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Get your free estimateAmerican Standard Furnace Repair in Marietta: What to Know First
American Standard furnace repair in Marietta typically runs $150 – $700 depending on the failure, and most jobs are completed the same day we diagnose them. We’re an independent American Standard service provider, which means we can repair any American Standard furnace without being locked into the manufacturer’s service network or pricing. You get a written price before any work starts, a technician introduced to you by name and photo before arrival, and a repair backed by our 365-Day Done Right Promise.

This page is for Marietta homeowners with an American Standard furnace that is short-cycling, blowing cold air, making noise it never made before, or refusing to start at all. If that describes your situation, call (478) 662-5175 and tell us what the furnace is doing. We’ll tell you what it most likely needs and what it will cost to fix it.
Key Takeaways:
- Most American Standard furnace repairs in Marietta run $150 – $700, parts and labor included.
- We’re independent: we work on American Standard furnaces without manufacturer restrictions, and we use OEM or equivalent parts based on what is actually best for your system.
- Every job gets a written quote before work begins. No exceptions.
- Your technician is background-checked, identity-verified, and introduced to you by name and photo before they step onto your property.
How American Standard Products Fail – and How We Fix Them
Every furnace brand has its patterns. After the better part of three decades working on residential HVAC across the South, we know American Standard’s patterns well. Here are the failures we see most often in Marietta homes, with the line or series where each shows up most.
- Ignitor failure on the Silver and Gold series. American Standard uses hot-surface ignitors, and they are a wear item. You’ll typically see this as the furnace clicking, then shutting down without lighting. The part itself is relatively inexpensive, but it fails more often if the furnace is running hard through cold snaps, which Marietta gets enough nights for. We keep common ignitors on the truck and can almost always replace one the same day.
- Pressure switch errors on the S9X series. The S9X line is high-efficiency, which means it condenses. In the older homes around Marietta Square and the Kennesaw Avenue corridor, we regularly see condensate lines that were never sloped quite right, or that have clogged after years of use. The furnace reads that as a pressure switch fault and locks out. The fix is cleaning or re-sloping the line, then verifying the pressure switch itself is still good. A less experienced tech will throw a new switch at it and leave; we test before we replace.
- Blower motor issues on the Freedom and S9V lines. Variable-speed motors move a lot of comfort, but their control modules fail in a particular way: the blower runs at low speed constantly, even with the system off. Homeowners describe it as a faint hum that never stops. The module can sometimes be replaced separately, which saves several hundred dollars versus a full motor assembly. We’ll check that before quoting you a motor.
- Heat exchanger concerns on older 80% units. American Standard’s 80% lines, including older Freedom 80 models, are tanks, but any heat exchanger will eventually show stress after 15-plus years of heating cycles. Marietta humidity accelerates rust on the exterior of the cabinet, but the real issue is interior stress cracking. We inspect the heat exchanger visually and with a combustion check when the symptoms suggest it. If cracks are confirmed, we’ll be straight with you: the right fix is often replacement, not repair. And we’ll walk you through the math before you spend a dollar.
- Gas valve sticking on the Gold and Platinum series. A sticking gas valve shows up as intermittent no-heat. The furnace will run fine for days, then not fire one morning. That is a safety concern, not just a comfort problem. We replace rather than attempt to repair a gas valve; the risk of a jury-rigged valve is not something we will accept. American Standard gas valves are widely available through supply houses, so we can typically source one within a day if our truck stock doesn’t match your particular unit.
Safety note: gas furnaces involve combustible fuel and high voltage. If you suspect a gas leak or smell gas, leave the house and call your utility immediately. Do not attempt to open the cabinet or test components yourself. Trained, background-checked technicians are the right call for gas valve work, heat exchanger inspection, and anything involving the gas line.
Styles & brands we work with







Our American Standard Furnace Repair Process
Here is exactly how a repair call goes when you call Brandt HVAC Co Marietta for an American Standard furnace issue.
- 1
You call, a live person answers. Day or night, weekends included. You tell us the symptoms. We schedule a window and send you the technician’s name and photo before they arrive.
- 2
The technician arrives, badge visible. They show a photo ID at the door. If the person at your door is not the person we told you to expect, that visit is on us.
- 3
They diagnose your American Standard furnace. Full system check: sequence of operation, error codes, gas pressure, ignitor resistance, flame sensor, safety circuits, and heat exchanger condition where the symptoms call for it. The diagnosis is methodical, and the technician explains what they found in plain language.
- 4
You get a written price. No work starts until you see the number and agree to it. The quote includes parts, labor, and any diagnostic work already done. It is the final price, not an estimate subject to change.
- 5
We repair it. Parts decision made with you: OEM when the warranty or system age suggests it is the right call, quality aftermarket when it saves you real money with no functional trade-off. The technician explains the part, what it does, and how long it should last.
- 6
We test and guarantee it. The furnace runs through multiple cycles before we clean up and go. You get a written guarantee stating exactly what is covered and for how long. If the repair fails within the guarantee period, we return free of charge under our 365-Day Done Right Promise.
See the difference
Before
After
Before
AfterWhat American Standard Furnace Repair Costs in Marietta
Being honest about price is the only way we know to do this. Here are the ranges you should expect for the most common American Standard furnace repairs in Marietta.
- Ignitor replacement: $150 – $300, parts and labor included.
- Flame sensor cleaning or replacement: $120 – $250.
- Pressure switch replacement: $200 – $400, depending on the specific switch.
- Condensate drain clearing or re-sloping: $150 – $350.
- Blower motor control module: $250 – $500. A full variable-speed blower motor runs higher, typically $450 – $700.
- Gas valve replacement: $300 – $600, including the valve and installation.
- Heat exchanger inspection: included when symptoms warrant; replacement is a separate discussion and typically points to system replacement rather than a patch.
What moves the price: the specific American Standard model, the age of the unit, the part’s cost on the day we source it, and whether the furnace is in a crawlspace or attic with limited access. Every quote is a written, fixed number before work starts. Call (478) 662-5175 for a free estimate on your American Standard furnace repair in Marietta.

Why Marietta Homeowners Call Brandt HVAC Co Marietta for American Standard Work
We built this company around a simple idea: you should know exactly who is walking through your door. Every Brandt HVAC Co Marietta technician is background-checked and identity-verified under the Threshold Verified standard. Before the visit, you get the technician’s name and photo. At the door, they show a photo ID. If anyone arrives who you were not told to expect, that visit is on us. That matters when you are home alone, when your kids are asleep upstairs, when your parents are visiting. It is not a marketing line; it is how we operate.
We know American Standard furnaces, and we service every other major residential brand too, including Carrier, Trane, and Lennox. That matters because when we tell you a repair is not worth making, it is not because we can’t handle the system. It is because the math says replacement is the honest call. Devin Marlowe has spent the better part of three decades working on HVAC systems across the South, and he built his reputation on straight-forward diagnostics. His signature phrase on a tricky call: “Tell me what it’s doing, and I’ll tell you what it needs – no guesswork, no upsell.”
The name Brandt comes from an old word for a firebrand, which is fitting for the work of keeping a home warm. It is also the standard we hold ourselves to on every job: a written price before work starts, a written guarantee on every repair, and a live person answering the phone 24 hours a day, seven days a week. Marietta homeowners call us because they want certainty, and that is what we deliver.
FAQs
No. As an independent contractor, we are not bound by American Standard’s service network, and a repair by a licensed HVAC company does not void your furnace’s warranty as long as the repair is performed correctly and documented. We use OEM parts where the system’s age and warranty status call for it, and quality aftermarket parts when the same fix can be done reliably for less. Your written repair receipt is your warranty documentation. If you are concerned about a specific warranty claim, call us at (478) 662-5175 and we will walk through it with you before any work begins.
Most American Standard furnace repairs in Marietta are diagnosed and completed the same day we arrive, and we staff trucks with common parts so we do not have to leave and come back for everything. Calls are answered by a live person 24/7, and we schedule emergency no-heat calls the same day whenever possible in the Marietta area. If you have no heat and a cold night is coming, call us at (478) 662-5175 rather than waiting to see if it starts.
The honest answer depends on the failure and the unit’s age. A $200 ignitor replacement gets you several more years on a 10-year-old furnace, and that is almost always the right call. A cracked heat exchanger on a 17-year-old 80% American Standard unit is different math: the repair cost is high, the system’s efficiency is low, and you are buying time, not solving a problem. Our rule is simple: if the repair costs more than a third of the value of the system and the unit is past 12 to 15 years old, we will tell you that replacement is worth considering. But we will never push you into it. The decision is always yours, made with a clear, written picture of both options. Call (478) 662-5175 for an honest assessment.
We use OEM American Standard parts whenever the situation calls for it, particularly on newer systems still under warranty or when a part’s tolerance is tight enough that aftermarket quality is a real question. For many common components like ignitors, flame sensors, and pressure switches, we use high-grade aftermarket parts from the same distributors that supply the trade, and we have seen them perform equal to OEM. We will always tell you which part we are quoting and why, and the written guarantee stands regardless of which one goes in your furnace.
Every American Standard furnace repair we perform comes with a written guarantee stating exactly what is covered and for how long. Under our 365-Day Done Right Promise, if the same repair fails within the guarantee period, we return and fix it again at no charge to you. No argument, no pro-rated fees, no second visit charge. That guarantee is in writing on every job, and it is the same promise we extend whether the repair is $150 or $700. Call (478) 662-5175 and ask us to put it in writing before your first repair.
If your American Standard furnace is giving you trouble in Marietta, call (478) 662-5175 now. You will get a live person, a straight answer, and a written price before any work starts. That is how we operate, and that is what your home deserves.
Written by Devin Marlowe, Owner, Brandt HVAC Co Marietta at Brandt HVAC Co Marietta, serving Marietta and nearby areas.