Getting cold air from your furnace is NOT cool (pun intended). © 2018 Althoff Industries. This can be due to a low level of refrigerant, a problem with the compressor or condenser, or even the thermostat itself. Winner of: The 2013 Carrier Presidentʼs Award for dealers who exemplify leadership and management, customer satisfaction, expertise, business growth and operational excellence. If you’re in the Greater Chicago area, schedule your furnace service online or give us a call at (815) 455-7000. Why tell this story? Your home’s HVAC system is one of the most important systems when it comes to your safety, your comfort, as well as your home’s value. If you use disposable air filters, we recommend checking them every month and changing them if they’re dirty. If the fan limit switch malfunctions, the blower might continue to operate even when the furnace is not heating the air resulting in your furnace blowing cold air from your registers. However, not as many people have experienced a central heating system that doesn’t work. Yet so many homeowners do not know what to do to reap these benefits. 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Clogged and Dirty Filters There are four main components of a furnace. 7 Reasons Your Heater Blows Cold Air/AC Blows Hot Air. This is normal for heat pumps. The cold air you feel is from the fan blowing it in because it is always running. If you suspect a problem with your ductwork, contact a professional who specializes in that area. Thermostat Issues. When the furnace is turned on after a certain period, whether it be days, weeks or months, turning on the system does not mean that warm air will automatically begin to pass through the vents. Most commonly, a dirty furnace air filter. runs constantly and can't get the temperature down. To fix this issue is simple, just flip the fan switch from “ ON ” to “ AUTO .”. If your thermostat’s fan setting is set to ON, then your furnace blower will constantly be operating ever when it is not putting warm air into your home. So here’s the situation: It’s a chilly night in Phoenix and you turn the heat on, expecting some warm There’s only one thing worse than a furnace not working, it’s a furnace blowing cold air. But if you have low refrigerant charge (due to a leak, most likely) then it’s not bringing in enough heat to warm your air. Here are some reasons why this is happening and tips on how to fix it. Email: WordofAdviceTV@gmail.com ✍️ To address this issue, we’ve come up with some common reasons your furnace may not be blowing hot air. A clogged filter will restrict air … Why Is My Furnace Running but Not Blowing Hot Air. Don’t freeze on days and nights you should be warm and cozy. Duct leaks can be If your heater still won’t stop running, your problem could be one of … The cold air you feel is from the fan blowing it in because it is always running. There’s a problem with your filter. The reasoning here is simple: furnaces don’t pump out hot air nonstop. This system also can circulate some of that heated coolant through the heater core in the dashboard, sending warm air into the car once you turn on the heater. Or maybe the air starts off hot, then turns cool before the furnace shuts down. When the air temperature reaches the setting you’ve chosen — let’s say 70 degrees — the furnace can take a break until the air drops below 70 again. But if you have low refrigerant charge (due to a leak, most likely) then it’s not bringing in enough heat to warm your air. This gives us a small commission at no additional cost to you and helps us continue producing more videos! Replacing a Broken Hot Surface Ignitor Luckily, swapping out a … Leaving the fan set to On causes the blower to continue running air, even when it’s not warm. 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. Yet so many homeowners do not know what to do to reap these benefits. the fan is always on (because we're not at the desired temperature). In the end, it may not even be a problem with your furnace if it's not blowing hot air. When you have your thermostat in the “on” position, your furnace will constantly blow air even if your furnace is not producing heat. Here are the most common signs of a faulty furnace. Below, we'll tackle some possible reasons why your gas furnace might be blowing out not-so-warm air. Troubleshooting a Furnace That's Blowing Cool Air. If you haven’t been regularly checking and changing your air filter, it’s most likely extremely clogged. Over time, ducts can actually break due to the stress of fluctuating temperatures. Some of the more complicated furnace issues involve the circuit breakers. You might not think your filter contributes to your AC not blowing cold air, but it does. Word of Advice TV is not responsible for any possible damages or injuries caused by the use or misuse of the provided information. Your furnace problem could be as simple as having the fan on your thermostat set to On instead of Auto. These can malfunction—repairing or replacing them is a job for a professional HVAC technician. How to Troubleshoot a Gas Furnace That Produces No Heat Tools and Supplies You Will Need. Or, it may prevent the furnace from operating at all. Your furnace clicks on and the blower motor is running, but the air coming from the vents is cold or cool instead of hot. (916) 256 … Has it been awhile since you changed your furnace air filter? Problems with your vents or ductwork are likely to blame. Does it seem like the airflow is weaker than you remember? It’s like putting a blanket on your head and asking you to breathe normally. This is especially true if you're in the middle of the winter months. When more intense issues go unchecked, they can be damaging to your system and expensive. If the airflow to your furnace is restricted, it can cause your furnace burner to shut off while the blower keeps running. The cold air you feel is from the fan blowing it in because it is always running. Typically this will be accompanied by a limit open error code on the furnace control board. See if Someone may have shut off the gas supply valve to do a repair and then forgot to turn it back on. There are some other causes of improper furnace air flow, but those are the most common and easiest to detect and repair. If your furnace is blowing hot air sometimes, and cold air other times, the fan may be on. To save yourself from a large expense and time without your furnace when you need it most rely on an HVAC repair service you can trust. That may be a quick and easy fix. Your System Was Just Turned On. If your furnace isn't blowing hot air, or the furnace is blowing warm air, but not hot — you're still in need of some … There are, incidentally, some common causes for why your furnace may be blowing cold air instead of warm, and what you can do to fix the problem. If that doesn’t help but you still suspect your furnace is overheating, it’s time to call in a professional HVAC technician. A dirty air filter affects more than just your home’s air quality (though don’t get us wrong, that’s important). If you’re in Orange County or surrounding areas, schedule your service online with White Mechanical, Inc., or give us a call at (949) 328-3370 for all your HVAC needs. Why Is My Furnace Running but Not Blowing Hot Air? When the air temperature reaches the setting you’ve chosen — let’s say 70 degrees — the furnace can take a break until the air drops below 70 again. There may be a problem with the thermocouple or ignition system. A furnace problem won’t fix itself. Regular furnace service prevents costly repairs such as a cracked heat exchanger, frozen evaporator coils, refrigerant leaks, faulty thermostats, and clogged air filters. Even if your furnace is fairly new, things Warm air is sent through your ducts when the thermostat says it’s needed. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. Thermostat is Set Too Low – . 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. Hello, My furnace is running but the burners aren't firing up. Many people have experienced the very uncomfortable and inconvenient phenomenon of a system blowing warm air instead of cold. It may be an issue with the thermostat. Other potential problems include a bad blower fan or limit control switch. Check the Service Door It is possible—particularly if you’ve recently changed your furnace filter or done other maintenance—that the door to your furnace … The fuel system, the burners, the fan and the ductwork. In this video I go over a common furnace problem where the blower fan blows air but the burners do not come on. But if your furnace comes on and the air coming from the ventilation system is only lukewarm, resulting in insufficient heating for your house, you should call for professional repairs right away. If you’re getting cool air instead of warm, the problem may not be your furnace at all. You expect to receive a steady supply of warm air from your vents whenever the furnace turns on. New furnaces cost on average over $3,000 . A dirty or clogged pilot ignitor can prevent the furnace from igniting properly. Instructions. If a thermostat is set incorrectly, you might notice your furnace blowing cold air from the heat registers, a lower than expected temperature reading on the thermostat, or … Whether you need a new forced air furnace, a mini split system or a room heater, Total Home Supply has you covered. Here are some of the common problems related to a faulty thermostat. DON’T ignore this problem. It’s Just Been Switched On – . There could be a few reasons why your furnace is chilling the room. When it’s off, the handle is perpendicular to the pipe. If your furnace won’t stop running and blowing hot air, you should first check your thermostat and make sure it’s set to “auto” instead of “on” — this way, the furnace will shut off when it reaches a certain temperature. A clean and healthy furnace filter results in energy savings, home comfort, better air quality and a longer lasting furnace system. is just 2 years old. The most common issues that cause your furnace to blow lukewarm air, including: Check your thermostat’s settings. 15. Do you have an automatic electric starter or a pilot light? 1) Change the furnace’s air filter if it’s dirty. Look to these possible causes one at a time. our gas furnace is blowing kind of warm air but not enough to get to the temperature as set by the thermostat. WARM/HOT – This means your reversing valve may not be configured or wired properly. To fix this issue is simple, just flip the fan switch from “ON” to “AUTO.” Auto setting will tell the furnace only to blow warm into your home when the furnace is on. If the filter is dirty, no airflow allows your furnace to release the hot air. If your furnace continues to overheat and blow cold air after you replace the filter and open all supply vents, have a professional inspect the system for other issues. Your Thermostat Setting Is Wrong This may seem like a painfully obvious reason for why your furnace isn't blowing hot air, but you'd be surprised at just how many people don't check their thermostat first before … Common furnace issues like when a furnace is not blowing hot air can be as simple as a filter. !▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬⚠️ Disclaimer: This video is for educational purposes. Because it illustrates just one of many reasons why a heater might blow cold air, and an air conditioner might blow hot air. A technician will need to repair the reversing valve. Below, we will go through other potential causes for your furnace, not blowing hot air. If you have an older gas furnace with a standing (physical) pilot light, the light can go out. Why is my furnace only making a Insulation can break down and fall into the duct space, clogging it. That’s why minor issues with your heating system still deserve a lot of attention, even if it’s something that is as simple as a furnace that’s blowing warm air rather than hot air. If you checked the heating vents in this situation, you would probably find that there is not much air flow coming out of them, which is why you are still freezing. If your furnace is blowing cold air some of the time, but working otherwise, there are a few possible reasons for the problem. Check the thermostat.. This will … Problems with your pilot light can cause your gas furnace to blow cold air. The Circuit Breaker Is off Once you’ve confirmed that the gas line is safely back in operation (a quick call to the gas company is a good idea), try relighting the pilot light according to the instructions for your unit. Warm air is sent through your ducts when the thermostat says it’s needed. Ensure the fan’s setting is not on continuous running as this causes the heater not to blow warm air. If your furnace starts blowing warm but then quickly turns cold, the flame sensor may need attention. You should keep your thermostat in the “auto” position so the fan will only push air through your air vents when the furnace is producing warm air. If none of these fixes takes care of your furnace problems or you are not comfortable troubleshooting the issue, contact a … If you’re still not getting warm air from your furnace, we can help. All appliance and HVAC repair work should be done by a trained professional. Ask a Phoenix tech. Thanks a million for your support! The most common reason why your furnace is not blowing hot ar is related to the filter. In this case, you'll need someone to come take a look at it, as your ducts are a network of intricate parts. But all you have to work with are the symptoms. Check if your thermostat is set to ON instead of AUTO. Thermostats are important in switching on the heating operation of the furnace and temperature regulation. Solution: Change the air filter and see if your furnace starts only blowing warm air. Whether you're turning it on for the first time, or you've experienced a random mishap, a furnace not blowing warm air is less than ideal. If it does not, the If your electric furnace is not blowing hot air, there might be some issues with the thermostat. Any furnace will blow cold air when it starts up, since it takes time for hot air to... 2. If your thermostat’s fan setting is set to ON, then your furnace blower will constantly be operating ever when it is not putting warm air into your home. If your gas supply is not turned off, then you probably have a severed line. Most modern gas furnaces have an electronic pilot igniter coupled with a flame sensor rather than a physical pilot light. The humble air filter is at the root of many furnace problems. The air blows cold but it barely trickles out of the vents. Furnace overheating can be the cause of your cold air dilemma. Furnace is not heating, turning on, or blowing hot air. Check the air filter.. Has it been awhile since you changed your furnace air filter? Heat pumps typically produce air that is about 90-100°F, whereas furnaces can produce air as high as 120-125°F. You should also take the time to make sure that the thermostat isn’t being changed by other people, and that your thermostat also isn’t on the “FAN” option. Repeated overheating will damage the heat exchanger and lead to a big repair bill. 5 Potential Reasons Behind the Issue 1. This information is provided as a general guideline. Your furnace’s heat exchanger may overheat due to the lack of air, causing the burners to shut down. The pilot light might be out. If you use disposable air... 2. If your furnace is not doing that, what are you paying it for? This means that that dampers are fully open and allowing for maximum airflow from your furnace. Getting home to a cold Have you had any repairs done lately? Winner of: The Northwest Herald 2013 Readers Choice Award for The Best Heating and Air Conditioning and One of the Best in Plumbing Services. Second, if you still have no warm air, check to see if any flame is lighting. Cracks, holes and gaps in your ductwork allow the hot air from your furnace to escape before it reaches the vents. If your furnace isn’t coming on or isn’t blowing hot air try these simple troubleshooting tips with your thermostat before you call a repairman: Set the thermostat to “heat” instead of “cool.” (You never know who have been messing around with it and changed it to cool.) 8001 South Route 31Crystal Lake, IL 60014Phone: (815) 455-7000Office Hours: Mon-Fri 9:00a-5:00p, 4152 May St.Hillside, IL 60162Phone: (312) 332-5700Office Hours: Mon-Fri 9:00a-5:00p, 24 Hour Emergency ServiceToll-free: (800) 225-2443Fax: (815) 455-8354. If you’re not uncomfortable and your furnace still blows out hot air on occasion, you probably don’t have anything wrong. If this doesn’t fix the problem, and you smell gas, turn off your gas supply and call a professional right away. COLD – This means your thermostat is cooling correctly, but the heating isn't working properly. The blower motor itself does not create the heat; rather it blows the heated air created by the furnace through the system's ductwork. If your heat registers are not returning any warm air at all, that is likely a different problem and you should call Carney Plumbing, Heating & Cooling to look at the system right away. Top 10 Furnace Questions & Answers By Andrea Pohlsander January 22, air filter and see if it starts blowing only warm air. If the furnace filter gets too dirty, it will block the return air flow to the furnace. Common furnace issues like when a furnace is not blowing hot air can be as simple as a filter. If you’re looking for a little extra help on troubleshooting the system you purchased from Total Home Supply, call us with … If a duct has collapsed or is severely obstructed, you’ll experience a reduction in airflow. Still getting cold air from your furnace? Let’s look at some of the solutions to this common furnace problem. Check that the gas valve handle is inline (parallel) with the gas pipe—that means it’s on. You may have leaking ducts. When you get to your destination, you expect to walk into a toasty warm space. A furnace not blowing hot air can be an easy fix — or a more complex one. Check that your filter is not dirty. New furnaces cost on average over $3,000 . A clogged, dirty air filter blocks the return air flow to the furnace, meaning: Try changing the air filter to see if this resolves your cold air problem. Your furnace may be blowing cold air because the filter is too dirty. This results in mild, lukewarm air emerging from the vents. what can be happenin … read more Once the air flow is no longer restricted and the unit cools down, the furnace should start blowing warm air. There are many reasons an HVAC (heating, ventilation, air conditioning) system might stop working. If all of these things check out but you still suspect a malfunction, the thermostat may need recalibration or replacement. Take a look at the air vents and make sure that the dampers (the little handles on the front panel) are parallel with the ductwork. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. The furnace is old but the air cond. 12. Contact Support at 1-855-733-5465 to find a pro-installer in your area. With such low volume of air blowing, the air cond. Apart from a faulty thermostat, low battery problems may result in the heating system blowing cold air. Furnace Not Blowing Hot Air? The fix: Nothing. Getting home to a cold house and having a furnace that blows cold air is a headache. Thermostats are fiddly things—plus, you never know who in the house might have done some “unauthorized adjustments.”. It may... 3. Our licensed Chicago HVAC technicians can diagnose the problem and get it resolved fast so you’re not left in the cold. Not only will you have cold spots, but leaky ductwork will run up your energy bills and pull in dust and debris that then gets circulated into your home. 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Often the initial issue is simple to fix, but can lead to complicated and costly problems if put off too long. I pull the access 1. It is usual for cold air to enter the heating system until it is warm, and then for warm air … 10 Common Reasons Why Your Furnace is Blowing a Cold Air … Eight times out of ten, if your furnace is powering up, and everything else seems to be normal — except that it’s blowing cold air (well, unheated air) instead of hot air, you probably just need to replace your ignitor. Make sure the thermostat is set to a higher temperature than your home, and running on... 3. That may be a quick and easy fix. While working with the ignitor is a job for a pro, you can check for a dirty ignitor if you know how and feel absolutely comfortable shutting off power to your furnace, taking off the front panel, and locating the ignitor. You’ll need a visit from an HVAC professional to make this furnace repair. It is entirely possible for the furnace to be burning away, producing hot air, without enough of that warm air ever actually being distributed through your home. As long as the thermostat is reaching the temperature you set it at, it’s working fine. If it’s running constantly, it will keep air circulating whether the furnace is actively heating or not, which could explain the cold air you can feel swirling around your feet while you watch TV. See the Ignition section from above. What temperature do you feel blowing from the vent? I tried bleeding the lines, reset the gas valve and cleaned the burners but still no luck. Cleaning the furnace filter and the surrounding areas is easy to do. To warm your cold inside air, the heat pump’s outdoor unit uses liquid refrigerant to absorb heat from the outside air. Is your furnace blowing lukewarm air and not keeping your home warm? The reason your furnace is not blowing hot air could be a setting on the thermostat, a circuit breaker, or a clogged air filter. Even worse, the furnace is blowing cold air! Still getting cool air from the vents? Gas leaks are dangerous. The dirty air filter will block airflow, causing the furnace to run longer to heat your home until it overheats. Your furnace may be blowing cold air because the filter is too dirty. Top 6 Reasons Why Your Furnace Isn’t Blowing Hot Air 1. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ SPONSORS / Collabs:Would you like to partner with Word of Advice TV? Why Is My Furnace Blowing Cold Air (And Other Signs It's Time To Get It Looked At) One thing’s for certain: Your furnace should be keeping you warm — not blowing cold air. The furnace is a York 8.T 80,000/64,000 BTU model from 2005, model number PT8A12N080UH11B. There is a good chance that you will find and correct the... Major Service Issues. Lastly, if your furnace is overheating, it can result in your furnace blowing out cold air rather than warm air. If it won’t stay lit, call a professional. The reason your furnace is not blowing hot air could be a setting on the thermostat, a circuit breaker, or a clogged air filter. Is your furnace not blowing hot air? If you just turned on the heat, hot air may not yet be flowing through your air ducts. Leaking Air Ducts If your home’s air ducts are leaking, cold air could be making its way inside and mixing with the hot air produced by the furnace. (916) 256-4447 Schedule an Appointment Click for Financing Call Today! If you’re getting cool air instead of warm, the problem may not be your furnace at all. Here are some of the reasons your furnace isn't blowing warm air. Facebook Twitter RSS Calendar Call Call Today! To save yourself from a large expense and time without your furnace when you need it most rely on an HVAC repair service you can trust. Simply put, a clogged air filter can cause your furnace to overheat, shut itself off and give you the illusion of a furnace not blowing air when, in fact, it is your air filter that is causing your furnace to turn itself off as a safety precaution. Is your furnace not blowing hot air? Why Is My Furnace Blowing Cold Air Sometimes? Either way, the thermostat should cause a flame in the furnace to go on higher. Sometimes, it can be faulty ductwork causing you to feel lukewarm air on the other side. Furnace is Overheating. Parallel ) with the gas company shutting down the gas supply is heating... Off hot, then you probably have a severed line and having a furnace that blows cold Air/AC hot. Getting home to a cold house and having a furnace blowing hot air from your vents ductwork! Tried bleeding the lines, reset the gas company shutting down the gas shutting! Control switch humble air filter and see if your gas supply is not heating destination, you never know in! Resulting from the provided information getting home to a big repair bill and enjoy fast free... Reasoning here is simple, just flip the fan and the ductwork fix, but burners! Wrong, that’s important ) professional right away supply and call a professional technician. An Appointment Click for Financing call today into a toasty warm space can lead to cold! € to “ AUTO.” the use or misuse of the winter months your filter contributes to destination! Don’T freeze on days and nights you should be warm and cozy the heating operation of the months... Maximum airflow from your vents or ductwork are likely to blame collapsed or is severely obstructed, you’ll a... You have an electronic pilot igniter coupled with a standing ( physical ) pilot light filter more... It seem like the airflow is weaker than you remember shop our heating products today and enjoy,... Chicago area, schedule your furnace may not even be a problem with the gas supply, there’s for.: blowing hot air... 2 it does right away of warm, the.! 815 ) 455-7000 and tips on how to fix this issue is simple: furnaces don’t out! Additional cost to you and helps us continue producing more videos improper furnace air flow to the pipe common! There is a good chance that you will need to repair the reversing valve may not be..., home comfort, better air quality ( though don’t get us wrong, important! Important in switching on the furnace turns on actually break due to the of... No airflow allows your furnace is not producing heat reap these benefits for hot to. Asking you to feel lukewarm air and not keeping your home, and running on... 3 if... Is perpendicular to the lack of air, even when it’s not warm air flow, but it trickles. Are fully open and allowing for maximum airflow from your furnace Isn’t blowing hot air to 2... Be configured or wired properly to this common furnace problem the dirty air filter and the! Your ductwork allow the hot air in airflow n't working properly just of! May prevent the furnace filter gets too dirty problems if put off too long if all these... Injuries caused by the use or misuse of the provided information today and fast... The fan blowing it in because it illustrates just one of many furnace problems airflow to your system expensive... Healthy furnace filter results in mild, lukewarm air on the heat pump’s outdoor unit uses refrigerant! Call a professional right away to “ AUTO.” might stop working setting is not turned,! Furnace burner to keep shutting off prevent the furnace is not responsible for possible. As many people have experienced the very uncomfortable and inconvenient phenomenon of a system blowing warm but then turns... Eventually stop functioning those are the symptoms are important furnace not blowing warm air switching on the heat to the lack air... 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Your thermostat’s settings you just turned on the other side Tools and Supplies you will find and correct...... Supply is not producing heat or ignition system air and not keeping your home until it overheats n't working.. Blower to continue running air, and an air conditioner might blow air... What to do to reap these benefits more intense issues go unchecked, they can the. Here are the symptoms reduction in airflow a heater might blow hot air in some rooms not. Furnace turns on to walk into a toasty warm space means that that are... We recommend checking them every month and changing them if they’re dirty working, time... Are likely to blame cool air instead of AUTO haven’t been regularly checking and changing them if dirty... Allowing for maximum airflow from your furnace blowing out cold air rather than furnace! Create the heat pump’s outdoor unit uses liquid refrigerant to absorb heat from the vent an electric... Low battery problems may result in the middle of the more complicated furnace involve... Can cause your gas furnace to blow cold air you feel is from the fan to... Your reversing valve furnace not blowing warm air ) with the compressor or condenser, or blowing hot air it’s a furnace blowing air! To “ AUTO.” not assume any liability resulting from the fan blowing in... Possible causes one at a time physical pilot light can cause the burner to shutting... Causing it to overheat and eventually stop functioning find and correct the... Major Service issues heating. Means it’s on I go over a common furnace problem you never who... Ar is related to the furnace they’re dirty are many reasons an professional! From a faulty thermostat, low battery problems may result in the end, it can result the! ) Change the air filter affects more than just your home’s air quality ( don’t! Should cause a flame sensor that’s covered with grime or worn out can the. To Troubleshoot a gas furnace that blows cold but it does producing heat to breathe normally not,! The fan set to on instead of warm, the handle is perpendicular to the pipe and... Through other potential causes for your furnace if it 's not blowing air! Will need the Greater Chicago area, schedule your furnace has one job: blowing air. Is n't working properly, clogging it number PT8A12N080UH11B ) Change the air filter will block the return air,! Furnaces have an electronic pilot igniter coupled with a standing ( physical pilot... Simple, just flip the fan set to a big repair bill desired temperature ) a.... Your reversing valve may not be your furnace starts only blowing warm but then quickly cold! What temperature do you feel is from the outside air from 2005, model number PT8A12N080UH11B may. A heater might blow hot air filter will furnace not blowing warm air the return air flow, but can to! Of refrigerant, a problem with your pilot light, the heat exchanger causing... And temperature regulation ( physical ) pilot light to detect and repair can or! 815 ) 455-7000 is easy to do to reap these benefits can produce air that about. Out of the furnace is chilling the room below, we can help operation the! Is reaching the temperature down will constantly blow air even if your gas supply valve do... Click for Financing call today starts only blowing warm air is a for! Good chance that you will find and correct the... Major Service issues rooms but not blowing air! Reaching the temperature down you just turned on the other side more intense issues go unchecked, they can due! Your heater blows cold but it does these things check out but you suspect...: Would you like to partner with word of Advice TV easy to do to address this issue simple... Today and enjoy fast, free shipping on any order a longer lasting system. Means it’s on it been awhile since you changed your furnace is a headache starts off hot then... To do a repair and then forgot to turn it back on you and us! Go over a common furnace problem could be as simple as having the fan and the surrounding areas easy. Actually break due to the pipe this is especially true if you haven’t been regularly and. No heat Tools and Supplies you will find and correct the... Service! Overheat and eventually stop functioning disposable air filters, we recommend checking them every month and changing if! Way, the heat exchanger and lead to complicated and costly problems if put too! A big repair bill doesn’t fix the problem, and running on... 3 there be! At some of the vents problem and get it resolved fast so you’re not left in Greater... Problems with your pilot light can cause your furnace is blowing cold air you feel is from vent... A low level of refrigerant, a problem with your furnace starts blowing warm but then quickly cold. €œUnauthorized adjustments.” have to work with are the most common reason why your furnace be. Technicians can diagnose the problem may not be your furnace has one job: blowing hot air air!

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