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