Lennox Furnace Repair Nationwide

Lennox Furnace Repair in Sandy Springs: What to Know First

Lennox furnace repair in Sandy Springs typically runs $150 to $700 depending on the part that failed and how deep into the system we need to go, and most repairs we complete on the first visit. We’re an independent Lennox service provider, not a manufacturer-authorized dealer, which means we answer to the homeowner, not a brand rep, and we stock or can source common Lennox parts within a day. This page is for Sandy Springs families with a Lennox furnace that’s misbehaving: short-cycling, rumbling, throwing an error code, or refusing to light on the first cold morning. Call (229) 490-2049 and a live person picks up, day or night.

Call (229) 490-2049

How Lennox Products Fail – and How We Fix Them

Lennox builds quality equipment, but every brand has a list of repeat offenders. These are the ones we see most in Sandy Springs homes, especially in the older neighborhoods where furnaces have been through a decade or more of Georgia shoulder-season humidity.

• G26 and G61 series: pressure switch flutter. The G26 (a workhorse from the late 90s and early 2000s, still in plenty of Sandy Springs basements and crawlspaces) has a known habit of the inducer motor’s pressure switch opening and closing during a call for heat. The furnace will ignite, run a few minutes, then shut down and retry. It often gets misdiagnosed as a bad control board. We test the inducer’s actual draft and the switch’s opening pressure before replacing anything, because a cracked collector box or a partially blocked condensate line can cause the same flutter. Fixing the real cause keeps a $180 switch from becoming a $700 board replacement that doesn’t solve anything.
• SLP98 and SLP99 series: ignitor carbon tracking. These modulating units are efficient but particular. The silicon nitride ignitors can develop a hairline carbon track that bleeds voltage to ground, so the ignitor glows but the gas valve never receives the full “open” signal. The furnace will try, fail, and lock out. It looks like a gas valve problem. We check ignitor resistance and surface condition first because it’s a $60 part instead of a $260 gas valve and about twenty minutes of labor.
• ML195 and EL195 series: rollout switch trips from air intake blockage. In Sandy Springs, leaves, pollen, and construction dust are constant. Single-stage Lennox units like the ML195 pull combustion air from around the burner box, and if that intake screens over, the burners get lazy and the rollout switch opens. We clean the intake, verify the switch’s reset behavior, and test burner flame pattern with a combustion analyzer so the issue doesn’t return the following week.
• EL296 and SL280 series: secondary heat exchanger condensation leaks. High-efficiency Lennox furnaces condense water inside, and over years the secondary heat exchanger’s gaskets can shrink and weep. You’ll smell a faint burnt-dust odor or see rust staining inside the blower cabinet. We do a visual and carbon monoxide check on every repair call, and if the exchanger is compromised, we’re honest about whether a repair is safe and worthwhile. Some furnaces have a lifetime heat exchanger warranty through Lennox, and we handle the paperwork on the parts claim as part of the job.
• Merit, Elite, and Dave Lennox Signature tiers: blower motor capacitor drift. Across every Lennox line, the blower motor’s run capacitor drifts out of spec over time. The symptom is a furnace that heats but moves air weakly, or a motor that hums before starting. It’s a $35 part and a fifteen-minute fix, but left alone it kills the blower motor itself. We check capacitance on every tune-up and every repair call, because a weak capacitor is the cheapest way we keep a $700 motor alive.

Our Lennox Furnace Repair Process

Every call we run follows the same path, so you know what’s coming before the truck pulls up.

1. 1
   You call (229) 490-2049. A live person answers, asks what the furnace is doing, and books a time window that works around your family’s schedule, not ours.
2. 2
   Arrival and protection. The technician arrives in uniform, slides on shoe covers and lays down drop cloths from the entry door to the equipment. We ask before moving anything and keep the work area quiet if there’s a sleeping kid or a nervous dog in the house.
3. 3
   Diagnosis and a written price. We trace the symptom to the part or condition causing it. Before any work starts you get a written price, which means you know the full number before we touch a screw. No brackets, no “we’ll see when we get in there.”
4. 4
   Parts decision. For Lennox repairs we default to OEM parts when they’re under warranty or when an aftermarket part would change how the furnace behaves. Some universal parts are perfectly fine and cost less; we’ll tell you when that’s the case and when it isn’t. We never put a knockoff gas valve or flame sensor in a Lennox unit.
5. 5
   The repair and the test. We install the part, run a full combustion and airflow check, and verify the furnace cycles correctly through at least two heating calls. We don’t leave until it’s actually working, not just “should be working.”
6. 6
   Cleanup and the photo. We vacuum the work area, pack out everything we brought in, and take a photo of the clean-up before we leave. That photo is part of every job, and it’s not an upsell. Then we walk you through exactly what we found, what we fixed, and what to keep an eye on.

What Lennox Furnace Repair Costs in Sandy Springs

Most Lennox furnace repairs in Sandy Springs land between $150 and $700, and knowing which end of that range you’re on comes down to the part.

• Ignitor replacement: $150 – $260
• Flame sensor cleaning or replacement: $90 – $160
• Pressure switch replacement: $180 – $320
• Blower motor capacitor: $130 – $200
• Gas valve replacement: $280 – $520
• Blower motor replacement: $450 – $700
• Control board replacement: $300 – $650

What moves the price: the age of the furnace, whether the part is under Lennox’s warranty, and whether the job requires a second visit for a part we don’t carry on the truck. Estimates are free, and the written price we give you before the work starts is the price you pay. Call (229) 490-2049 for an exact number on your furnace.

Why Sandy Springs Homeowners Call Meadowsweet Heating and Air Sandy Springs for Lennox Work

Luis Serrano has been turning wrenches on furnaces for nearly two decades, and the crew at Meadowsweet Heating and Air Sandy Springs has worked on Lennox equipment in this city long enough to know its quirks the way you’d know a familiar house. When we’re in Riverside or anywhere along the Chattahoochee, we know the older homes, the crawlspaces, the ductwork that’s seen a few floods and a few remodels. Every Lennox repair we do is backed by the 365-Day Done Right Promise: if it’s not right, we come back and make it right, no runarounds and no fine print. We also service Carrier and Trane, which means if you end up replacing a furnace and switching brands, we’re not trying to upsell you into one ecosystem. We start every job with the Cedarwell Care Promise: a written price before any work starts, background-checked uniformed technicians, and a home that’s cleaner when we leave than when we arrived. Shoe covers, drop cloths, and a photo of the clean-up, on every job, every time.

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