Furnace blowing cold air
Answer: call a hvac technician.
When your furnace runs but only pushes cold or lukewarm air through the vents, the problem usually lies with the pilot light, flame sensor, gas valve, or a clogged air filter that triggers a safety shutdown. A certified HVAC technician can diagnose the root cause and restore heat, often in a single visit.
Who to call
For this problem, call a: HVAC Technician
Symptoms to look for
- Furnace fan runs but only cold or lukewarm air comes from the vents
- Furnace cycles on and off every few minutes without reaching the set temperature
- Pilot light is out or flame sensor glows but burner does not ignite
- Thermostat display shows the system is heating but rooms stay cold
- Burning smell or clicking sound when the furnace starts up
Related services
Not sure which service?
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