Furnace blowing cold air — Chicago, Illinois
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.
Waarom dit veel voorkomt in Chicago
Lake effect weather creates extreme temperature swings — from -20°F winters to 95°F+ summers — meaning both heating and cooling systems work year-round. Furnace failures during polar vortex events are emergency situations, and many Chicago homes rely on aging boiler systems.
Who to call
For this problem in Chicago, call a: Klimaattechnicus
Vind een Klimaattechnicus in ChicagoSymptoms 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
Spoeddienst in Chicago
Emergency home services in Chicago are widely available 24/7, with typical response times of 30–60 minutes. After-hours rates range from $100–$200/hour. During polar vortex events, heating emergencies can see delays of 4–8 hours due to overwhelming demand. Illinois requires plumbing and electrical licenses for all work.