Wie te bellen · HVAC Technician
Furnace blowing cold air? Dit is wie je moet bellen
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.
What's going on
How to fix furnace blowing cold air
Some "furnace blowing cold air" cases look simple, but getting it wrong almost always costs more than calling a pro: hidden leaks, fire risk, code violations, and insurance headaches. A licensed HVAC technician will diagnose the exact cause, use the right professional tools, and stand behind the repair. Most local pros offer free quotes and can visit the same day or the next.
Who to call
HVAC Technician
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Symptoms to look for
- 01
Furnace fan runs but only cold or lukewarm air comes from the vents
- 02
Furnace cycles on and off every few minutes without reaching the set temperature
- 03
Pilot light is out or flame sensor glows but burner does not ignite
- 04
Thermostat display shows the system is heating but rooms stay cold
- 05
Burning smell or clicking sound when the furnace starts up
FAQ
Frequently asked questions
Who should I call for: Furnace blowing cold air?
Call a licensed HVAC technician. HVAC Technicians have the specialized training, tools, and insurance to diagnose furnace blowing cold air safely and stand behind the fix. Most offer free quotes and can visit the same day or the next.
Can I fix this myself?
Some minor cases can be handled DIY, but most require a licensed HVAC technician to avoid costly rework and safety risks. A free quote takes under a minute.
How fast can a pro come out?
Most HVAC technicians offer same-day or next-day visits for non-emergency issues. True emergencies (burst pipes, gas smell, no heat in winter) are typically handled within 1–4 hours.
How much does it cost to fix?
Costs vary by severity and your location. Submit a free quote request to get real pricing from local pros in your area.
What are the signs of: Furnace blowing cold air?
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.