From the hallway, a furnace that will not heat looks the same no matter what broke. Inside the cabinet, though, the sequence is strict: inducer on, pressure switch closed, igniter glowing, gas valve open, burners lit, flame proven, and finally the blower sending heat through the house. Diagnosis is mostly a matter of finding where that chain breaks. In Arlington homes, it tends to be the same handful of culprits: a flame sensor coated in oxide, a hot surface igniter cracked by thermal cycling, a pressure switch held open by a tired inducer or a plugged condensate trap, or a control board with a burned relay.
Our experienced technicians diagnose a furnace the way it operates, in order, measuring each stage as it happens. That means igniter resistance, microamp flame signal, pressure switch operation under actual inducer draft, gas valve voltage, and blower and capacitor condition. The safety checks come standard on a gas appliance: heat exchanger inspection, leak testing on the gas connections, and flue draft verification, since a hazard is not visible at the thermostat. We finish by checking temperature rise against the data plate, making sure the burner and blower are matched the way the manufacturer designed them to.
Arlington HVAC services natural gas, propane, and electric furnaces of every major brand, from standard 80 percent units to condensing high-efficiency models with their traps, drain lines, and dual pressure switches. Our trucks carry the parts that actually fail, such as igniters, flame sensors, pressure switches, capacitors, inducer assemblies, and blower motors, so most homes have heat again before we leave. Call (682) 214-6720 for furnace repair anywhere in Arlington, and an experienced technician will be on the way today.
Cooling trouble instead? See AC Repair in Arlington.
How Much Does Furnace Repair Cost in Arlington?
The typical furnace repair in Arlington lands between $150 and $600. The price depends on which part failed and how old the furnace is. Arlington HVAC tests the system, finds the actual fault, and quotes the repair before any work begins.
| Repair | Typical cost | What it usually means |
|---|---|---|
| Flame sensor cleaning or replacementBurners light but cut out almost immediately | $80–$250 | Burners light but cut out almost immediately |
| Hot surface igniter replacementNo ignition; one of the most common winter failures | $150–$400 | No ignition; one of the most common winter failures |
| Draft inducer motorLoud humming or grinding at startup, then lockout | $400–$1,000 | Startup fan fails, furnace won't fire |
| Blower motorNo airflow, or the blower runs nonstop | $400–$1,500 | No airflow, or the blower runs nonstop |
| Control boardErratic behavior, error codes, or no response at all | $300–$700 | Erratic behavior, error codes, or no response at all |
| Gas valve replacementValve fails to open, so the furnace never lights | $250–$700 | Igniter glows but gas never flows to the burners |
Typical ranges for common repairs. Your exact price is quoted after diagnosis.
Factors That Change the Price
- The age and efficiency of the furnace, since high-efficiency models use more specialized parts
- A cracked heat exchanger, which is a safety issue and usually points to replacement
- Same-day or after-hours service versus a planned visit
- Access to the furnace in attics, closets, or crawlspaces
When a repair gets expensive on an aging furnace, you'll see both options before deciding. Call (682) 214-6720 for a quote.
Warning Signs for Furnace Repair
Catching these issues early helps you avoid costly problems and protect your property. These are the signals our technicians see most often when a problem is underway:
- Booming or banging at light-off from delayed ignition
- Yellow, wavering burner flames where they should be sharp blue
- The igniter glows and clicks, yet no flame ever appears
- Grinding or high-pitched squeals from the blower
- A fan that keeps running while the registers blow cool air
- Repeated shutdowns just seconds after the burners light
- Short cycling every few minutes without reaching the setpoint
- Rust streaks, soot, or water around the cabinet or flue
Don't Wait for a Total Failure
A failing capacitor, clogged condensate drain, or dirty flame sensor rarely fixes itself and usually gets more expensive to address the longer it runs. If you notice any of these signs, contact Arlington HVAC at (682) 214-6720 for a prompt inspection.
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Get Help: (682) 214-6720Frequently Asked Questions About Furnace Repair
Why Professional Furnace Repair Matters
A furnace combines gas, flame, high voltage, and a flue in one cabinet, and the failure that matters most is the one you cannot see from outside: a compromised heat exchanger passing combustion gases into the air your blower pushes through the house. Delayed ignition that booms at light-off stresses that exchanger further every morning it goes unfixed. Meanwhile the diagnostic traps stack up: a furnace that trips its high limit may have a bad switch, or it may be protecting itself from a clogged filter or a dying blower, and replacing the switch in the second case just removes a safety while leaving the fault.
Our experienced technicians look at every symptom in the context of the whole furnace. We measure flame signal instead of assuming it, which keeps us from replacing a healthy sensor while a cracked igniter or weak gas valve goes unnoticed. Draft is confirmed at the pressure switch and at the flue. Temperature rise is checked against the data plate, catching airflow problems before they cut years off the heat exchanger. The gas side is leak-tested with instruments, never with a quick sniff. The result is a furnace proven safe over a full cycle, plus an honest opinion if the unit is getting close to the point where replacing it beats repairing it again.
What to Expect From Our Furnace Repair
We follow a proven process to ensure every repair and installation is completed to the highest standards. Here's what you can expect when you choose Arlington HVAC:
Sequence Diagnosis
We watch the furnace's startup sequence and measure at every stage: inducer draft, pressure switch, igniter resistance, flame signal, and gas valve operation, to find exactly where it breaks.
Safety Inspection
On every visit, we inspect the heat exchanger, leak-test the gas connections, and confirm the flue is drafting. A repair is not complete until the unit is proven safe.
Targeted Repair
The typical repair finishes in one trip. The common failure parts, from igniters and flame sensors to pressure switches, capacitors, and motors, are stocked on the truck and ready to go.
Final Cycle Testing
The last step is a full-cycle test: temperature rise matched to the data plate, smooth ignition with no booming, and every limit switch and safety control confirmed working.
Not Sure What You Need?
We provide honest advice and upfront pricing on all furnace repair work.
Call (682) 214-6720 TodayHow to Prevent Furnace Repair Problems
Smart maintenance is almost always cheaper and easier than an early replacement. Here are our expert recommendations:
- Make sure the furnace has clear combustion air; a packed utility room starves the burners
- Test your CO detectors monthly and make sure each floor has one
- Listen at light-off; clean ignition is quiet, and booming means the burners need service
- Have the furnace checked every autumn, while a weak igniter or fouled sensor is still an easy fix
- Keep storage, lint, and especially chlorine-based products away from the furnace closet
- Put in a fresh filter monthly through the heating season, the cheapest protection your furnace can get
- On high-efficiency models, keep the condensate trap and drain line clear and draining
DIY vs. Professional Furnace Repair
Online tutorials may help in a pinch, yet lasting repairs and code-compliant installations usually depend on professional methods and trained technicians. Consider the following comparison:
| Factor | DIY Attempt | Professional Service |
|---|---|---|
| Heat Exchanger | Cracks invisible from the outside | Checked every time we open the unit |
| Ignition Faults | Parts swapped against a code list | Igniter, sensor, and valve each metered |
| Gas Safety | Connections judged by smell | Connections leak-tested with instruments |
| Limit Trips | Limit replaced, cause left behind | Filter, blower, and ducts checked for the cause |
| Airflow Match | Fan speed never checked | Temperature rise set to the data plate |
| Final Check | It lit once, call it fixed | Complete cycles tested before we leave |
Talk to a Furnace Repair Expert
Every day you wait puts more strain on a struggling unit. Get Arlington HVAC on the job today.
Call (682) 214-6720 TodayFurnace Repair Near Arlington
We bring furnace repair to homes and businesses in town and across the nearby communities. Pick your area to see local details.