From the hallway, a furnace that will not heat looks the same no matter what broke. Inside the cabinet, though, everything happens in a strict order: inducer on, pressure switch closed, igniter glowing, gas valve open, burners lit, flame proven, and finally the blower moving heat through the ducts. Most of the diagnosis comes down to finding the broken link. In Savannah 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.
Rather than guess, Savannah HVAC tests the sequence stage by stage. We read igniter resistance, measure flame signal in microamps, check that the pressure switch responds to real inducer draft, confirm voltage at the gas valve, and test the blower and its capacitor. Because this is a fuel-burning appliance, the safety basics come with every visit: the heat exchanger gets inspected, gas connections get leak-tested, and draft gets verified. You cannot tell a furnace problem from a furnace hazard by looking at the thermostat. Before we leave, temperature rise is measured against the data plate so airflow and flame are matched as the manufacturer intended.
Conventional or condensing, gas, propane, or electric, we repair them all, across every major brand, including the traps, drains, and dual pressure switches that come with high-efficiency models. The parts most likely to fail are already stocked on the truck: igniters, flame sensors, pressure switches, capacitors, inducer assemblies, and blower motors. That is why the majority of no-heat calls end the same visit. If your furnace is down anywhere in Savannah, call (912) 205-2676 and we will get the burners lit today.
When the AC quits in summer, see AC Repair in Savannah.
How Much Does Furnace Repair Cost in Savannah?
Most furnace repairs in Savannah cost between $150 and $600. Ignition and sensor problems are usually the least expensive, while blower motors, control boards, and heat exchangers cost more. Savannah 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 replacementFurnace lights, then shuts off within seconds | $80–$250 | Burners light but cut out almost immediately |
| Hot surface igniter replacementFurnace clicks and tries to start but never lights | $150–$400 | No ignition; one of the most common winter failures |
| Draft inducer motorLoud humming or grinding at startup, then lockout | $400–$1,000 | Loud humming or grinding at startup, then lockout |
| Blower motorBurners run but little or no air comes out of the vents | $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 replacementIgniter glows but gas never flows to the burners | $250–$700 | Igniter glows but gas never flows to the burners |
These are common price ranges, not quotes. We confirm the exact price after diagnosing your system.
Factors That Change the Price
- Furnace age and type, because 90%+ efficiency models have more specialized parts
- A cracked heat exchanger, which is a safety issue and usually points to replacement
- Timing, such as a no-heat call on a cold night versus a scheduled repair
- 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 (912) 205-2676 to get your price.
Signs You Need Furnace Repair in Savannah
Spotting the early warning signs gives you the chance to act before the situation spirals into something far more expensive. Watch for these telltale signs that professional help is needed:
- The igniter glows and clicks, yet no flame ever appears
- Air moving through the vents that never gets warm
- A furnace that shuts off every few minutes before the house warms up
- Soot, rust, or moisture near the furnace cabinet or vent pipe
- Burners light, run a few seconds, then shut down repeatedly
- Booming or banging at light-off from delayed ignition
- A pilot or burner flame that is lazy yellow instead of crisp blue
- Squealing or grinding from the blower compartment
Early Action Saves Money
Most HVAC failures start small, a weak capacitor, a squealing blower, a system that runs a little longer each week. If you notice any of these signs, contact Savannah HVAC at (912) 205-2676 for a prompt inspection.
Ready to Solve Your Furnace Repair Problem?
Call our expert team for pricing today.
Call (912) 205-2676 TodayFrequently Asked Questions About Furnace Repair
Why Professional Furnace Repair Matters
The failure that matters most in a furnace is usually hidden. A cracked or corroded heat exchanger can let combustion gases into the airstream, and nothing about it is visible from the outside of the cabinet. Delayed ignition makes things worse, because each boom at light-off puts more stress on that metal. Add high voltage, a gas valve, and a flue to the same box, and the margin for error shrinks. Diagnosis is full of traps too. A high limit that keeps tripping could be a bad switch, or it could be doing exactly its job because a filter is clogged or the blower is dying, and replacing a good switch only hides the real fault.
Our experienced technicians treat every symptom as a question about the whole system. Flame signal gets measured rather than assumed, so a healthy sensor is never replaced while a cracked igniter or weak gas valve skates by. Draft is verified at the pressure switch and the flue. Temperature rise is checked against the data plate, which is how airflow problems get caught before they shorten the exchanger's life. And the gas side is leak-tested with instruments, not a sniff and a shrug. The result is a furnace that has been proven safe and correct under a full cycle, and an honest report if the unit is nearing the point where replacement beats another repair.
Our Furnace Repair Process
Every visit follows a step-by-step method refined over years of hands-on experience. Here's how we handle furnace repair from start to finish:
Step-by-Step Diagnosis
The furnace is run through its startup while we measure inducer draft, pressure switch response, igniter resistance, flame signal, and gas valve operation. The goal is to pinpoint the exact step that fails.
Combustion Safety Check
Every repair includes a safety check: heat exchanger inspection, instrument leak testing on the gas side, and flue draft verification, because a furnace that runs is not the same as a furnace that runs safely.
Expert Repair
Igniters, flame sensors, pressure switches, capacitors, and motors ride on the truck, so most furnaces are lit and heating again before we pack up.
Final Cycle Testing
We run complete cycles, measure temperature rise against the data plate, confirm clean ignition without booming, and verify every limit and safety control before we leave.
Questions About Furnace Repair?
We provide honest advice and upfront pricing on all furnace repair work.
Call (912) 205-2676 TodayFurnace Repair Prevention Tips
Smart maintenance is almost always cheaper and easier than an early replacement. Follow these tips from our experienced technicians:
- Test your CO detectors monthly and make sure each floor has one
- If you have a high-efficiency furnace, check that the condensate drain is flowing freely
- Book a fall tune-up so weak igniters and fouled sensors are caught before the first freeze
- Clear boxes, lint, and above all chlorine-based cleaners out of the furnace area
- Give the furnace room to breathe, since a crowded utility space starves the burners of air
- Replace the filter every month while the furnace is working hard, since it costs less than any other part
- Listen at light-off; clean ignition is quiet, and booming means the burners need service
Comparing DIY and Professional Furnace Repair
While some minor tasks like changing filters or checking a thermostat can be handled by homeowners, most HVAC work involves refrigerant, gas combustion, and high-voltage electricity, jobs that call for professional expertise. Consider the following comparison:
| Factor | DIY Attempt | Professional Service |
|---|---|---|
| Exchanger Cracks | No way to see a crack from outside | Inspected on every repair visit |
| Ignition Problems | Guesswork based on blink codes | Every stage measured before replacing parts |
| Gas Connections | Small leaks missed entirely | Instrument leak test on each visit |
| High-Limit Trips | A safety device jumpered out | The airflow fault behind the trip found |
| Airflow Match | Fan speed never checked | Rise measured and blower adjusted |
| Verification | Declared fixed after one flame | Full cycles proven clean and safe |
Talk to a Furnace Repair Expert
Every day you wait puts more strain on a struggling unit. Get Savannah HVAC on the job today.
Call (912) 205-2676 NowFurnace Repair Near Savannah
Wherever you are in the area, the same experienced team handles your furnace repair. Find your community below.