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Furnace Blowing Cold Air — Brilliant, OH

October 27th, 2025

1 min read

By Alex Largent

Furnace Blowing Cold Air

Quick Answer

If your furnace in Brilliant is blowing cold air, first set it to HEAT and the fan to AUTO. Replace any dirty air filter and reset tripped breakers. If it still won’t produce warm air, you may have a faulty ignitor, clogged flame sensor, or duct leak—issues best repaired by Honest Fix Heating, Cooling & Plumbing.

Brilliant’s riverside neighborhoods, including Market Street, Third Avenue, and the hill homes near La Belle View, face unique heating challenges. The Ohio River brings damp air that can cause corrosion inside furnaces and metal ductwork. Many older houses have low crawlspaces or unfinished basements that make maintenance tricky. When a furnace starts pushing cold air instead of heat, the problem can spread fast through small duct systems.

First Things to Check

Confirm your thermostat is set to HEAT and that the fan mode is AUTO, not ON. A dusty or clogged air filter can overheat the furnace and cause safety shutdowns, letting only cool air through. Flip the furnace switch and reset any tripped breakers. In many Brilliant homes, especially those with older electrical panels, this simple step restores full operation.

When It’s More Than Settings or Filters

If the air still blows cold, the ignition system might not be firing correctly. Worn ignitors, corroded sensors, or low gas pressure are common culprits. In Brilliant’s older riverfront houses, loose or rusted duct joints often send heated air into crawlspaces instead of living areas. Honest Fix technicians frequently uncover these hidden leaks and restore full heating efficiency the same day.

Professional Repairs That Last

Honest Fix’s NATE-certified technicians handle all ignition, airflow, and safety system diagnostics with precision. Each repair includes a 5-year labor warranty, no overtime charge, and flat-rate pricing. From downtown Brilliant to the hillside streets overlooking the river, families rely on Honest Fix for reliable heat and clear, honest communication.

FAQs

Why is my Brilliant furnace running but blowing cool air?

If your system cycles but never warms up, the ignitor or flame sensor may be failing. Switch the fan to AUTO; if it stays cool, schedule a diagnostic.

Does river humidity affect Brilliant furnaces?

Yes. Moist air from the Ohio River can corrode burners and sensors, especially in low basements. Yearly service helps prevent ignition issues.

How much do repairs cost in Brilliant?

Typical repairs range from $180–$550. Most involve cleaning or replacing ignition components, covered under Honest Fix’s 5-year labor warranty.

Exact HVAC replacement quotes available at (740) 825-9408 or HonestFix.com/schedule-service.

Author: Alex Largent

Alex Largent

Alex Largent is the Owner and Senior HVAC Efficiency Analyst at Honest Fix Heating, Cooling & Plumbing. With more than 20 years of field experience, NATE and EPA certifications, and a hands-on leadership style, Alex teaches his team to fix systems right the first time — with transparency, precision, and no upsells. He writes about HVAC diagnostics, home energy efficiency, and practical maintenance advice for homeowners across the Upper Ohio Valley. Read Alex Largent's full bio at "honestfix.com/about/alex-largent" to learn more about his expertise in the HVAC/Plumbing Industry. Updated October 2025