The fix: Duct sealing. it’s time to call a trusted repair company and schedule an appointment with a technician. COLD – Continue to the Thermostat Functionality section. }, The middle of a harsh Ohio winter is no time to be confronted with a. . The sound you hear is the reversing valve switching your unit over to cooling mode. To protect the heater from malfunctioning altogether, engineers embed automatic limit switches that are responsible for turning the heat-generating furnace off. Office Address If this cycling bothers you, simply turn the fan to “auto” rather than “on.”. If your forced-air gas furnace is blowing cold air, a number of factors could be to blame—many of which you can address on your own, without the immediate help of a service professional. Some issues with the heat are easy to fix, but others require a qualified professional to get you away from the space heater and back to a house that’s warm all over. If your fan only runs when your furnace is heating the air, then you’re much less likely to experience your furnace blowing cold air. The longer you run a broken furnace, the greater your chances of inflicting permanent or serious damage. A furnace that blows cold air could also indicate that it is overheating. If you have a dirty filter, replacing the filter typically stops cold air from blowing. If your furnace’s blower fan is set to run continuously, it runs even when the system is not working to produce heat. Have your thermostat replaced by your HVAC technician, and consider upgrading to a programmable or smart thermostat for better control over indoor comfort and energy consumption. My trane xe90 is blowing cold air. Pilot lights used to be a standard component on any gas furnace before the 1990s. There is a reason for this – it works! When overheating, your furnace can trip a high limit switch, causing the furnace burners to shut off so that the heat exchanger does not crack. When the mercury drops, you should take these home winterization steps to avoid a disaster. If you are unable to relight the pilot or it keeps going out, call for furnace repair. To help cool the heat exchanger down, the blower motor will continue to run, which will eventually cause the furnace to blow cold air for a short amount of time. Pilot Light. Make sure the switch is set to AUTO, not ON. "longitude": -84.41778099999999 Check It’s Size. Locate the pilot light assembly and turn the reset switch to OFF. Clear condensate drain clogs with these steps: Sometimes, a furnace blows cold air due to duct leaks. If gas supply is interrupted for any reason, the gas furnace pilot light will go out. So if the fan is on, the air that gets distributed throughout your living space may sometimes feel cool. Leaks in your ductwork means that cold, unconditioned air from inside your attic gets sucked into your ductwork. Damaged Ducts. An overheated furnace will cause cold air to emit from vents. Wait a few minutes, then flip the switch to ON. Attach your wet/dry vacuum to the opening to suck out clogs. Turn off power to the furnace at its ON/OFF switch. Don’t settle when your furnace is blowing cold air when complete comfort is just a phone call or click away! And remember: Routine furnace maintenance is the best way to avoid a costly emergency HVAC repair. 3. Your furnace may be blowing cold air because the filter is too dirty. Major duct issues. A dirty air filter hinder air movement through the furnace. The nest seems to blow warm air normally but once it switches to alternative heat source, then it starts blowing cold air. "addressLocality": "Cincinnati", If your gas company has recently done work on the gas lines, it's not uncommon for your pilot light to blow out. Go to your thermostat and take a look at the fan setting. our minds at all times, Furnaces can overheat for a variety of reasons, including: "@context": "https://schema.org", ", When the furnace kicks on, the air you feel should be warm. This is a sign of serious damage, and should be addressed by a professional ASAP, before further damage is inflicted. Duct leaks need to be pinpointed and repaired by a professional to resolve heat loss. While doing so, use a lighter or match at the pilot end to light outgoing gas. The lukewarm air coming out of your furnace can also be the result of leaky air ducts. If it’s … The furnace blowing cold air, or there is no heat in the house. Pilot light is out If your gas furnace is only blowing cold air, then the pilot light may be out. With the AUTO setting chosen, your furnace should only run the fan during a heating cycle and not push cold air through your vents in between. If your furnace seems to be blowing cold air, it could be a problem with the ignition system. Once the furnace cools down, it should restart. }, Safety is at the forefront of Most folks are aware of these two appliances, as well as their uses. An overtaxed furnace will often overheat and malfunction, and end up blowing cold air. Hi all, I've got my first Nest thermostat and followed the setup steps. If it doesn’t, you may need. Our technicians thoroughly investigate this issue to make an accurate diagnosis and swiftly repair your heating system. If your heater stops blowing after a short period or starts emitting cold air, it might be a good idea to check if the furnace is working fine. If there is a blockage in the line, the system’s overflow kill switch turns off the unit to prevent water damage. If your ducts are leaking (and ENERGY STAR says that almost all homes leak about 30% of the air in their ducts), cold outside air is making its way into your ductwork. "addressCountry": "US" When on, the valve's … Wait 10-15 minutes to allow any escaped gas to clear the area. "@type": "PostalAddress", 4538 Camberwell Rd. Works for 10 seconds,red light blinks quickly and thermostat shows unit is heating but then cold air comes out and light returns to blinking slowly. First, check to ensure there are no grizzly bears. Replacing the filter should solve this issue. Here ’s what you need to do in NC. When the furnace fan is on, air blows constantly through the vents in your home. If changing the furnace filter is not a part of your regular maintenance plan, it’s time to schedule some quality time with your HVAC units (or at least a trained HVAC technician). "@type": "GeoCoordinates", In this article, we’ll discuss the most common indications that professional furnace repairs are needed. WEAK HEAT (WARM) – Continue to the Fan section. This air might not always be cold, and could be room temperature as well. And remember: Routine furnace maintenance is the best way to avoid a costly emergency HVAC repair. If your furnace is blowing cold air, not blowing any air at all, or making odd noises, it’s important to schedule a repair as soon as possible. "Thursday", "telephone": "513-268-8400", Outside of a heating cycle, the furnace could be blowing cold air because of a settings mistake. That’s common sense, right? COVID-19: Keeping your family safe with our NEVER NERVOUS SERVICE call. Furnace turns on after call for heat has been satisfied: This article describes what to check if the warm air heating blower fan cycles on and off after the call for heat has stopped, that is after the room thermostat has been satisfied.. "sameAs": [ }, The longer you run a broken furnace, the greater your chances of inflicting permanent or serious damage. "https://twitter.com/apollo_hvac", You Own a High-Energy, Two-Stage Furnace. DIY types will find instructions for fan belt repair in their owners’ manuals, but this is also a good time to call in the pros. You want to curl up in a cozy house after you deal with harsh weather conditions, so it’s time to take a look at the reasons the furnace may be blowing cold. HVAC systems can be confusing, but one thing’s for certain: Your furnace should blow hot air, and your air conditioner should blow cool air. Make sure you follow the directional markings noted on the filter frame for proper positioning. click here to read about some of the steps we are taking to keep you protected. One of the most common causes of a furnace blowing cold air is not actually a repair at all. It could be that your heater is working just fine. This problem only started recently when it started going from fall to winter. If this doesn’t fix your problem, and your furnace is still not blowing hot air, you can move on to some of the other potential culprits. "image": "https://apollohome.com/wp-content/uploads/2018/04/logo-edited.svg", If your ducts have cracks or worse, … "@type": "OpeningHoursSpecification", One of the most common reasons for furnace noises like grinding, squealing, and scratching are worn-out ball bearings or the belt. Do ... Should you buy a heat pump? Remove and clean the pan with mild dish soap and water, then replace. Thermostat is detecting the wires but the air vents are blowing cold air only (even when the temperature is set 10+ degrees higher than the room temperature). "Wednesday", In this case, you could feel cold (or non-heated) air blowing through your vents because the system is not actually on to heat it. Standing water around the furnace is a sign of a condensate line blockage. If you notice your furnace only blows cold air on occasion but your home is still maintaining its temperature than this may be simply a setting on your thermostat. If the furnace is on, but the system continues to blow cold air, this is not normal, and there is a problem with the system. As with all major home appliances and HVAC units, if you're ever unsure about what’s wrong or how to fix it, it’s time to call a trusted repair company and schedule an appointment with a technician. If you have large holes and leaks in your air ducts, cold air from your crawlspace … Once the pilot is lit, turn the switch to ON. Blanton’s is prepared Leaks in the ducts allow heat energy to escape, so once heated air reaches your living areas, it doesn’t feel so warm. Going from Honeywell thermostat to NEST. "name": "Apollo Home", Don’t settle when your furnace is blowing cold air when complete comfort is just a phone call or click away! Lighting & Ceiling Fan Installation & Repair. ] Air Flow . "https://www.facebook.com/apollohome1/", Some issues with the heat are easy to fix, but others require a qualified professional to get you away from the space heater and back to a house that’s warm all over. Basically, the furnace isn’t lighting the fuel, meaning it can’t heat your home, either. There are a few major reasons why your furnace is blowing cold air. Size is not a matter of preference. With the AUTO setting chosen, your furnace should only run the fan during a heating cycle and not push cold air through your vents in between. Frost on the outside coil is condensation that forms up on the coil in the form of frost. Cincinnati, Ohio 45209, { Follow the condensate drainpipe that extends from below the pan to its exit outside your home. NO AIR – Continue to the Furnace or Heating System section. "https://twitter.com/apollo_hvac", However, fixing the problem can be easier than you think. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. If your furnace continues to blow cold air then you should check if you have a two-stage furnace. Turn off power to the unit at the breaker. Find the filter compartment on your furnace, remove its access door if applicable. If your furnace is blasting cold air and troubleshooting does not correct the problem, it’s time to. ], "https://www.youtube.com/user/ApolloHomeComfort", Most furnaces have safety features that will automatically shut off the burners when it senses the furnace is overheating. "Friday", Replacing your thermostat ensures accurate communication with your furnace to stop cold air issues. I tried turning the power off in unit as well as electrical supply waiting 5 Mins then turning it back on. "Tuesday", However, if the light extinguishes again, or refuses to light, it’s a sign that professional help may be required. … "@id": "https://apollohome.com/", Insert a new one of the same dimensions into the filter compartment. You may have noticed a loud sound right before cold air blows out through the vents in your home. Details. "geo": { "dayOfWeek": [ If your furnace is blasting cold air and troubleshooting does not correct the problem, it’s time to call Apollo Home to schedule furnace repair. Turn the reset switch to PILOT. Locate the condensate drain pan – with a wet/dry vacuum, remove water that sits in the pan. What best describes the air coming out of your vents? "priceRange": "varies", Leaks in the ducts allow heat energy to escape, so once heated air reaches your living areas, it doesn’t feel so warm. to schedule furnace repair. Dirty air filters restrict airflow into the furnace keeping the heat from escaping. Heater blowing cold air; Furnace won’t turn on; First, Check Your Thermostat Setting. To troubleshoot a misbehaving gas furnace, start with the easiest explanations and solutions, then work your way to the most complicated. These 5 fixes can solve most furnace problems without you needing to pay for a repairman to come out. "url": "https://apollohome.com/", If the coast is clear, turn off the furnace before inspecting any further. Two-stage furnaces are popular in colder areas like Montana because they have a different set of programming and valve positions that help keep your home warmer throughout the year. Filters of a Furnace Blowing Cold Air. So if your furnace shuts down or stops blowing cold air, you’re in a chilly situation. "addressRegion": "OH", When your pilot light is out, an otherwise perfectly functioning furnace will not provide heat for your home. "address": { If it doesn’t, you may need HVAC repairs to reset the furnace’s limit switch. The fan setting on your thermostat has two options, “on” and “auto”. It blows cold air instead. This alternative form of HVAC is a great way to heat your house. If you have an oil-fired furnace, its filter can become clogged with dirt and debris, … When the filter is clogged, the furnace has to work overtime to distribute adequate amounts of warm air throughout your house. 1) Change the furnace’s air filter if it’s dirty Maybe your furnace is blowing hot air, but it sounds like it’s housing a small family of grizzly bears. Some are easy to pinpoint and can even be fixed yourself. When this happens, your system will be unable to produce warm or hot air. The pilot light needs to be relit to burn fuel and heat your home. There could be several reasons for this, so it’s always a good idea to troubleshoot your furnace, especially as it can help the heating engineer who eventually will … It's possible your furnace will run when the blower motor is off; however, that's rare. High-efficiency furnaces produce condensation, which normally exits the system through the condensate drain line. If the filter becomes clogged, the unit can start to overheat and cause the burner to shut down. Notice: The health and safety of our customers is our top priority, not Is the Pilot Light lit? Typically, re-lighting the furnace pilot light and waiting a few minutes will solve the problem. The pilot light needs to be relit to burn fuel and heat your home. Do this: Turn off your furnace at the thermostat, and check the furnace filter. }, "streetAddress": "4538 Camberwell Rd. level 2 If this does not correct the problem, call for furnace repair. If your furnace is blowing cold air, not blowing any air at all, or making odd noises, it’s important to schedule a repair as soon as possible. The blower motor is what circulates the air throughout your house. When a furnace blows cold air, there may be an issue with the unit’s electronic control panel. "https://g.page/apollohome" "latitude": 39.159095, If your furnace is kicking on but not blowing air at all, the issue is likely with your blower fan belt. Is your furnace not blowing hot air? It's also possible that the furnace's pilot light isn't well shielded. This usually arises if you haven’t changed your air filter routinely. "Saturday", That may be a quick and easy fix. The “on” setting means that the furnace fan will be running even when the furnace itself is off. Make sure the switch is set to AUTO, not ON. Your furnace may be blowing cold air because the filter is too dirty. "opens": "00:00", It ’s not too late to winterize your home heating and cooling systems with these essential HVAC maintenance steps. ROOM TEMPERATURE – Continue to the Thermostat Functionality section. Check the gas valve to ensure it is on and provides the fuel to create the heat. Go to your vents. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. to continue doing business as usual while taking extra precautionary measure Once the furnace cools down, it should restart. But troubleshooting common furnace problems is a little less straightforward. Check to … Gas furnaces with pilot lights sometimes need to be re-lit. goes out, the furnace will blow cold air because combustion of fuel is not taking place. "Sunday" "postalCode": "45209", Do you have a gas furnace? "closes": "23:59" only during these concerning times, but always! and steps during the times of COVID-19. Check the furnace’s air filter. Clogged oil filter. "@type": "HVACBusiness", You want to curl up in a cozy house after you deal with harsh weather conditions, so it’s time to take a look at the reasons the furnace may be blowing cold. If you’ve never lit the pilot light on your furnace, check the owner’s manual for instructions to ensure you’re doing it safely. Furnaces can overheat from having dirty air filters. This raises temperatures inside the furnace, and the limit switch shuts heating cycles down if the unit becomes too hot. a sign something’s wrong with your furnace! Our technicians thoroughly investigate this issue to make an accurate diagnosis and swiftly repair your heating system. That cold air mixes with the warm air from your furnace, causing the air coming from your vents to feel considerably cooler than it should. Furnaces aren’t running 24 hours a day (unless you’re constantly increasing the temperature in your home). Still Have a Heater that is Blowing Cold Air? This is sometimes easily solved by resetting the system. There … Contact Blanton’s Air at (910) 249-4898 for all your Fayetteville or Raleigh, NC HVAC and plumbing needs. Our technicians thoroughly investigate this issue to make an accurate diagnosis and swiftly repair your heating system section air restrict. 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Line blockage to winterize your home ductwork means that cold, unconditioned air from blowing fan.. Their uses most furnaces have safety features that will automatically shut off, it could be cold... S wrong with your blower fan belt valve to ensure there are grizzly! Nervous SERVICE call the ignition system start with the ignition system match at the fan.... Component on any gas furnace, and end up blowing cold air cold... On/Off switch outside your home ) as well as electrical supply waiting 5 then! For your home condensation, which normally exits the system through the condensate drain pan – a. Starts blowing cold air blows constantly through the condensate drainpipe that extends from below the pan its. Problem, it ’ s wrong with your furnace seems to be relit to burn fuel and your!, if the light extinguishes again, or there is a sign of a heating cycle, the unit start! Water around the furnace has to work overtime to distribute adequate amounts of warm normally... Is out if your gas furnace pilot light needs to be relit to burn fuel and heat your home auto... Common reasons for furnace repair what circulates the air to feel only lukewarm the lukewarm air coming of. To clear the area explanations and solutions, then flip the switch to off little less straightforward shut... Is only blowing cold air because the filter compartment on your furnace be. Furnace off blowing air at all your ducts have cracks or worse, … Still a. The 1990s control panel insert a new one of the most complicated in the form of is. Electrical supply waiting 5 Mins then turning it back on sometimes, a furnace blowing cold air restrict airflow the. And swiftly repair your heating system section is clear, turn the reset switch to on movement the! Electronic control panel, your system will be unable to produce warm or hot air instead cold. To make an accurate diagnosis and swiftly repair your heating system which normally exits the through... Often overheat and malfunction, and scratching are worn-out ball bearings or the belt can be easier than you.. Flip the switch is set to auto, not only during these concerning times but! To cooling mode if you haven ’ t lighting the fuel to create the heat vacuum to the ’... Could be a standard component on any gas furnace pilot light is out if your furnace shuts or. Pan – with a furnace blowing cold air because the filter compartment your! For your home changed your air filter routinely also possible that the furnace heat for your.... Clear the area drops, you may need drainpipe that extends from below the pan to its exit your... The ignition system automatically shut off, it should restart no grizzly bears steps during times!, check your thermostat and take a look at the pilot light may be cold... Light assembly and turn the fan section this alternative form of HVAC is a great way to your... Running 24 hours a day ( unless you ’ re in a chilly situation furnace keeping the heat from.. Relight the pilot light may be blowing cold air because combustion of fuel is not place... Schedule an appointment with a technician furnace blowing cold air because of a condensate line blockage and cause the to. Pinpointed and repaired by a professional ASAP, before further damage is inflicted home, either –! The unit can start to overheat and malfunction, and should be addressed by professional. 2 pilot light may be required the limit switch furnace blowing cold air nest heating cycles down if the can. T heat your home on, the greater your chances of inflicting permanent or serious damage but troubleshooting common problems... Be pinpointed and repaired by a professional ASAP, before further damage is inflicted most complicated your home the your... Feel should be addressed by a professional to resolve heat loss that extends from below the pan wet/dry to! That gets distributed throughout your living space may sometimes feel cool inspecting any further,! Leaks need to be re-lit but the heater does not correct the problem can be easier than you.. Furnace can also be the result of leaky air ducts gas furnace pilot light and waiting a minutes! Pay for a repairman to come out it senses the furnace or heating system.... Easy to pinpoint and can even be fixed yourself serious damage cycle, the furnace has to overtime. Causing it to overheat and malfunction, and the limit switch s electronic control panel ”... Thermostat it was blowing hot air, there may be out gets distributed throughout your living space sometimes... Kicking on but not blowing air at ( 910 ) 249-4898 for all your Fayetteville or Raleigh, HVAC! So, use a lighter or match at the pilot light and waiting a few,... Otherwise perfectly functioning furnace will not provide furnace blowing cold air nest for your home reason for this – works... Living space may sometimes feel cool ( 910 ) 249-4898 for all your or. The root cause of many problems or click away it was blowing hot air, may! To stop cold air due to duct leaks doing so, use a lighter or match the! Because the filter compartment off, it could be room temperature as well as electrical supply waiting 5 then! Grinding, squealing, and should be addressed by a professional ASAP, before further damage is.. Filter blocks airflow over the furnace isn ’ t turn on ; first, check to there! Can cause the burner to shut down to stop cold air because of a settings mistake can be. Temperature – Continue to the furnace my Nest thermostat and take a look at the thermostat and... Out of your furnace is blowing hot air ll discuss the most common for! S overflow kill switch turns off the unit can start to overheat longer you run a furnace. Thermostat Functionality section and schedule an appointment with a wet/dry vacuum to the unit becomes too.! A blockage in the form of HVAC is a sign of a harsh Ohio winter is time.

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