Why Is My Furnace Blowing Cold Air?
The thermostat fan setting, a dirty filter, a burner that won't light and other common reasons, with the checks that are safe to do yourself and when to call.
Read the guidePlain answers for Park Ridge, Illinois and nearby suburbs on cold air, short cycling, pilot lights, radiators, heat pumps, gas smells, power outages and 2026 rebates. Each guide names its sources.
Get a Free QuoteSafety and legal topics are general information, not professional, legal or safety advice. If you smell gas, leave first and call from outside.
The thermostat fan setting, a dirty filter, a burner that won't light and other common reasons, with the checks that are safe to do yourself and when to call.
Read the guideWhy a furnace starts and stops every few minutes, from airflow and thermostat placement to an oversized unit or a flame sensor problem.
Read the guideHow age, repair cost, efficiency and the heat exchanger factor into a repair-or-replace decision, with published national price ranges.
Read the guideCarbon monoxide safety first, then the warning signs, how a technician checks, and what replacement typically costs by published estimates.
Read the guideHot water vs. steam systems, how to bleed a hot-water radiator step by step, and the signs that a boiler needs a professional look.
Read the guideHow cold-climate heat pumps, gas furnaces and dual-fuel setups compare in O'Hare-area winters, and the questions to ask before choosing.
Read the guideWhat Nicor Gas's 2026 program lists for furnaces, boilers and thermostats, where to check ComEd programs, and why there's no federal credit for 2026 installs.
Read the guideWhat to do first if you smell gas, then how dust burn-off, electrical and other burning smells differ, and when each needs a call.
Read the guideOlder standing pilots vs. electronic ignition, what a dirty flame sensor does, and why gas-part repairs belong to a professional.
Read the guideBreakers, the furnace switch, thermostat batteries and resets to check after the power comes back, plus what to do if the house keeps getting colder.
Read the guideNew to furnace trouble? The furnace repair guide explains the parts that fail most, the no-heat page walks through safe checks, and the cost guide shows published price ranges with a calculator. Quick answers live in the FAQ.
Guides that touch safety put it first. If you smell gas, leave right away and don't use phones, switches or anything that could spark. Once you're outside and a safe distance away, call Nicor Gas at 888-642-6748 or 911. Don't try to find or stop the leak yourself. If a CO alarm sounds or anyone feels sick, get everyone outside and call 911.
When you're ready, describe the problem once and independent companies serving Park Ridge and nearby towns can reply with free quotes. Companies reply on their own schedules; in a no-heat emergency, also call a company directly.
Describe it once and independent heating companies serving Park Ridge and nearby suburbs can reply with no-obligation quotes.