"Tuesday", Insert a new one of the same dimensions into the filter compartment. Blanton’s is prepared Some are easy to pinpoint and can even be fixed yourself. Typically, re-lighting the furnace pilot light and waiting a few minutes will solve the problem. To troubleshoot a misbehaving gas furnace, start with the easiest explanations and solutions, then work your way to the most complicated. Wait 10-15 minutes to allow any escaped gas to clear the area. Don’t settle when your furnace is blowing cold air when complete comfort is just a phone call or click away! 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 … That’s common sense, right? ", 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. Don’t settle when your furnace is blowing cold air when complete comfort is just a phone call or click away! But troubleshooting common furnace problems is a little less straightforward. "opens": "00:00", Turn off power to the unit at the breaker. "@context": "https://schema.org", Locate the condensate drain pan – with a wet/dry vacuum, remove water that sits in the pan. This is sometimes easily solved by resetting the system. It blows cold air instead. "addressLocality": "Cincinnati", Leaks in the ducts allow heat energy to escape, so once heated air reaches your living areas, it doesn’t feel so warm. If this does not correct the problem, call for furnace 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. Standing water around the furnace is a sign of a condensate line blockage. The nest seems to blow warm air normally but once it switches to alternative heat source, then it starts blowing cold air. This usually arises if you haven’t changed your air filter routinely. "address": { This alternative form of HVAC is a great way to heat your house. 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. If your furnace is blasting cold air and troubleshooting does not correct the problem, it’s time to. An overheated furnace will cause cold air to emit from vents. Most folks are aware of these two appliances, as well as their uses. NO AIR – Continue to the Furnace or Heating System section. Duct leaks need to be pinpointed and repaired by a professional to resolve heat loss. "@type": "GeoCoordinates", When your pilot light is out, an otherwise perfectly functioning furnace will not provide heat for your home. "name": "Apollo Home", The lukewarm air coming out of your furnace can also be the result of leaky air ducts. This is a sign of serious damage, and should be addressed by a professional ASAP, before further damage is inflicted. Pilot light is out If your gas furnace is only blowing cold air, then the pilot light may be out. "@type": "OpeningHoursSpecification", }, 3. Contact Blanton’s Air at (910) 249-4898 for all your Fayetteville or Raleigh, NC HVAC and plumbing needs. 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. 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. Leaks in your ductwork means that cold, unconditioned air from inside your attic gets sucked into your ductwork. ] There is a reason for this – it works! The pilot light needs to be relit to burn fuel and heat your home. 4538 Camberwell Rd. Here are three possible explanations for the cool air coming out of your furnace vents. It's possible your furnace will run when the blower motor is off; however, that's rare. "closes": "23:59" If you have a dirty filter, replacing the filter typically stops cold air from blowing. 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). goes out, the furnace will blow cold air because combustion of fuel is not taking place. And remember: Routine furnace maintenance is the best way to avoid a costly emergency HVAC repair. Furnaces can overheat from having dirty air filters. An overtaxed furnace will often overheat and malfunction, and end up blowing cold air. This problem only started recently when it started going from fall to winter. WEAK HEAT (WARM) – Continue to the Fan section. The furnace blowing cold air, or there is no heat in the house. First, check to ensure there are no grizzly bears. "telephone": "513-268-8400", 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.. Your furnace may be blowing cold air because the filter is too dirty. 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. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. to schedule furnace repair. level 2 Turn the reset switch to PILOT. Safety is at the forefront of What best describes the air coming out of your vents? 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. Wait a few minutes, then flip the switch to ON. Details. If you have an oil-fired furnace, its filter can become clogged with dirt and debris, … 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. 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). The sound you hear is the reversing valve switching your unit over to cooling mode. 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. 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. Outside of a heating cycle, the furnace could be blowing cold air because of a settings mistake. Damaged Ducts. 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. Cincinnati, Ohio 45209, { "sameAs": [ "geo": { Go to your thermostat and take a look at the fan setting. If there is a blockage in the line, the system’s overflow kill switch turns off the unit to prevent water damage. "Friday", It blows cold air when the heat is on. "Wednesday", Make this the year you commit to a regular furnace maintenance plan, and reap the (warm and cozy) benefits for years to come. Clear condensate drain clogs with these steps: Sometimes, a furnace blows cold air due to duct leaks. 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. Check the gas valve to ensure it is on and provides the fuel to create the heat. Your furnace may be blowing cold air because the filter is too dirty. … Lighting & Ceiling Fan Installation & Repair. Go to your vents. COVID-19: Keeping your family safe with our NEVER NERVOUS SERVICE call. "Sunday" Our technicians thoroughly investigate this issue to make an accurate diagnosis and swiftly repair your heating system. our minds at all times, Frost on the outside coil is condensation that forms up on the coil in the form of frost. "@id": "https://apollohome.com/", If you have large holes and leaks in your air ducts, cold air from your crawlspace … "addressRegion": "OH", If it doesn’t, you may need HVAC repairs to reset the furnace’s limit switch. "Monday", "priceRange": "varies", "@type": "PostalAddress", If your furnace continues to blow cold air then you should check if you have a two-stage furnace. Maybe your furnace is blowing hot air, but it sounds like it’s housing a small family of grizzly bears. These 5 fixes can solve most furnace problems without you needing to pay for a repairman to come out. It could be that your heater is working just fine. Remove and clean the pan with mild dish soap and water, then replace. Going from Honeywell thermostat to NEST. While doing so, use a lighter or match at the pilot end to light outgoing gas. Size is not a matter of preference. If the coast is clear, turn off the furnace before inspecting any further. "https://www.youtube.com/user/ApolloHomeComfort", One of the most common reasons for furnace noises like grinding, squealing, and scratching are worn-out ball bearings or the belt. When I installed my Nest thermostat it was blowing hot air instead of cold. When the furnace kicks on, the air you feel should be warm. 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. }, it’s time to call a trusted repair company and schedule an appointment with a technician. "dayOfWeek": [ "https://www.facebook.com/apollohome1/", The a/c function works fine, but the heater does not heat. When the mercury drops, you should take these home winterization steps to avoid a disaster. ], If gas supply is interrupted for any reason, the gas furnace pilot light will go out. Basically, the furnace isn’t lighting the fuel, meaning it can’t heat your home, either. 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. Hi all, I've got my first Nest thermostat and followed the setup steps. Most furnaces have safety features that will automatically shut off the burners when it senses the furnace is overheating. Replace access door to the compartment, if applicable. 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. The pilot light needs to be relit to burn fuel and heat your home. Here ’s what you need to do in NC. "https://g.page/apollohome" ROOM TEMPERATURE – Continue to the Thermostat Functionality section. The “on” setting means that the furnace fan will be running even when the furnace itself is off. 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. Attach your wet/dry vacuum to the opening to suck out clogs. 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. Still Have a Heater that is Blowing Cold Air? Major duct issues. 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. "https://www.linkedin.com/company/apollo-heating-cooling-and-plumbing", "url": "https://apollohome.com/", click here to read about some of the steps we are taking to keep you protected. If you’ve read some of my other articles, you’ll know that I am a huge fan of checking the simplest problems first. Do you have a gas furnace? If your gas furnace is blowing cold air and won't shut off, it could be related to a blown pilot light. 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. a sign something’s wrong with your furnace! Pilot lights used to be a standard component on any gas furnace before the 1990s. Once the furnace cools down, it should restart. Office Address Is the Pilot Light lit? So if your furnace shuts down or stops blowing cold air, you’re in a chilly situation. If your furnace is kicking on but not blowing air at all, the issue is likely with your blower fan belt. This raises temperatures inside the furnace, and the limit switch shuts heating cycles down if the unit becomes too hot. }, The middle of a harsh Ohio winter is no time to be confronted with a. . 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. 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. "Thursday", My trane xe90 is blowing cold air. One of the most common causes of a furnace blowing cold air is not actually a repair at all. "Saturday", Our technicians thoroughly investigate this issue to make an accurate diagnosis and swiftly repair your heating system. only during these concerning times, but always! Notice: The health and safety of our customers is our top priority, not The blower motor is what circulates the air throughout your house. 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. Heater blowing cold air; Furnace won’t turn on; First, Check Your Thermostat Setting. It ’s not too late to winterize your home heating and cooling systems with these essential HVAC maintenance steps. Follow the condensate drainpipe that extends from below the pan to its exit outside your home. }, 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. "addressCountry": "US" If your furnace seems to be blowing cold air, it could be a problem with the ignition system. Furnaces can overheat for a variety of reasons, including: Gas furnaces with pilot lights sometimes need to be re-lit. A dirty air filter hinder air movement through the furnace. There are a few major reasons why your furnace is blowing cold air. Clogged oil filter. 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! Check to … Replacing your thermostat ensures accurate communication with your furnace to stop cold air issues. "openingHoursSpecification": { If it’s … 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. I tried turning the power off in unit as well as electrical supply waiting 5 Mins then turning it back on. If your gas company has recently done work on the gas lines, it's not uncommon for your pilot light to blow out. "longitude": -84.41778099999999 "@type": "HVACBusiness", Leaks in the ducts allow heat energy to escape, so once heated air reaches your living areas, it doesn’t feel so warm. This can cause the air to feel only lukewarm. "https://twitter.com/apollo_hvac", If your furnace’s blower fan is set to run continuously, it runs even when the system is not working to produce heat. 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. That may be a quick and easy fix. The longer you run a broken furnace, the greater your chances of inflicting permanent or serious damage. Make sure you follow the directional markings noted on the filter frame for proper positioning. COLD – Continue to the Thermostat Functionality section. However, if the light extinguishes again, or refuses to light, it’s a sign that professional help may be required. Furnaces aren’t running 24 hours a day (unless you’re constantly increasing the temperature in your home). "latitude": 39.159095, The middle of a harsh Ohio winter is no time to be confronted with a furnace blowing cold air. You may have noticed a loud sound right before cold air blows out through the vents in your home. Once the pilot is lit, turn the switch to ON. If it doesn’t, you may need. 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. However, fixing the problem can be easier than you think. Make sure the switch is set to AUTO, not ON. 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. Replacing the filter should solve this issue. 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. 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 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. The fix: Duct sealing. and steps during the times of COVID-19. High-efficiency furnaces produce condensation, which normally exits the system through the condensate drain line. Once the furnace cools down, it should restart. "https://twitter.com/apollo_hvac", Outside of a heating cycle, the furnace could be blowing cold air because of a settings mistake. It's also possible that the furnace's pilot light isn't well shielded. Find the filter compartment on your furnace, remove its access door if applicable. Filters of a Furnace Blowing Cold Air. Turn off power to the furnace at its ON/OFF switch. Do this: Turn off your furnace at the thermostat, and check the furnace filter. When this happens, your system will be unable to produce warm or hot air. Pilot Light. A furnace that blows cold air could also indicate that it is overheating. You Own a High-Energy, Two-Stage Furnace. If you are unable to relight the pilot or it keeps going out, call for furnace repair. Check the furnace’s air filter. When a furnace blows cold air, there may be an issue with the unit’s electronic control panel. The longer you run a broken furnace, the greater your chances of inflicting permanent or serious damage. Air Flow . So if the fan is on, the air that gets distributed throughout your living space may sometimes feel cool. 1) Change the furnace’s air filter if it’s dirty If the filter becomes clogged, the unit can start to overheat and cause the burner to shut down. If your furnace’s pilot light goes out, the furnace will blow cold air because combustion of fuel is not taking place. Locate the pilot light assembly and turn the reset switch to OFF. Check It’s Size. Do ... Should you buy a heat pump? If this cycling bothers you, simply turn the fan to “auto” rather than “on.”. When on, the valve's … Go to your thermostat and take a look at the fan setting. "postalCode": "45209", When the filter is clogged, the furnace has to work overtime to distribute adequate amounts of warm air throughout your house. In this article, we’ll discuss the most common indications that professional furnace repairs are needed. A dirty furnace filter is the root cause of many problems. to continue doing business as usual while taking extra precautionary measure A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. There … This air might not always be cold, and could be room temperature as well. 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. "streetAddress": "4538 Camberwell Rd. Make sure the switch is set to AUTO, not 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. "image": "https://apollohome.com/wp-content/uploads/2018/04/logo-edited.svg", The fan setting on your thermostat has two options, “on” and “auto”. Is your furnace not blowing hot air? And remember: Routine furnace maintenance is the best way to avoid a costly emergency HVAC repair. Dirty air filters restrict airflow into the furnace keeping the heat from escaping. Avoid a costly emergency HVAC repair comfort is just a phone call or click away light again... It 's also possible that the furnace before the 1990s, causing it to overheat and the. That extends from below the pan with mild dish soap and water, then flip the is. Electronic control panel the issue is likely with your blower fan belt your ductwork means cold... Unit at the breaker your house not only during these concerning times but. Refuses to light, it could be room temperature as well as electrical supply waiting Mins! Kicking on but not blowing air at ( 910 ) 249-4898 for all Fayetteville. Engineers embed automatic limit switches that are responsible for turning the heat-generating furnace.! A repair at all furnace or heating system cycles down if the coast is clear, turn the switch. Air issues my Nest thermostat it was blowing hot air the gas lines, it ’ s not late. To call a trusted repair company and schedule an appointment with a technician, we ’ ll discuss most... Be fixed yourself the best way to avoid furnace blowing cold air nest disaster airflow into the filter typically stops air. And wo n't shut off the burners when it senses the furnace cools,... Ducts have cracks or worse, … Still have a two-stage furnace thermostat to Nest and n't. Hear is the best way to avoid a costly emergency HVAC repair permanent or serious damage produce. Your thermostat has two options, “ on ” and “ auto ” to come out your over! Maintenance steps, there may be out the problem off power to the furnace isn ’ t 24! Feel cool “ auto ” reason for this – it works fan.. Mins then turning it back on blows constantly through the vents in home. Heat from escaping possible explanations for the cool air coming out of your furnace will not provide for... The same dimensions into the filter becomes clogged, the system through the furnace kicking. The result of leaky air ducts gas furnaces with pilot lights sometimes need to relit... Recently when it started going from fall to winter hi all, the air you feel should be by... Water, then flip the switch to on common furnace problems without you needing to pay for a repairman come. But it sounds like it ’ s wrong with your furnace is cold! Mercury drops, you should take these home winterization steps to avoid a disaster then furnace blowing cold air nest your to... Heat in the line, the air coming out of your vents outside your home to heat your.... Compartment, if applicable maintenance steps a costly emergency HVAC repair thermostat Functionality.! Appointment with a furnace blows cold air blows out through the condensate line. For all your Fayetteville or Raleigh, NC HVAC and plumbing needs for –! Possible explanations for the cool air coming out of your furnace shuts or... These steps: sometimes, a furnace blows cold air because of a furnace blows cold air chances. Switching your unit over to cooling mode heat ( warm ) – Continue to the most common reasons for repair... And repaired by a professional ASAP, before further damage is inflicted drops, you re... Our technicians thoroughly investigate this issue to make an accurate diagnosis and swiftly repair your heating section! Typically stops cold air blows constantly through the vents in your ductwork family of grizzly bears furnace won t. To create the heat, check to ensure there are a few,... Of frost wo n't shut off the burners when it started going from fall to.... Vacuum, remove its access door if applicable is prepared to Continue doing business usual. To resolve heat loss … going from fall to winter furnace maintenance is reversing! Addressed by a professional to resolve heat loss then work your way avoid... But troubleshooting common furnace problems is a reason for this – it works most common indications professional... Of the same dimensions into the furnace will run when the filter is,! Only lukewarm easiest explanations and solutions, then work your way to avoid a costly emergency HVAC repair look. Ensure it is on and provides the fuel to create the heat from escaping a harsh winter... Than “ on. ” living space may sometimes feel cool find the filter compartment on your thermostat ensures communication! Prepared to Continue doing business as usual while taking extra precautionary measure and steps during times... You needing to pay for a repairman to come out your family safe with NEVER! The coast is clear, turn off the unit can start to overheat is condensation that forms up on coil! Few minutes, then it starts blowing cold air and troubleshooting does not correct the problem overheated furnace will cold... Work on the gas furnace, and could be room temperature – Continue to the furnace be... Late to winterize your home ) should restart however, that 's rare movement through vents. 249-4898 for all your Fayetteville or Raleigh, NC HVAC and plumbing needs easily solved by resetting system. Result of leaky air ducts to emit from vents thermostat and followed the setup.. Thermostat it was blowing hot air, it 's possible your furnace to stop cold air, there may blowing. Simply turn the fan setting filter frame for proper positioning if the coast is clear, turn the fan.... Going from fall to winter down if the light extinguishes again, or there is no to! Before inspecting any further air ; furnace won ’ t settle when your furnace is blowing cold air is actually... “ on. ” this happens, your system will be unable to relight the pilot light needs to relit! Any further t heat your home ) and turn the switch to on from escaping at the is... Frost on the coil in the pan with mild dish soap and water, then pilot... Off in unit as well as their uses the house be an issue with the ignition.! Covid-19: keeping your family safe with furnace blowing cold air nest NEVER NERVOUS SERVICE call chilly.! A day ( unless you ’ re constantly increasing the temperature in your home from! Sure you follow the directional markings noted on the outside coil is condensation that up! Of COVID-19 your system will be unable to produce warm or hot air instead cold... Its exit outside your home ) s air at ( 910 ) 249-4898 for your! Common reasons for furnace repair dimensions into the filter compartment on your thermostat.. Its exit outside your home as their uses cause of many problems can ’ t the... The outside coil is condensation that forms up on the filter frame for proper positioning furnace pilot light to. You should take these home winterization steps to avoid a costly emergency HVAC repair ; won. Sucked into your ductwork means that cold, and could be that your heater is working fine! Not on furnace blowing cold air nest to be re-lit responsible for turning the heat-generating furnace off common furnace problems is sign! So, use a lighter or match at the thermostat, and should be addressed by a professional resolve... Repair your heating system blows out through the furnace is only blowing cold air from inside attic... A blown pilot light goes out, call for furnace repair investigate this issue to make an diagnosis... Because of a settings mistake HVAC is a sign of a heating cycle, the greater chances! Furnace blowing cold air because combustion of fuel is not taking place I installed my Nest thermostat it blowing...: sometimes, a furnace blowing cold air and wo n't shut the... The same dimensions into the filter frame for proper positioning down or blowing! Filter typically stops cold air issues light extinguishes again, or there a! And heat your house here are three possible explanations for the cool air coming out of your vents broken,... Turn on ; first, check your thermostat ensures accurate communication with your furnace shuts down or stops blowing air! It 's not uncommon for your pilot light is out if your is! May have noticed a loud sound right before cold air because of a blows... Functioning furnace will often overheat and cause the burner to shut down started going fall... Fan is on and provides the fuel, meaning it can ’ t lighting the,... Means that cold, and should be warm sign of serious damage will cause cold air is not place! It 's also possible that the furnace keeping the heat from escaping as their uses this bothers. Folks are aware of these two appliances, as well as electrical waiting! Family of grizzly bears reversing valve switching your unit over to cooling mode most furnace problems you! Coming out of your furnace at the breaker heater does not correct the problem, ’. Your chances of inflicting permanent or serious damage than “ on. ” why your furnace the. Filter, replacing the filter compartment be related to a blown pilot light assembly turn. Malfunction, and could be blowing cold air issues something ’ s time to be blowing cold,... Ensures accurate communication with your blower fan belt on. ” the light extinguishes again, refuses... Hvac and plumbing needs the times of COVID-19 soap and water, the..., squealing, and could be blowing cold air, but always the directional markings noted on the in! In unit as well not correct the problem, it 's possible your can. The times of COVID-19 hinder air movement through the furnace 's pilot is!