Top-rated independent heating and cooling across South Florida
Ignitor & Flame Sensor Repair
We repair and replace furnace ignitors and flame sensors for homeowners across Florida, and it is one of the most common heating repair calls we get on the first cold morning of the year. The signs are familiar: the furnace clicks or hums, tries to light, then shuts down after a few seconds and starts over. Sometimes you get warm air for a minute and then cold. Set the thermostat to heat, check the breaker, then call us and we will come look at the ignition side.
Call (888) 560-0120- You reach a person, not a menu
- Open every day
- The quote comes first, in writing
Taking calls until 5:00 PM ET
What ignitor and flame sensor repair involves
A furnace lights in a set order, and the ignitor and flame sensor are two links in that chain. The ignitor heats up or sparks to light the burners. The flame sensor then confirms a flame is actually present, and if it does not see one, the control board shuts the gas off on purpose. That safety shutdown is the furnace doing its job. Our work is finding out which part failed, why, and putting the sequence back in order. This is gas and high-voltage work, so leave it to us.
What we check and what we replace
We start by watching a full heating cycle so we can see where it stops. We read the control board fault codes, test the ignitor for continuity, and measure the microamp signal the flame sensor is sending back. A sensor coated in oxide film reads weak and trips the lockout. Sometimes cleaning restores it, and sometimes the part is done. We also check gas pressure, the pressure switch, and the venting, because a lazy flame can look like a sensor problem when the real fault is airflow. We carry common ignitors and sensors on the truck.
How we decide this is the right repair
We decide by measurement, not guesswork. A cracked ignitor with no continuity is a clear replacement. A sensor reading well below spec after cleaning gets replaced too. But if the flame itself is unstable, or the heat exchanger shows signs of trouble, replacing a sensor only buys you a week and hides something serious. In that case we tell you plainly what we found and what the options are. If your furnace is old and the same lockout keeps coming back, we will walk through repair against replacement with you.
Other furnace repair work
What you get on every job
Written quote before any work
Covering 119 cities across Florida.A real person answers
Open 7 days, 8:00 AM to 5:00 PM ET.All major brands serviced
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 is usually the flame sensor. It is not confirming a flame, so the control board closes the gas valve as a safety step. A dirty or failing sensor is the common cause and we test it directly.
Can I clean the flame sensor myself?
We do not recommend it. Reaching the sensor means opening the burner compartment on a gas furnace, and that is not a homeowner job. Call us and we will clean or replace it and verify the reading.
Do I smell gas around a bad ignitor?
If you smell gas, leave the building first. Call 911 or your gas utility from outside, and do not touch switches or the thermostat. Once they clear the property, call us for the heater repair.
How it works
- Step 1
Tell us the symptom
Call or fill in the quote form and describe what changed. Warm air, short cycling, a breaker that keeps tripping, water stains on the ceiling. That detail helps us bring the right parts.
- Step 2
We diagnose on site
A technician checks the thermostat, the electrical side, refrigerant performance, airflow and the condensate line. We find the actual cause instead of swapping parts and hoping the problem stays away.
- Step 3
You approve the repair
We explain what failed, what it takes to fix it, and how long the part is likely to last. Nothing gets replaced until you say go, and we test the system before leaving.
- A real person answers
- Open 7 days
- Written quote before work starts
Why homeowners call us
- Built for the salt airCoastal Florida is hard on outdoor equipment. Coils corrode, contactors pit, fan motors seize early. We look for that damage during every air conditioning repair so a small failure does not take the whole system down.
- Condensate lines we actually clearBy late summer, drain lines clog with algae and shut systems off on the float switch. We clear the line, check the pan and the safety switch, and show you what caused the backup.
- Heating tooCold snaps still arrive. We do heating repair and heater repair on heat pumps, strip heat and furnace repair where homes have one, so the system works in January as well as August.
- Plain talk about older systemsIf a repair makes sense, we repair it. If a unit is failing in ways that will keep costing you, we say that too and lay out the options. You decide, not us.
- All major brands, gas & electricEvery major HVAC brand, gas and electric, handled by an independent crew.
- Straight answersWhen a replacement beats a repair, we tell you, sometimes before we roll a truck.
Ignitor & Flame Sensor Repair
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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