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Get your free estimateLennox Furnace Repair in Atlanta: What to Know First
Lennox furnace repair in Atlanta typically runs between $150 and $700 depending on what failed, and most jobs are completed in a single visit. As an independent Lennox service provider, we fix the full range of Lennox gas furnaces found in Atlanta homes, from older G-series units to the newer SLP and EL series, with a written price before any work starts. If your Lennox furnace is blowing cold air, short-cycling, or locked out with an error code, this page explains what’s actually going on and what it costs to make it right. Call (762) 465-4570 and a live person answers, day or night.
How Lennox Products Fail – and How We Fix Them
Lennox builds solid furnaces, but certain model lines have failure patterns we see repeatedly in Atlanta. Here’s what actually goes wrong and what we do about it.
- Ignitor failure on G50 and G60 series: These mid-2000s workhorse furnaces use a silicon nitride ignitor that gets brittle after years of heat cycling. The symptom is usually a furnace that hums, the gas valve clicks, but no flame appears. We replace the ignitor, verify the flame sensor, and the unit fires on the first try. Most ignitor replacements run $150 to $300 parts and labor included.
- Pressure switch nuisance trips on SLP98V units: The modulating SLP series is efficient, but Atlanta’s humid air and the occasional blocked condensate line can cause false pressure switch readings. The furnace locks out and shows a code. We clean the condensate trap, check the flue for obstructions, and replace the switch if it’s genuinely failed rather than just dirty.
- Heat exchanger stress cracks on ML193 and EL195 units: Any high-efficiency furnace can develop a cracked heat exchanger, but we see it more often in one-story Atlanta homes where units run long, consistent cycles. A cracked exchanger isn’t a repair; it’s a safety decision. We inspect with a camera, show you what we found, and give you an honest repair-versus-replace conversation with no fear-selling attached.
- ECM blower motor failure on the Elite series: The variable-speed blower motor in the EL296 and SLP99 lines occasionally dies due to voltage spikes from Atlanta’s summer storms. That’s a real cause we can trace, not a vague “motor’s bad.” We check line voltage, confirm the board is sending correct signals, and replace the motor at its actual failure point, not before.
- Gas valve solenoid wear on G51 and G61 models: These units run silent and reliable until the gas valve solenoid finally quits. The symptom is a furnace that tries to start, sparks, but no gas flows. A new OEM or matching aftermarket valve solves it. Cost runs $250 to $500 depending on the model.
Styles & brands we work with
Our Lennox Furnace Repair Process
Every Lennox job in Atlanta follows the same sequence, whether it’s a 1998 G40 or a newer ML296. Here’s how it goes from the first call to the walkthrough at the end.
- 1
You call, a live person answers. We take down the symptoms, the model number if you have it, and your address. Then we tell you who’s coming and when.
- 2
Your tech arrives and you already know their name. We text a photo and a short bio before we ring the bell. The technician shows a photo ID at the door. You verify it. That’s the Threshold Verified standard.
- 3
Diagnosis on the spot. We test the sequence of operation: inducer motor, pressure switch, ignitor, gas valve, burners, blower. We find the failed component and show you what’s wrong before quoting a dollar figure.
- 4
Written price, always. You see the exact cost on paper before any tool touches a part. No verbal estimates, no surprise line items. The written price is the price.
- 5
The repair, done right. We use OEM Lennox parts or equivalent aftermarket parts that meet or exceed spec, depending on what’s available fastest and what your warranty situation allows.
- 6
We test for a full cycle. The furnace fires, runs, cycles off. We check amperage on the blower, verify the thermostat call, and make sure nothing is short-cycling. Then we hand you a written guarantee covering the repair for 365 days under the Done Right Promise.
See the difference
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After
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After
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AfterWhat Lennox Furnace Repair Costs in Atlanta
Here are the numbers we actually use for Lennox work in Atlanta, not inflated ranges from a corporate pricing sheet.
| Repair Type | Typical Atlanta Price |
|---|---|
| Ignitor replacement (G50, G60, SLP) | $150 – $300 |
| Flame sensor cleaning or replacement | $120 – $220 |
| Gas valve replacement (G51, G61, ML series) | $250 – $500 |
| Pressure switch replacement (all lines) | $150 – $350 |
| ECM blower motor replacement (Elite series) | $450 – $700 |
| Heat exchanger inspection with camera | $90 – $150 (credited toward repair if we proceed) |
What moves the price: part cost from Lennox versus a matching aftermarket, furnace age and access, and whether multiple components failed. You get the written quote before anything is done. Call (762) 465-4570 for an exact number on your unit, not a ballpark.
Why Atlanta Homeowners Call Brandt HVAC Co Atlanta for Lennox Work
Plenty of HVAC companies will put “Lennox repair” on a website. Fewer can tell you why your particular Lennox model failed and what it means for the next five years. We can. Devin Marlowe grew up in Los Angeles, learned the trade at Los Angeles Trade-Technical College, and has spent his career diagnosing flame sensors, gas valves, and heat exchangers the same way: find the actual problem, then explain it in plain words. That’s what we do in Buckhead, Decatur, Sandy Springs, and the rest of metro Atlanta.
Every repair includes a written guarantee and the 365-Day Done Right Promise: if the fix fails within a year, the return visit is free. Phones are answered by a live person 24/7, not a voicemail tree. And if you ever wonder whether the person knocking is actually your technician, the Threshold Verified standard settles it, you were told who was coming, and you verify their badge before they enter.
We also service Carrier and Trane when those systems share a house with a Lennox unit, which happens more often in Atlanta than you’d think.
FAQs
No. Your Lennox equipment warranty covers the parts, not who installs them. As long as the repair is performed correctly and uses parts that meet Lennox specifications, your warranty remains intact. We document every repair so you have a record if a warranty claim ever comes up.
Same day or next morning for common parts like ignitors, flame sensors, pressure switches, and gas valves. We stock the parts that fail most often in Atlanta units and have direct supply lines for everything else. Call (762) 465-4570 and we’ll tell you based on your model number.
If the repair costs less than half the price of a new system and the heat exchanger is still solid, repair it. If the exchanger is cracked or the furnace is past 18 to 20 years old, replacement is usually the financially smarter choice. We’ll show you the heat exchanger camera footage and let you decide without pressure.
Usually, yes. Most Lennox furnace repairs are completed in one visit, especially common failures like ignitors and flame sensors with a same-day repair or next-day at the latest. Call (762) 465-4570 and we’ll confirm availability before you commit to any work.
The repair itself for 365 days: parts and labor. If the same component fails within that year, we return and fix it at no charge. That’s the written guarantee on every job, no fine print and no argument. Know what’s wrong, know what it costs, know it’s covered, that’s the whole deal.
Written by Devin Marlowe, Owner, Brandt HVAC Co Atlanta at Brandt HVAC Co Atlanta, serving Atlanta and nearby areas.