Heating · Nationwide
Furnace repair
Most furnace no-heat calls are a dirty flame sensor, a failed hot surface igniter, a tripped limit or pressure switch, or a clogged filter. A tech reads the board's error code, tests each safety device, and checks for carbon monoxide before handing it back.
- Same-day appointments when available
- Licensed HVAC contractors
- Written price before any repair
In mild-winter regions, furnaces may sit idle for eight months and then fail on the first cold night with a dirty flame sensor or dusty burners. In northern states, furnaces run hard from October to April and wear out inducer motors and igniters.
Never ignore a furnace that keeps locking out. Safety switches shut it down for a reason, such as a blocked flue, cracked heat exchanger or restricted airflow.
Furnace Repair at a glance
- Category
- Heating
- Service area
- Nationwide
- Typical visit
- Read the fault code → Test ignition and safeties → Combustion and CO check → Repair and run test
- Urgent help
- Yes. Call for the fastest connection.
- Equipment covered
- Hot surface igniters, Flame sensors, Inducer motors, Pressure switches, Gas valves, Control boards, Heat exchangers
Symptoms
Signs you need furnace repair
- Cold air from the vents in heat mode
- Burners light then shut off after a few seconds
- Blinking LED code on the control board
- Loud bang at ignition
- Yellow or lazy flame instead of blue
Process
How the Furnace Repair visit works
- 1
Read the fault code
The board's LED pattern points to the failed component.
- 2
Test ignition and safeties
Igniter, flame sensor microamps, pressure switch, limit and rollout switches.
- 3
Combustion and CO check
Gas pressure, draft, and a CO test at the flue and room.
- 4
Repair and run test
Written price first, then a full heat cycle with temperature rise checked.
Cost
What affects Furnace Repair cost
Every contractor sets their own prices. These are the things that move the number. Ask for a written price before work starts.
- Part replaced (sensor, igniter, inducer, board, gas valve)
- Furnace age and warranty
- Attic or closet location
- Heat exchanger problems
Before the tech arrives
What you can safely do before Furnace Repair
Safe to try
- Replace the filter
- Check the furnace switch is on
- Make sure the gas valve is open
- Check the condensate trap on high-efficiency units
Stop and call
- If you smell gas, leave and call your gas utility or 911 from outside
- Don't bypass safety switches
- Don't remove the burner panel
FAQ
Furnace Repair questions
Why does my furnace turn on then off right away?+
The most common reason is a dirty flame sensor, which can't prove the flame so the board shuts the gas off. Other causes are a weak pressure switch or a blocked vent.
Is a cracked heat exchanger dangerous?+
It can be, because it may let combustion gases mix with house air. A tech will usually shut the furnace off and red-tag it until it is repaired or replaced.
Furnace Repair city guides
Furnace Repair in RenoFurnace Repair in SparksFurnace Repair in Carson CityFurnace Repair in Sun ValleyFurnace Repair in FernleyFurnace Repair in DaytonFurnace Repair in Minden & GardnervilleFurnace Repair in Incline VillageFurnace Repair in FallonFurnace Repair in ElkoFurnace Repair in DallasFurnace Repair in Fort WorthFurnace Repair in El PasoFurnace Repair in Los AngelesFurnace Repair in San DiegoFurnace Repair in AtlantaFurnace Repair in CharlotteFurnace Repair in LouisvilleFurnace Repair in BirminghamFurnace Repair in Oklahoma CityFurnace Repair in WashingtonFurnace Repair in BaltimoreFurnace Repair in RichmondFurnace Repair in ChicagoFurnace Repair in PhiladelphiaFurnace Repair in PittsburghFurnace Repair in ColumbusFurnace Repair in CincinnatiFurnace Repair in ClevelandFurnace Repair in IndianapolisFurnace Repair in Kansas CityFurnace Repair in St. LouisFurnace Repair in DenverFurnace Repair in Colorado SpringsFurnace Repair in Salt Lake CityFurnace Repair in AlbuquerqueFurnace Repair in BoiseFurnace Repair in SeattleFurnace Repair in PortlandFurnace Repair in BostonFurnace Repair in MinneapolisFurnace Repair in DetroitFurnace Repair in MilwaukeeFurnace Repair in OmahaFurnace Repair in CharlestonFurnace Repair in HuntingtonFurnace Repair in WilmingtonFurnace Repair in NewarkFurnace Repair in TrentonFurnace Repair in NewarkFurnace Repair in PatersonFurnace Repair in Cedar RapidsFurnace Repair in Des MoinesFurnace Repair in Iowa CityFurnace Repair in Kansas CityFurnace Repair in TopekaFurnace Repair in Overland ParkFurnace Repair in ProvidenceFurnace Repair in CranstonFurnace Repair in Little RockFurnace Repair in Fort SmithFurnace Repair in FayettevilleFurnace Repair in HartfordFurnace Repair in BridgeportFurnace Repair in New HavenFurnace Repair in StamfordFurnace Repair in JacksonFurnace Repair in NashuaFurnace Repair in ManchesterFurnace Repair in Sioux FallsFurnace Repair in CheyenneFurnace Repair in LaramieFurnace Repair in BozemanFurnace Repair in BillingsFurnace Repair in FairbanksFurnace Repair in PortlandFurnace Repair in RutlandFurnace Repair in AlbanyFurnace Repair in DaytonFurnace Repair in LexingtonFurnace Repair in SpringfieldFurnace Repair in TacomaFurnace Repair in Saint PaulFurnace Repair in San FranciscoFurnace Repair in SyracuseFurnace Repair in GreensboroFurnace Repair in SpokaneFurnace Repair in Long BeachFurnace Repair in ArlingtonFurnace Repair in BuffaloFurnace Repair in PasadenaFurnace Repair in AkronFurnace Repair in AlexandriaFurnace Repair in KnoxvilleFurnace Repair in Fort WayneFurnace Repair in AnaheimFurnace Repair in Santa BarbaraFurnace Repair in AuroraFurnace Repair in TulsaFurnace Repair in OaklandFurnace Repair in LittletonFurnace Repair in Silver SpringFurnace Repair in Winston-SalemFurnace Repair in WorcesterFurnace Repair in CantonFurnace Repair in GlendaleFurnace Repair in MariettaFurnace Repair in DuluthFurnace Repair in SalemFurnace Repair in WacoFurnace Repair in VancouverFurnace Repair in ShreveportFurnace Repair in OgdenFurnace Repair in MadisonFurnace Repair in PuebloFurnace Repair in Grand RapidsFurnace Repair in LancasterFurnace Repair in BoulderFurnace Repair in BethesdaFurnace Repair in SpringfieldFurnace Repair in Staten IslandFurnace Repair in SchenectadyFurnace Repair in PeoriaFurnace Repair in AuroraFurnace Repair in South BendFurnace Repair in BeavertonFurnace Repair in HarrisburgFurnace Repair in ChattanoogaFurnace Repair in DentonFurnace Repair in OlympiaFurnace Repair in RockfordFurnace Repair in FrankfortFurnace Repair in GaithersburgFurnace Repair in YorkFurnace Repair in PlanoFurnace Repair in GarlandFurnace Repair in SpringfieldFurnace Repair in FairfaxFurnace Repair in DecaturFurnace Repair in BloomingtonFurnace Repair in BloomingtonFurnace Repair in AndersonFurnace Repair in GaryFurnace Repair in JeffersonvilleFurnace Repair in RockvilleFurnace Repair in Ann ArborFurnace Repair in KalamazooFurnace Repair in IndependenceFurnace Repair in St. JosephFurnace Repair in FredericksburgFurnace Repair in RacineFurnace Repair in NorwalkFurnace Repair in TallahasseeFurnace Repair in LongviewFurnace Repair in BurbankFurnace Repair in IrvineFurnace Repair in InglewoodFurnace Repair in Santa MonicaFurnace Repair in Santa AnaFurnace Repair in OrangeFurnace Repair in BerkeleyFurnace Repair in TorranceFurnace Repair in WhittierFurnace Repair in Chula VistaFurnace Repair in FullertonFurnace Repair in VenturaFurnace Repair in ConcordFurnace Repair in OceansideFurnace Repair in White PlainsFurnace Repair in AllentownFurnace Repair in ScrantonFurnace Repair in ReadingFurnace Repair in LaurelFurnace Repair in BowieFurnace Repair in HenricoFurnace Repair in High PointFurnace Repair in YoungstownFurnace Repair in LansingFurnace Repair in SchaumburgFurnace Repair in Lee's SummitFurnace Repair in SpringfieldFurnace Repair in MidlandFurnace Repair in OdessaFurnace Repair in Fort CollinsFurnace Repair in Idaho FallsFurnace Repair in EscondidoFurnace Repair in Garden GroveFurnace Repair in OxnardFurnace Repair in San Luis ObispoFurnace Repair in HaywardFurnace Repair in RichmondFurnace Repair in Santa ClaraFurnace Repair in BellevueFurnace Repair in KentFurnace Repair in EverettFurnace Repair in YakimaFurnace Repair in YonkersFurnace Repair in UticaFurnace Repair in ManassasFurnace Repair in RestonFurnace Repair in FrederickFurnace Repair in AshevilleFurnace Repair in HyattsvilleFurnace Repair in MansfieldFurnace Repair in MuncieFurnace Repair in PalatineFurnace Repair in ArvadaFurnace Repair in Falls ChurchFurnace Repair in SuffolkFurnace Repair in GadsdenFurnace Repair in AnnistonFurnace Repair in JacksonFurnace Repair in SpringfieldFurnace Repair in LimaFurnace Repair in LafayetteFurnace Repair in TroyFurnace Repair in ElginFurnace Repair in JolietFurnace Repair in NapervilleFurnace Repair in WichitaFurnace Repair in EdmondFurnace Repair in NormanFurnace Repair in GreeleyFurnace Repair in PocatelloFurnace Repair in ProvoFurnace Repair in FlagstaffFurnace Repair in AlhambraFurnace Repair in CarlsbadFurnace Repair in Huntington BeachFurnace Repair in Newport BeachFurnace Repair in LancasterFurnace Repair in PalmdaleFurnace Repair in Mountain ViewFurnace Repair in Palo AltoFurnace Repair in Santa CruzFurnace Repair in Santa RosaFurnace Repair in PrescottFurnace Repair in SandyFurnace Repair in ShawneeFurnace Repair in LynnFurnace Repair in CambridgeFurnace Repair in New BedfordFurnace Repair in Niagara FallsFurnace Repair in HerndonFurnace Repair in TowsonFurnace Repair in WoodbridgeFurnace Repair in CharlottesvilleFurnace Repair in RichardsonFurnace Repair in MesquiteFurnace Repair in FremontFurnace Repair in SunnyvaleFurnace Repair in Simi ValleyFurnace Repair in Redwood CityFurnace Repair in San MateoFurnace Repair in BendFurnace Repair in RentonFurnace Repair in LowellFurnace Repair in BrocktonFurnace Repair in Fall RiverFurnace Repair in WaterburyFurnace Repair in West HartfordFurnace Repair in EdisonFurnace Repair in Toms RiverFurnace Repair in CamdenFurnace Repair in CliftonFurnace Repair in WarrenFurnace Repair in DearbornFurnace Repair in LivoniaFurnace Repair in EvanstonFurnace Repair in Lawrence
Furnace Repair by state
AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareFloridaGeorgiaIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMassachusettsMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWashington, D.C.West VirginiaWisconsinWyoming
Related
Services related to Furnace Repair
Furnace Repair guides
Need heating or cooling help now?
Call to be connected with a licensed HVAC contractor serving your ZIP code.