(888) 560-0120

Homeowners' pick for heating and cooling across central Kentucky and the Bluegrass

Ignitor & Flame Sensor Repair

We repair and replace furnace ignitors and flame sensors for homeowners across Kentucky, Indiana, Ohio, Tennessee, West Virginia and Georgia. If your furnace hums, clicks, lights for a few seconds and then shuts back off, or locks out after three or four tries, one of those two parts is usually the reason. Set your thermostat to heat, check the breaker and put in a clean filter, then call us and we will get a technician out to look at the ignition sequence.

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  • Open every day
  • The quote comes first, in writing

Taking calls until 5:00 PM ET

HVAC technician at work

What the job involves

A furnace has to prove two things before it will keep running: that it made a flame, and that the flame is still there. The hot surface ignitor lights the gas, and the flame sensor tells the control board the burn is real. When the ignitor cracks or the sensor gets coated, the board does the safe thing and shuts the gas off. We open the burner compartment, watch a full call for heat, and find out which step is failing instead of guessing at parts.

What we check or install

We read the control board fault code, then measure the ignitor and the microamp signal the flame sensor is sending back. A weak signal often means a coated sensor rather than a dead one, and cleaning it properly is part of the visit. If the ignitor is cracked or out of range we install the correct replacement for your furnace model. We also look at the burners, the gas valve operation and the flue draft, because short cycling is sometimes a symptom of something further upstream.

How we decide it is the right call

Symptoms guide us. A furnace that never lights and gives no glow usually points at the ignitor or its circuit. One that lights, runs eight to ten seconds and drops out points at the flame sensor. We confirm with readings before we replace anything, and we tell you honestly if the real problem is a cracked heat exchanger, a failing board or an aging furnace where repair no longer makes sense. If you ever smell gas, leave the house, call 911 or your gas utility, then call us.

What every visit includes

Written quote before any work

Covering 125 cities across Georgia, Indiana, Kentucky and 3 more.

You reach a person, not a menu

Open 7 days, 8:00 AM to 5:00 PM ET.

Every major brand, gas and electric

Carrier, Trane, Lennox, Goodman and more. We are not an authorized dealer for any of them.

Ignitor & Flame Sensor Repair — quick answers

Why does my furnace light and then shut off after a few seconds?

That pattern almost always means the flame sensor is not confirming the burn. A coated or failing sensor makes the control board close the gas valve as a safety step. We measure the signal and clean or replace the sensor.

Can I clean the flame sensor myself?

We do not recommend it. Reaching the sensor means opening the burner compartment around gas and high voltage wiring. Safe checks at home are the thermostat, the breaker, the filter and making sure vents are open.

How long does an ignitor replacement take?

Most ignitor or flame sensor visits are done in one trip, including testing a full heat cycle afterward. If your furnace is an older model needing a less common part, we will tell you the timeline before we leave.

How it works

  1. Step 1

    Tell us the symptom

    Call or fill in the quote form and describe what changed. Warm air, no air, a smell, a noise, a breaker that keeps tripping. That detail tells us what parts to bring along.

  2. Step 2

    We diagnose on site

    We check the thermostat, the electrical side, airflow and the equipment itself before we quote anything. If the problem sits in the ductwork rather than the unit, we say so plainly.

  3. Step 3

    We repair and explain

    Most air conditioning repair and heating repair work finishes in one visit. We show you the failed part, explain what caused it, and tell you what to watch for next season.

Call (888) 560-0120
  • A real person answers
  • Open 7 days
  • Written quote before work starts

Why homeowners call us

  • Propane and dual fuelPlenty of homes in our service area run propane heat or a dual fuel setup with a heat pump. We know how those systems switch over and why a bad changeover setting can leave you cold and burning fuel.
  • Older houses, added ductworkFarmhouses often got ducts decades after they were built, run through crawl spaces and attics. When the equipment tests fine but rooms still fight each other, we look at the duct runs and static pressure.
  • Repair before replacementA failed capacitor, a cracked wire, a clogged drain or a bad control board is a repair, not a new system. We tell you when the equipment is genuinely finished and when it is not.
  • Plain talk on the phoneWe ask what the thermostat reads, whether the outdoor unit is spinning, and when it last worked normally. That two minute conversation often shortens the visit and keeps the repair cost down.
  • All major brands, gas & electricCarrier, Trane, Lennox, Goodman, Rheem, York and more, as an independent company.
  • Straight answersIf a system is not worth repairing, we say so, often right on the phone.

Ignitor & Flame Sensor Repair

Part ofFurnace Repair
QuoteWritten, upfront
Gas & electricBoth
Open7 days

Ready to book ignitor & flame sensor repair?

Describe the system and your ZIP. The written quote comes before any work.

  • A real person answers
  • Open 7 days
  • Written quotes
  • All major brands
  • Gas & electric
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