Carrier Furnace Repair Nationwide

Carrier Furnace Repair in San Antonio: What to Know First

Carrier furnace repair in San Antonio typically runs $150 – $700, and most jobs we see are completed the same day. We’re an independent Carrier service provider, not a Carrier corporate shop, which means we quote repairs at fair market rates rather than manufacturer list prices. If your Carrier furnace is acting up, call (361) 470-8872 and you’ll get a live person, a straight answer, and a written price before any work starts.

Call (361) 470-8872

This page is for homeowners in San Antonio with a Carrier furnace that won’t fire, won’t stay lit, or is making noise it didn’t make last winter. If you’re here because the house is cold and you’re not sure whether to call someone tonight or wait until morning, the answer is call now. Cold snaps in San Antonio are rare but they’re real, and a furnace that fails on the coldest night of the year is a problem you want a human to hear about at 2 a.m., not a voicemail system.

How Carrier Products Fail – and How We Fix Them

Carrier makes solid equipment. But every brand has its habits, and after years of running service calls across San Antonio, we know what breaks on these units before we even take the panel off.

• Infinity series (59MN7, 59TN6) pressure switch faults. These modulating furnaces are particular about airflow readings. When a San Antonio homeowner sees a “31” or “32” fault code on an Infinity thermostat, it’s often not the pressure switch itself. It’s a cracked collector box or a partially blocked condensate drain. We replace the collector box gasket and clear the drain line instead of throwing a new switch at it, which costs less and actually fixes the problem.
• Comfort series (58STA, 58SC) ignitor failures. These single-and two-stage units rely on a hot surface ignitor that gets brittle over time. In San Antonio, where furnaces sit idle most of the year, ignitors oxidize faster than in colder climates because they cycle through humidity swings. We stock nitride ignitors that outlast the original silicon carbide ones by years.
• Performance series (59TP6, 59SP5) blower motor capacitor fatigue. A furnace that hums but won’t push air, or trips the breaker on startup, usually has a failing run capacitor on the blower motor. Carrier uses a dual-purpose capacitor on some of these units that also feeds the inducer motor. We check both legs before replacing anything, so you don’t get a second service call next month.
• Infinity series heat exchanger stress cracks on older 58MVC units. The 58MVC was a workhorse, but after 10 to 14 years the primary heat exchanger can develop hairline cracks at the crimp points. This is a carbon monoxide risk. We inspect with a combustion analyzer on every tune-up, and if we find a crack, that’s a replacement conversation, not a patch job.
• Comfort and Performance series flame sensor buildup. A furnace that lights for three seconds and shuts off is almost always a dirty flame sensor. On Carrier units the sensor sits directly in the burner flame path and collects silica from the heat exchanger over time. We clean it with emery cloth, not sandpaper, which scores the rod and makes it foul faster next time.

Our Carrier Furnace Repair Process

Every job follows the same order, whether it’s a $160 ignitor replacement or a $650 gas valve job. No surprises, no mystery charges.

1. 1
   You call, a person answers. We answer live, 24/7. You tell us the symptom. We give you a window and a technician’s name and photo before anyone rolls a truck.
2. 2
   The technician arrives, badge first. They’ll be in a uniform with a photo ID that matches the name you were given. If someone shows up who you weren’t told about, that visit’s on us.
3. 3
   Diagnostic with you in the loop. We test the ignitor, flame sensor, pressure switch, and heat exchanger. Then we show you what we found and explain it in plain English. You’ll see the failed part if it’s something visual like a cracked ignitor.
4. 4
   Written price before work starts. We quote parts and labor in writing. Carrier OEM parts are used when the unit is under warranty or when it matters for performance. On out-of-warranty older units, we’ll offer a quality aftermarket option if it makes sense and tell you the trade-off.
5. 5
   Repair and test. We install the part, cycle the furnace through at least three full heat cycles, and check gas pressure and temperature rise against the unit’s data plate.
6. 6
   You get a written guarantee. Every repair is covered by our 365-Day Done Right Promise. If the same repair fails within a year, we come back free of charge, no argument.

What Carrier Furnace Repair Costs in San Antonio

Most Carrier furnace repairs in San Antonio fall between $150 and $700, parts and labor included. Here’s what that looks like by job type:

• Flame sensor cleaning: $150 – $200 (usually combines with a quick inspection)
• Ignitor replacement: $180 – $320
• Pressure switch replacement: $220 – $380
• Blower motor capacitor: $150 – $275
• Gas valve replacement: $350 – $700
• Heat exchanger inspection with combustion analysis: $80 – $200 as part of a tune-up

What moves the price is the part itself and whether your unit is an older model with harder-to-source components. Every job gets a written price before we touch anything. Call (361) 470-8872 and we’ll talk through the symptom and give you a realistic range on the phone so you’re not surprised when the estimate lands.

Why San Antonio Homeowners Call Brandt HVAC Co San Antonio for Carrier Work

Devin Marlowe and the Brandt HVAC Co San Antonio crew have been running service calls across San Antonio for years, and we’ve kept a lot of homes near the Pearl District livable through heat waves that make you question your life choices. Devin’s the kind of guy who remembers which customers have a dog that likes to supervise the repair. He quotes jobs straight: what’s broken, what it costs, what the warranty actually covers. No footnotes, no fine print.

The name Brandt comes from an old word for a firebrand. Keeping a home warm is literally in the name. We service all major residential brands, including Trane and Lennox, so if your Carrier is a decade old and it’s time for something new, we’ll quote you an honest comparison instead of pushing whatever’s on the truck. Every technician is background-checked and identity-verified through the Threshold Verified standard, and you get their name and photo before they arrive.

Frequently Asked Questions