air can’t move through the system properly, that warmth won’t reach your rooms. Low airflow can also cause the furnace to overheat and shut down early, leading to short cycling and bigger repairs.
At Uptown Heating & Air Conditioning, we test airflow, blower performance, static pressure, filter condition, and duct delivery to get your heat back strong, steady, and even.
⚠️ Common Signs of Low Airflow
✔️ Weak air from vents (even when the furnace is running)
✔️ Some rooms warm, others stay cold
✔️ Furnace runs longer than normal to keep up
✔️ Filter gets dirty very fast
✔️ Furnace turns off before reaching the set temperature
⚠️ Most Common Causes
✔️ Dirty/clogged air filter
✔️ Dirty blower wheel / weak blower motor
✔️ Coil buildup restricting airflow
✔️ Blocked returns or closed vents
✔️ Duct restrictions, crushed flex duct, or duct leaks
✔️ Fan speed not set correctly
💡 Quick Tip: Replace the filter and make sure vents/returns are open. If airflow is still weak, it needs a professional airflow diagnostic.
📅 Schedule your heating check today!
📍 Houston, Katy, Cypress, Spring, Tomball & surrounding areas
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