🔥❄️ Furnace Blowing Warm, Then Cold? Your System Is Overheating and Shutting Down ❄️🔥
🔥❄️ Furnace Blowing Warm, Then Cold? Your System Is Overheating and Shutting Down ❄️🔥
If your furnace starts heating normally but suddenly switches to blowing cool air, it’s a major sign that the system is overheating. When temperatures climb too high, the safety limit switch shuts off the burners — leaving only the blower running.
At Uptown Heating & Air Conditioning, we diagnose overheating issues fast and protect your furnace from permanent damage.
⚠️ Common Reasons Furnaces Overheat
✔️ Dirty or clogged air filter
✔️ Blocked airflow causing high temperature rise
✔️ Dirty blower wheel reducing circulation
✔️ Weak blower motor not moving enough air
✔️ Dirty evaporator coil restricting flow
✔️ Heat exchanger overheating due to poor combustion
✔️ Faulty limit switch or wiring
An overheating furnace will shut off repeatedly — and can eventually crack the heat exchanger.
🛠️ Why Houston Homeowners Count on Uptown
⭐ Same-day service
⭐ Licensed HVAC technicians
⭐ Full airflow & safety inspection
⭐ Honest, straightforward repair options
⭐ Service for all furnace and heater brands
We stop the overheating — and restore safe, steady heat.
📅 Schedule your furnace diagnostic today!
📍 Serving Houston, Katy, Cypress, Spring, Tomball & surrounding areas
💡 Warm then cold = overheating. Don’t ignore it.
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