Upper Ohio Valley HVAC & Plumbing Answers | Honest Fix

Furnace Pilot Light Problems in Brilliant, OH

Written by Alex Largent | Oct 26, 2025 4:00:00 AM

Quick Answer

If your furnace pilot light keeps going out, turn the gas control knob to “Off,” wait five minutes, and relight it carefully. If the flame won’t stay lit, a worn thermocouple, restricted gas flow, or nearby draft could be the cause. In Brilliant’s small-town basements near Route 7, air movement and aging valves often make this a recurring winter problem.

Why This Matters for Brilliant Homes

Brilliant’s homes vary from early-1900s foundations near La Belle View to newer hillside builds in Brilliant Heights. Many basements sit close to the Ohio River, where cold air seeps through stone walls and utility penetrations. That airflow can quickly disrupt a pilot flame, especially in older furnaces with unsealed burners. During frigid nights, negative air pressure in small basement spaces can also pull exhaust back into the flue, snuffing out the light entirely.

Common Pilot Light Issues in Brilliant

Pilot lights rely on steady gas flow and clean ignition surfaces. In Brilliant, older homes with long, low-pressure gas runs may experience uneven flame strength. A flickering or yellow flame suggests dust buildup or weak combustion. Houses along Market Street and the Route 7 corridor often deal with fluctuating gas supply during heavy winter usage. Honest Fix frequently services pilot systems affected by rust, moisture, and outdated venting in these areas.

  • Uneven flame from long, low-pressure gas runs
  • Flickering or yellow flame indicating dust buildup or weak combustion
  • Fluctuating gas supply during heavy winter usage
  • Rust and moisture on pilot assemblies
  • Outdated or unsealed venting causing drafts and backdrafts

Repair Solutions and Prevention Tips

Local repair costs for pilot light issues range between $125 and $250 for cleaning or thermocouple replacement. If the gas valve or ignition system fails, the cost can exceed $500 on older furnaces. Honest Fix technicians perform pressure checks, CO safety tests, and vent inspections on every service call. To prevent future flame loss, homeowners should seal basement drafts, add vent caps, and schedule annual fall maintenance before the first deep freeze hits Brilliant.

  • Seal basement drafts and utility penetrations
  • Add vent caps or draft diverters
  • Schedule annual fall furnace maintenance
  • Have gas pressure and CO safety tested

FAQs

Why does my pilot go out when trucks pass along Route 7?

Heavy traffic can create brief pressure changes that travel through unsealed vents. A flue cap or draft diverter usually resolves it.

Can basement moisture affect the pilot light?

Yes. Condensation on cold furnace parts encourages rust buildup and weakens ignition performance.

Is a yellow flame dangerous?

It can be. A yellow or flickering pilot indicates poor combustion, which may release carbon monoxide. Have it checked immediately.

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

Author: Alex Largent