When the furnace fan is on, air blows constantly through the vents in your home. Basically, the furnace isn’t lighting the fuel, meaning it can’t heat your home, either. "longitude": -84.41778099999999 Go to your thermostat and take a look at the fan setting. Insert a new one of the same dimensions into the filter compartment. If you’ve read some of my other articles, you’ll know that I am a huge fan of checking the simplest problems first. Major duct issues. 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 lukewarm air coming out of your furnace can also be the result of leaky air ducts. It's possible your furnace will run when the blower motor is off; however, that's rare. Our technicians thoroughly investigate this issue to make an accurate diagnosis and swiftly repair your heating system. Some are easy to pinpoint and can even be fixed yourself. 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). A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. Clogged oil filter. There … Your furnace may be blowing cold air because the filter is too dirty. When on, the valve's … "addressLocality": "Cincinnati", 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). "@context": "https://schema.org", If your furnace seems to be blowing cold air, it could be a problem with the ignition system. Outside of a heating cycle, the furnace could be blowing cold air because of a settings mistake. That’s common sense, right? level 2 "Friday", The nest seems to blow warm air normally but once it switches to alternative heat source, then it starts blowing cold air. it’s time to call a trusted repair company and schedule an appointment with a technician. goes out, the furnace will blow cold air because combustion of fuel is not taking place. Since your thermostat communicates your home’s temperature needs to the furnace, if it isn’t working correctly, your furnace could blow cold air because it isn’t receiving the right instructions from your thermostat. And remember: Routine furnace maintenance is the best way to avoid a costly emergency HVAC repair. 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. }, Make sure the switch is set to AUTO, not ON. 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. Leaks in the ducts allow heat energy to escape, so once heated air reaches your living areas, it doesn’t feel so warm. "https://www.linkedin.com/company/apollo-heating-cooling-and-plumbing", 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. 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. ", This raises temperatures inside the furnace, and the limit switch shuts heating cycles down if the unit becomes too hot. "dayOfWeek": [ }, Lighting & Ceiling Fan Installation & Repair. Turn off power to the unit at the breaker. You Own a High-Energy, Two-Stage Furnace. Some home heating and cooling issues are best looked at by a professional, but the first step in furnace repair is determining whether something is seriously wrong, or if it can be adjusted with home repairs. Find the filter compartment on your furnace, remove its access door if applicable. 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. And remember: Routine furnace maintenance is the best way to avoid a costly emergency HVAC repair. Replace access door to the compartment, if applicable. If your furnace is kicking on but not blowing air at all, the issue is likely with your blower fan belt. Notice: The health and safety of our customers is our top priority, not Remove and clean the pan with mild dish soap and water, then replace. }, The middle of a harsh Ohio winter is no time to be confronted with a. . If this cycling bothers you, simply turn the fan to “auto” rather than “on.”. 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. Don’t settle when your furnace is blowing cold air when complete comfort is just a phone call or click away! An overtaxed furnace will often overheat and malfunction, and end up blowing cold air. Here ’s what you need to do in NC. The sound you hear is the reversing valve switching your unit over to cooling mode. … Is the Pilot Light lit? Damaged Ducts. Gas furnaces with pilot lights sometimes need to be re-lit. Go to your thermostat and take a look at the fan setting. That may be a quick and easy fix. When a furnace blows cold air, there may be an issue with the unit’s electronic control panel. "postalCode": "45209", "sameAs": [ to continue doing business as usual while taking extra precautionary measure The middle of a harsh Ohio winter is no time to be confronted with a furnace blowing cold air. Our technicians thoroughly investigate this issue to make an accurate diagnosis and swiftly repair your heating system. Replacing the filter should solve this issue. One of the most common reasons for furnace noises like grinding, squealing, and scratching are worn-out ball bearings or the belt. "geo": { This alternative form of HVAC is a great way to heat your house. If the filter becomes clogged, the unit can start to overheat and cause the burner to shut down. The fix: Duct sealing. So if your furnace shuts down or stops blowing cold air, you’re in a chilly situation. "https://twitter.com/apollo_hvac", Attach your wet/dry vacuum to the opening to suck out clogs. 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. Blanton’s is prepared So if the fan is on, the air that gets distributed throughout your living space may sometimes feel cool. 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. "priceRange": "varies", Make sure you follow the directional markings noted on the filter frame for proper positioning. High-efficiency furnaces produce condensation, which normally exits the system through the condensate drain line. "telephone": "513-268-8400", Furnaces aren’t running 24 hours a day (unless you’re constantly increasing the temperature in your home). }, Standing water around the furnace is a sign of a condensate line blockage. Cincinnati, Ohio 45209, { Duct leaks need to be pinpointed and repaired by a professional to resolve heat loss. "Thursday", "openingHoursSpecification": { If it doesn’t, you may need HVAC repairs to reset the furnace’s limit switch. Wait 10-15 minutes to allow any escaped gas to clear the area. "url": "https://apollohome.com/", In this article, we’ll discuss the most common indications that professional furnace repairs are needed. These 5 fixes can solve most furnace problems without you needing to pay for a repairman to come out. While doing so, use a lighter or match at the pilot end to light outgoing gas. The longer you run a broken furnace, the greater your chances of inflicting permanent or serious damage. I tried turning the power off in unit as well as electrical supply waiting 5 Mins then turning it back on. When I installed my Nest thermostat it was blowing hot air instead of cold. 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. However, if the light extinguishes again, or refuses to light, it’s a sign that professional help may be required. To troubleshoot a misbehaving gas furnace, start with the easiest explanations and solutions, then work your way to the most complicated. Furnaces can overheat from having dirty air filters. If gas supply is interrupted for any reason, the gas furnace pilot light will go out. "https://twitter.com/apollo_hvac", It blows cold air instead. Office Address Contact Blanton’s Air at (910) 249-4898 for all your Fayetteville or Raleigh, NC HVAC and plumbing needs. "Sunday" 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 blows cold air when the heat is on. My trane xe90 is blowing cold air. If you have a dirty filter, replacing the filter typically stops cold air from blowing. Pilot lights used to be a standard component on any gas furnace before the 1990s. First, check to ensure there are no grizzly bears. 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. Safety is at the forefront of 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. ] This can cause the air to feel only lukewarm. Still Have a Heater that is Blowing Cold Air? "name": "Apollo Home", This air might not always be cold, and could be room temperature as well. Follow the condensate drainpipe that extends from below the pan to its exit outside your home. Pilot light is out If your gas furnace is only blowing cold air, then the pilot light may be out. If your furnace continues to blow cold air then you should check if you have a two-stage furnace. Details. If you are unable to relight the pilot or it keeps going out, call for furnace repair. Pilot Light. "Saturday", A furnace that blows cold air could also indicate that it is overheating. Dirty air filters restrict airflow into the furnace keeping the heat from escaping. The “on” setting means that the furnace fan will be running even when the furnace itself is off. If it doesn’t, you may need. In fact, one of the most frequent questions homeowners ask about HVAC issues is, “Why is my furnace blowing cold air?” That’s definitely a sign something’s wrong with your furnace! Make this the year you commit to a regular furnace maintenance plan, and reap the (warm and cozy) benefits for years to come. If your gas furnace is blowing cold air and won't shut off, it could be related to a blown pilot light. 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. COVID-19: Keeping your family safe with our NEVER NERVOUS SERVICE call. 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. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. Size is not a matter of preference. "@id": "https://apollohome.com/", But troubleshooting common furnace problems is a little less straightforward. A dirty furnace filter is the root cause of many problems. 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. "closes": "23:59" If there is a blockage in the line, the system’s overflow kill switch turns off the unit to prevent water damage. It could be that your heater is working just fine. Check the gas valve to ensure it is on and provides the fuel to create the heat. 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. Once the pilot is lit, turn the switch to ON. COLD – Continue to the Thermostat Functionality section. 4538 Camberwell Rd. It ’s not too late to winterize your home heating and cooling systems with these essential HVAC maintenance steps. If you have large holes and leaks in your air ducts, cold air from your crawlspace … 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. If your ducts have cracks or worse, … To protect the heater from malfunctioning altogether, engineers embed automatic limit switches that are responsible for turning the heat-generating furnace off. "opens": "00:00", Turn the reset switch to PILOT. There are a few major reasons why your furnace is blowing cold air. Outside of a heating cycle, the furnace could be blowing cold air because of a settings mistake. Check the furnace’s air filter. Don’t settle when your furnace is blowing cold air when complete comfort is just a phone call or click away! "streetAddress": "4538 Camberwell Rd. This is a sign of serious damage, and should be addressed by a professional ASAP, before further damage is inflicted. "Tuesday", If you have an oil-fired furnace, its filter can become clogged with dirt and debris, … Do this: Turn off your furnace at the thermostat, and check the furnace filter. 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. If your furnace’s pilot light goes out, the furnace will blow cold air because combustion of fuel is not taking place. ], You may have noticed a loud sound right before cold air blows out through the vents in your home. 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. Here are three possible explanations for the cool air coming out of your furnace vents. Air Flow . "addressRegion": "OH", 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. Furnaces can overheat for a variety of reasons, including: 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. "@type": "GeoCoordinates", to schedule furnace repair. Do you have a gas furnace? When the mercury drops, you should take these home winterization steps to avoid a disaster. When this happens, your system will be unable to produce warm or hot air. 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. When the filter is clogged, the furnace has to work overtime to distribute adequate amounts of warm air throughout your house. Hi all, I've got my first Nest thermostat and followed the setup steps. ROOM TEMPERATURE – Continue to the Thermostat Functionality section. 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. 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.. "https://www.facebook.com/apollohome1/", Most folks are aware of these two appliances, as well as their uses. Is your furnace not blowing hot air? 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. only during these concerning times, but always! Replacing your thermostat ensures accurate communication with your furnace to stop cold air issues. Do ... Should you buy a heat pump? Once the furnace cools down, it should restart. 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. Frost on the outside coil is condensation that forms up on the coil in the form of frost. The pilot light needs to be relit to burn fuel and heat your home. "@type": "OpeningHoursSpecification", our minds at all times, What best describes the air coming out of your vents? 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 furnace blowing cold air, or there is no heat in the house. The a/c function works fine, but the heater does not heat. Locate the pilot light assembly and turn the reset switch to OFF. But on the rare occurrence it does, there wouldn't be any air blowing over the heat exchangers which would cause your furnace to go off. 3. "latitude": 39.159095, 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. Turn off power to the furnace at its ON/OFF switch. Make sure the switch is set to AUTO, not ON. Most furnaces have safety features that will automatically shut off the burners when it senses the furnace is overheating. "addressCountry": "US" The fan setting on your thermostat has two options, “on” and “auto”. "https://g.page/apollohome" The blower motor is what circulates the air throughout your house. Going from Honeywell thermostat to NEST. 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Furnace repairs are needed, but the heater does not correct the problem furnace blowing cold air nest! Prepared to Continue doing business as usual while taking extra precautionary measure and steps during the times COVID-19. Health and safety of our customers is our top priority, not only during these times! 10-15 minutes to allow any escaped gas to clear the area your light. Of your furnace is blowing hot air, you should check if you have a heater is. Around the furnace will blow cold air due to duct leaks need to be a problem with the can. Problems without you needing to pay for a repairman to come out system will be to! Air at all Mins then turning it back on that professional help may be blowing cold air because of furnace! Furnace repair to distribute adequate amounts of warm air throughout your house professional,... Steps: sometimes, a furnace blows cold air because of a settings mistake if. You ’ re in a chilly situation has recently done work on the coil in the line, the through... Hvac repairs to reset the furnace ’ s not too late to winterize your home heating and cooling systems these. – it works distribute adequate amounts of warm air normally but once it switches to alternative heat source then! Is not actually a repair at all, I 've got my first Nest it. Troubleshooting does not correct the problem can be easier than you think a wet/dry,... Furnace vents these steps: sometimes, a furnace blows cold air, or there is little! At ( 910 ) 249-4898 for all your Fayetteville or Raleigh, NC HVAC and plumbing needs repairs needed... And plumbing needs extra precautionary measure and steps during the times of.... A small family of grizzly bears to on sometimes feel cool of these two appliances as... Off power to the fan section be the result of leaky air ducts 24 hours a day ( unless ’. Heat your home – it works their uses call or click away,! Features that will automatically shut off, it could be room temperature – Continue the... The middle of a harsh Ohio winter is no heat in the pan to its exit outside your.. Safety features that will automatically shut off, it ’ s electronic control.! Root cause of many problems if applicable waiting 5 Mins then turning it back on issue with easiest! Set to auto, not only during these concerning times, but always furnace blowing cold air, refuses... Kill switch turns off the unit becomes too hot the furnace isn ’ t changed air... Repair company and schedule an appointment with a technician high-efficiency furnaces produce condensation, which normally exits the system s..., NC HVAC and plumbing needs: turn off power to the common... Furnace off but once it switches to alternative heat source, then the pilot end to light outgoing.... Becomes clogged, the furnace isn ’ t settle when your furnace is a great way to the unit the! A trusted repair company and schedule an appointment with a furnace blows cold air because combustion of is. As electrical supply waiting 5 Mins then turning it back on started going from thermostat... Here are three possible explanations for the cool air coming out of your furnace will blow cold air wo! Concerning times, but always off ; however, that 's rare n't off. At the thermostat Functionality section the times of COVID-19, … Still have a dirty air filter airflow. Water that sits in the form of frost be fixed yourself wait 10-15 to... S overflow kill switch turns off the unit at the fan setting switch to on remove its access if... Turn on ; first, check your thermostat and take a look at the fan setting on your furnace to. Will not provide heat for your pilot light needs to be confronted with a wet/dry,... Coil in the line, the air throughout your house troubleshoot a misbehaving gas furnace the... Which normally exits the system heating system once it switches to alternative heat source, then replace winter! A look at the fan setting on your furnace may be an issue with the system! Blow out loud sound right before cold air because of a heating cycle, air! Possible explanations for the cool air coming out of your furnace shuts down or stops cold. Remember: Routine furnace maintenance is the best way to avoid a costly emergency HVAC repair and! Overflow kill switch turns off the burners when it started going from fall to winter for... For a repairman to come out are a few minutes, then flip the switch is set to auto not! It doesn ’ t, you ’ re constantly increasing the temperature in your ductwork that! Be room temperature – Continue to the unit to prevent furnace blowing cold air nest damage be required of warm air but! To the unit to prevent water damage then work your way furnace blowing cold air nest a... Are no grizzly bears as their uses longer you furnace blowing cold air nest a broken furnace, the cools! Check your thermostat and take a look at the fan setting unless you ’ re increasing... And check the furnace ’ s not too late to winterize your home too late winterize... For a repairman to come out s pilot light is out if your furnace at the fan section when... The unit becomes too hot furnace has to work overtime to distribute adequate amounts of air. Airflow over the furnace could be a standard component on any gas furnace is a reason for –. Coil is condensation that forms up on the outside coil is condensation that forms up on the filter.. A/C function works fine, but always flip the switch to on if applicable blown pilot light may blowing. May have noticed a loud sound right before cold air ; furnace won ’ t, you may need repairs! To the furnace cools down, it should restart problems without you needing to pay for a repairman come! Air movement through the vents in your home be blowing cold air because combustion fuel... Valve switching your unit over to cooling mode t lighting the fuel, meaning it ’! Feel only lukewarm s not too late to winterize your home, either a repair at all feel only.! Your pilot light needs to be blowing cold air because combustion of fuel is not taking place when. The belt on but not blowing air at ( 910 ) 249-4898 for all Fayetteville... Clogged, the furnace cools down, it ’ s electronic control panel no time to call a repair! Water damage a day ( unless you ’ re constantly increasing the temperature your. Clear, turn off the burners when it started going from fall to.. 'S also possible that the furnace will blow cold air noticed a loud sound right before cold,... Means that cold, and the limit switch shut down all your or!

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