electric furnace not blowing hot air

“Great timely service. 24 Hour Emergency Service Available. The unit runs fine, except it shuts off while still blowing piping hot air out of the vents. Warm air is sent through your ducts when the thermostat says it’s needed. Your system can weather a few rounds of overheating, but that can’t go on forever. |, 7220 Telegraph Square Dr Suite V, Check that your air filter is clean and you don’t have a clogged air filter. For example: When leaks occur, the cold air surrounding your ducts can get in (and hot air will get out). If you have a gas-powered furnace, it has a pilot light, similar to the one you might see on a gas stove. A furnace blowing cold air is indicative of a problem. Time for a family conversation about compromise. And as you’ve just learned, that can cause the chill wind to blow from your ducts. Check your thermostat’s settings, because your thermostat could be set to “Cool” which will limit your furnace from blowing hot air. Maintenance issues again here: if you have a gas furnace that hasn’t been cleaned in a long time, a faulty valve could be the reason for the cold air blowing out of your furnace. Motivated and handy homeowners who have the drive can learn how to do this themselves, manually. Overheated furnace. If the blowing mechanisms are inconsistent or non-functioning, there is probably an issue with the blower belt. Furnace problems, from minor to severe, generally stem from one of the following 10 issues: In a multi-person household, there are liable to be different views regarding desirable indoor temperatures. The settings can easily be adjusted if you need to test the performance of the furnace but an issue with the heating coils will necessitate a call to your nearby HVAC service specialist. The purpose of a household heating furnace is to warm your living quarters on an as-needed basis. It is entirely possible for the furnace to be burning away, producing hot air, without enough of that warm air … In a household heating system, the limit control switch — alternately known as the fan limit switch or furnace fan control switch — controls the automatic on/off functions of the heating coils and fan. If the furnace isn’t blowing air with any degree of warmth — and the thermostat settings, circuit breakers and air filter have all been ruled out as possible causes — the problem could stem from the blower fan itself. 1) Change the furnace’s air filter if it’s dirty. 7 common reasons a heat pump blows cold air When the sensor isn’t working properly because it’s covered in grime, your burner will keep shutting off. If that’s the case, you’ll definitely want an expert to weigh in before you start acting on the final solution. An electric furnace that is not blowing air could be the result of various problems. The air blows cold but it barely trickles out of the vents. If changing the filter and restarting doesn’t do the trick, here are some more possible solutions. Furnaces too big will cycle on and off. If your furnace does not seem to be working, the limit control switch could be responsible in one of two ways. If not, the compromised air flow can cause your furnace to overheat, shutting down the burner. Oasis Heating, A/C & Refrigeration is currently OPEN and performing active measures to prevent the spread of COVID-19 for our workers and loyal customers. If your electric furnace is not blowing hot air, there might be some issues with the thermostat. In that order, here they are: There is actually one more user error that could be the source of your cold air issues. If you’re like most people, you’ll need to turn up the heat a few more times before we can all officially call it quits on the cold weather. Arrived on schedule.”, Tags: Troubleshooting Focus your initial troubleshooting here, since you have the greatest chance of fixing the problem yourself without having to call in a professional. The cold air you feel is from the fan blowing it in because it is always running. Common furnace issues like when a furnace is not blowing hot air can be as simple as a filter. When that happens, the furnace will blow cold air. In a sense, it is like the lint trap in a laundry dryer, which needs to be cleared between each usage cycle. If the furnace filter gets too dirty, it will block the return air flow to the furnace. I pull the access panel off while the blower is running and it is spinning freely but not … If your heater still won’t stop running, your problem could be one of two issues: Watch for the following tell-tale signs of furnace trouble: As outside temperatures drop, the confusion that the furnace-or-fan issue can cause is liable to be quite frustrating. 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. If the coils are faulty, no thermostat settings, clean filters or switch adjustments will do the trick. If you suspect that’s what has happened in your case, your next step would be to call an HVAC expert who can easily tell what’s what. Filters are cheap and easy to change. i have a Coleman evecon eb17b electric furnace that will not shut off. Here are some furnace troubleshooting tips you can try if your heater isn’t blowing hot air. The second, more common problem that arises with clogged furnace filters is when the restricted airflow causes the furnace itself to overheat and trigger the system’s safety shutoff. This, in turn, could limit the ability of your furnace to produce and distribute warm air throughout your home. If you have a gas furnace, check the gas supply to see whether the fuel supply is sufficient. Thermostat wars can easily cause someone to inadvertently hit the fan’s “on” setting. Is the furnace switched on at the breaker panel? Other potential problems include a bad blower fan or limit control switch. That buildup of grime reaches its maximum at the end of the warmer weather, just in time for your furnace to suffer the consequences and start blowing cold air. It was 6 degrees F. this morning and my heat pump was soldiering on with perhaps an occasional boost from the auxiliary electric heat strips at the air … If the igniter fails or cracks, the furnace won’t heat. Here are some of the common problems related to a faulty thermostat. Others will require outside help from an HVAC professional. As such, a furnace that is not blowing air through vents across your heating system is indeed problematic. The air filter is one of the more obvious parts to check since it is easy to see how a clogged filter would impede the flow of air from a furnace. Some furnaces even contain a built-in shutoff that kicks into action when the filter gets clogged, in order to prevent an overheated burner. If you have ruled out all the previous possibilities and even replaced the limit control switch, only to find that the blower fan still switches off, there is something wrong with the heating coils. If you’ve just changed the settings, wait for it to reset. If you live in a household of two or more people, call everyone together for a discussion about mutually agreeable indoor temperatures throughout each period of a typical day. With just a few short weeks until the official start of Spring, you might be thinking this is a strange time to worry about your furnace breaking down. If the furnace blowers are generating heat in insufficient quantities, the issue is likely due to either a dirty motor or a loose blower belt. Either way, check the batteries before calling in an HVAC professional — you could save yourself some embarrassment. And if you think you might need to call in some help, we’re always here when you need us! After doing so, restart your furnace. If tripped, circuit breakers should not be tested more than once. In any event, check the following: Before you declare any serious problem with your furnace, check the settings on the thermostat to see whether everything is set to the desired modes and levels. If the furnace overheats, the control switch will shut off the system as a safety precaution. If the igniter is cracked, replace it. If the issue is minor, it can sometimes be fixed singlehandedly. If it’s dead or dying, the “brain” of your HVAC system will think the furnace is overheating. Extinguished pilot light. Simply put, if the settings on your furnace system are not properly coordinated with the fan, the latter will blow irrespective of whether you need or want actual heat. Here’s yet another HVAC component that’s vulnerable to dirt and grime-related problems: the furnace’s burner. A furnace consists of a motor fan that blows air across heating coils, thus warming the air. The moral of the story here is to keep those condensate lines clean and open. There’s no real need for you to understand how the high limit switch works but suffice it to say you don’t want it to fail. Check that your circuit breaker is not off. To test the quality of the heat itself, raise the thermostat temperature by five degrees and wait for the system to activate. If your furnace fan is set to ON, the fan runs continuously, whether or not your furnace is producing heat. It’s like putting a blanket on your head and asking you to breathe normally. Furnaces use an indoor fan to push hot air through your air ducts and into your home. This warm air is dispersed through the ducts of a household heating system to bring occupied living areas to the desired temperature. Or, the valve could simply be worn out. When it’s clogged, there won’t be any fuel getting through. If there is a reset button on your furnace, turn the valve to the pilot position and hold a flame to the dedicated pilot gas tube while pushing the button for about 30 seconds. With your furnace filter, do an inspection every three months and replace the filter if dirt buildup has taken hold. Replace or clean dirty or clogged filters. Moreover, check the temperature settings of your thermostat to make sure that the numbers are what you intended, especially if you feel colder than expected and you suspect that the settings might have been altered without your knowledge. If so, everything is fine. runs constantly and can't get the temperature down. In the latter scenario, you probably have a damaged limit control switch. If the blower fan stops working, you have a more serious problem at hand. If you have recently installed a new thermostat on your own, it is quite possible that the installation did not take as well as it appeared. Your fan may still blow, however, resulting in cold air coming through your ducts. If yours is the color of mud, it’s a sure sign that it’s time to switch it out anyway. Low battery. A clogged furnace air filter can cause two types of problems, one involving blocked airflow and the other concerning tripped shutoff functions. Lorton, The blower motor itself does not … Furnace still not blowing hot air? Some can be self-diagnosed and fixed. Sunday, November 12th, 2017 at 3:12 pm | Categories: Heating If it seems that your furnace is only blowing air in certain rooms despite a well-dispersed heating system, chances are the furnace has not been activating with the same consistency as before. To determine if the igniter is faulty, remove the igniter and inspect it for cracks. Furnace Not Blowing Hot Air? Electric furnaces pull air through a filter before it heats it. 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. Try changing the air filter and restarting the furnace. Electric furnaces. Also, check the gas valve to make sure that it is set to “on.” Every now and then, a gas valve is accidentally left off after a round of maintenance and others in the house are confused when the furnace does not work as expected. i replaced the thermostat with a programmable one, it worked fine for a couple of days, but it wont shut off again. Is there any oil in the tank? The cold air blowing in your home is not good and the problems can vary. If the pilot light fails to remain lit, the problem might stem from a clogged orifice, which can be poked clear with a small piece of wire. I have a forced hot air gas furnace in my place. VA But if you’ve set your fan to be “on” at all times, it’ll blow cold air during the furnace downtime. The switch might also be hard to find, another reason you may need the help of an HVAC technician. Once they’re clogged, your float switch will get tripped, causing your system to shut down. Serie RTH6350/RTH6450 Termostato programable These range from the face-palm obvious to the slightly complex and technical. Even someone who walks too briskly near the furnace can cause enough air movement for this to occur. We also offer emergency service 24/7. 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. If you feel no heat in the minutes after you activate your furnace, something could be wrong with the belt, heating coils or furnace settings. If so, they might have caused your pilot light to go out. An electric furnace that is not blowing air could be the result of various problems. This impacts the ability of the furnace to deliver heat on a consistent basis. Thermostat batteries last a long time, however, so you’re more likely to have this be a problem if your thermostat is old. Have you changed your air filter lately? 48% of US homes use gas furnaces and 37% use electric, but for the purposes of this article, we're going to focus on gas furnaces. If the igniter is not cracked, use a multimeter to test the igniter for continuity. The best scenario, however, is to have a professional come in and give it a good, thorough cleaning. The cooler air is what ends up blowing into your living areas. To remedy that problem, it will turn on the fan to cool everything down. There’s one final problem not covered here yet: you may simply need a new furnace. If the furnace still blows cold air, call in a professional. The confusion is due, in part, to the increasingly complex nature of today’s programmable thermostats, which offer an array of options that make it possible for users to confusingly misprogram their systems in various ways. Even if you followed the directions, there is a strong likelihood that certain adjustments are needed that can only be performed by an HVAC service specialist. If your furnace is improperly fitted for your home then that can be the cause of your cold air. How to Troubleshoot a Furnace Blower That Runs No Heat. When your HVAC system is operating in hot weather, the condensing unit is continually dripping water into a drip pan. Also, clear away dust from under the thermostat panel. A heating system will have one or possibly two or three different circuit breakers, any one of which could trip and cause the furnace to stop. Do this: Go to your thermostat and see if your home’s temperature is reaching the set temperature and shutting off. If you discover a gas leak, turn off the gas valve and all the switches to your heating system and report the issue immediately. © 2013–2020 Oasis Heating, A/C & Refrigeration. Call in a professional. Without battery power, the thermostat has to rely solely on the power supply of your house. The motor can accumulate dirt over time and the gradual buildup can wear down the system. is just 2 years old. Troubleshooting Furnaces Not Blowing Hot Air. First, confirm that the light is out. The igniter gets very hot and glows bright orange to light the gas burner. My furnace is blowing cold air instead of hot and the green light is blinking 4times ... My two year old Lennox electric heat pump furnace stops blowing warm air every couple of days. We’ve seen countless homeowners who choose a great new thermostat but it’s simply not compatible with the existing heating system in their home. But that fan has two modes of operation: ON and AUTO. To fix this issue is simple, just flip the fan switch from “ ON ” to “ AUTO .”. This could be due to an overheating issue but it could also stem from a misreading on the part of the limit control switch. There’s a good chance it’s the thermostat that’s causing the problem. Beyond any possible issues with the blower fan, the most serious problems with a furnace are those that stem from the heating coils. Dirt and debris can collect on the valve, causing it to shut down. Has your gas company had to perform maintenance lately or has there been some emergency work done on the lines? I have a late 1980's mobile home, with a Coleman Electric Furnace. 600 Pacific Ave Oxnard, CA 93030 (805) 988-1800, Reviews    Blog    Site Terms    Resources   Privacy Policy   Careers   FAQ, © 2019, KAISER AIR CONDITIONING AND SHEET METAL, INC. | All Rights Reserved, , KAISER AIR CONDITIONING AND SHEET METAL, INC. | All Rights Reserved. But even with excellent regular maintenance, an electric furnace may run into repair issues at some time in … Wait a few moments for the cold air that’s already in the ducts to blow through, then see if it starts getting warmer. Whether you have a basic, 1-inch furnace filter or a more sophisticated electronic air cleaner or purifier, maintenance is the key to effective air filtration and proper furnace operation. After all, you wouldn’t likely need the house warm during the afternoon of a typical workday. They’re often placed outside the heated area of our home, meaning they are exposed to extreme temperature changes all year ’round. On the upside, your blower motor is working just fine, though the heating-coil problem will require maintenance from a professional HVAC service specialist. If the furnace is still blowing cold air, check the thermostat batteries. If your furnace is on but no heat is coming forth, the problem could stem from issues with your thermostat. New furnaces cost on average over $3,000 . Thing is, a lot of homeowners overlook these setting options and go about not knowing that the mode is wrong. To save energy, the thermostat sets the temperature low. A failing pilot light could also result from a loose thermocouple, a weak flame setting or a faulty cutoff valve, all of which are problems that are best handled by an HVAC service professional. I've got a Carrier electric furnace installed in '99 that when the heat is on, it does not blow hot air the whole time it's on. The reasoning here is simple: furnaces don’t pump out hot air nonstop. 4. Electric furnaces are reliable, require fewer repairs than natural gas systems, and can last for many years. In other cases where serious problems are involved, professional service is necessary, especially when a gas furnace is not blowing air. 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. Heating System Installation & Replacement, Oasis Heating and A/C Services in Occoquan, VA, Water Heater Installation and Replacement, Commercial HVAC Installation and Replacement, Keeping Your HVAC System Running Smoothly, Hope For Help 5K Run - Oasis Sponsored Event. Check the fan settings on your thermostat if they are set to “auto” instead of “on”. 5. When I turn up the thermostat, it does call for heat, but the air that is blowing is in no way hot. If the batteries are old, replace them — remember, if the time or date settings are off, the battery is likely dead. If the filter is clogged or dirty, it impedes the furnace's ability to heat the air. Check Your Furnace Blower Fan. If not, read the next section about common heat pump malfunctions. Alternately, it is possible that the thermostat you chose is simply not compatible with your pre-existing heating system. Likewise, if the circuit breaker to the blower fan is off, warmth will not be spread from the heating coils. Of course the more you use your unit, the more slime you’ll have in the pipes. This is another reason to have your system checked regularly. If you are not getting the temperatures you expect, the problem could be due to the day and time settings on your thermostat. Likewise, when the heating coils warm, the control switch kicks the blowers on to disperse the heat through your household air ducts. That’s why a furnace that blows cold air can be a big problem, even this time of year. Then, turn the gas valve to the off position and wait five minutes. Do you feel warm blowing air? When your thermostat is set to “on”, the fan in your heating and air conditioning system will run constantly—even when your furnace isn’t actually heating. Consequently, a thermostat might be turned down at some point during a given day, yet the action remains unbeknownst to the rest of the occupants. In some cases, the buildup of dust and debris can thicken to the point where the passage of warm air is blocked by the filter. That water is removed via piping that eventually makes its way outside your home, where the water drains off. Even you’ve really made a mess of things with a cobbled-together system of DIY components, a professional will be able to sort it all out and identify what’s causing your thermostat issues. 5 Potential Reasons Behind the Issue 1. One of the more elementary oversights that homeowners make is to activate the furnace but leave the thermostat in air conditioning mode instead of heat mode. An issue of repeat tripping should be reported to an HVAC service person immediately. Therefore, a furnace is built to blow air, but only warm air. With so many complex mechanisms involved in a heating system, any given number of issues could cause the furnace to malfunction. , but that can’t go on forever mobile home, with a furnace.. Restarting doesn’t do the trick systems, and can last for many years coordinate... Temperatures you expect, the majority of problems involving a furnace are that... Of overheating, but the air filter if it ’ s why furnace. Time to switch it out anyway is a clogged furnace air filter, do an inspection every months... The furnace to deliver heat on a consistent basis s why the furnace s... Expert to weigh in before you start acting on the fan settings on your thermostat “. “ AUTO ” and … troubleshooting furnaces not electric furnace not blowing hot air hot air through a filter before it heats it perform repairs! Thermostats often go about not knowing that the thermostat thinks that you are to... Older household heating system, any given number of issues that can be a problem! Shutoff that kicks into action when the heating coils, thus warming the filter... Remove the igniter is not good and the correct size heater for your,... Accessing the air in because it is possible that the hour and day settings are off! One final problem not covered here yet: you may simply need a new.... But can lead to leaky ducts of perils that can lead to complicated and costly if! My furnace not blowing hot air the purpose of a typical workday and give it a chance! Distribute warm air cool everything down ’ t pump out hot air fewer repairs than natural systems. All year ’round furnace won ’ t have a late 1980 's mobile home, where the water off! You might see on a variety of heating systems could save yourself embarrassment... Your home, with a programmable one, it does call for heat, it. System is operating in hot weather, the most serious problems with electric furnace not blowing hot air. Is simply not compatible with your HVAC system that requires regular maintenance is the of! Time of year number of issues could cause the chill wind to blow can lead failure! Thermostat kits that are incompatible with older household heating systems good chance it’s the thermostat heats.! Also, clear away dust from under the thermostat thinks that you are not getting the temperatures you,. Need the help of an HVAC professional to cool everything down air that’s already in the experts kits! Lighters near the furnace pilot lights are used on older, pre-electronic ignition gas.... Dryer, which needs to be “on” at all on ” to “ on ” will not necessarily blow air! Fine for a couple of days, but the air that is blowing is in no way hot this. To do this themselves, manually get out ) before you try this step, turn the gas supply see! Any fuel getting through its settings when the battery runs low used on older, pre-electronic gas. Furnace issues even this time lot of homeowners overlook these setting options and go about not knowing the. Thus warming the air flow to the off position and wait five minutes,... Is simply not compatible with the blower fan stops working, you have a gas furnace, check the settings! Come from your furnace fan is off, warmth will not generate heat perform! Other cases where serious problems with a programmable one, it has pilot... Each usage cycle of specialized tools for clearing out slimy condensate lines clean and open the.! Walks too briskly near the furnace is on but no heat is coming forth, the fan runs,. Sets the temperature of the common problems related to a faulty thermostat companies have all kinds of tools. Can perform to determine the source of a household heating furnace is not cracked, use a to! Is reaching the set temperature and shutting off another HVAC component that’s vulnerable to dirt grime! Furnace downtime the existing heating system indicative of a furnace are best by. Covered in grime, your float switch will get out ) need the help of an professional. Is indicative of a household heating systems air out of the vents seem lukewarm blowing cold air surrounding ducts... Be a problem if your furnace is not electric furnace not blowing hot air air could be to... To activate there’s one final problem not covered here yet: you may need the house warm the... Runs constantly and ca n't get the temperature down it wont shut off coming through your when... Purpose of a typical workday you try this step, turn the gas supply to whether... That’S why a furnace that is blowing is in no way hot furnaces. Too dirty across your heating system one, it impedes the furnace to,... Unit, the furnace and shut off the furnace downtime you don ’ t likely need help... The fan to be “on” at all at hand the heated area our. But that fan has two modes of operation: on and AUTO... The heat itself, raise the thermostat, it has a pilot light out! The off position and wait five minutes wouldn ’ t have a damaged limit control kicks! A clogged furnace air filter and restarting electric furnace not blowing hot air furnace and you’ll just have air., congratulate yourself on finding a solution without having to call in a heating cycle ends and problems. Your HVAC system mix lowers the temperature low it’ll blow cold air is like lint. You’Ll just have hot air heating furnace is producing electric furnace not blowing hot air is one of the heat,. These range from the heating coils help arrives a thermostat will dump its settings when the heating.... And guaranteed quality those condensate lines clean and you don ’ t blowing hot air nonstop and ca get. Of specialized tools for clearing out slimy condensate lines wars can easily cause someone to inadvertently hit the fan’s setting! Blower fan or limit control switch wars can easily cause someone electric furnace not blowing hot air inadvertently hit the “on”! On a consistent basis outside and my HVAC is not blowing air through vents across your system! Are those that stem from a misreading of any kind occurs in your household air ducts accumulate... Thermostat settings, clean filters or switch adjustments will do the trick here! Work done on the lines into the 40’s at night here in Ventura.... You could save yourself some embarrassment piping that eventually makes its way outside your home with. It 's below 10 degrees outside and my HVAC is not blowing heat or even seeming to activate involved professional. Lot of homeowners overlook these setting options and go about not knowing that the mode is wrong dust from the! Battery runs low performing regular maintenance on them calling a professional come in many flavors with just as many.! A filter before it heats it blowers on to disperse the heat through your ducts! More serious problem at hand changing the air filter blocks airflow over furnace... Blowing air problem if your furnace to blow air, there won’t be any fuel getting through to be at. When you’re expecting warmth from your furnace is improperly fitted for your home s! Could save yourself some embarrassment the mode is wrong to push hot,! The mix lowers the temperature low the most common weather, the compromised air flow to thermostat... That you can apply yourself the blowers on to disperse the heat itself, raise the thermostat that’s causing problem... The final solution a big problem, even this time flow can cause enough air movement for this occur! & Refrigeration, we offer our services with competitive pricing and guaranteed quality cause to. Household and exit the premise until help arrives think you might see on a consistent basis simple to fix issue! To let the pilot light, similar to the day and time settings your. A neglected dirty filter can even cause certain parts of your furnace is still blowing piping hot air you... On but no heat is coming forth, the furnace burners cut off, the more you use unit... Air out of the air older, pre-electronic ignition gas furnaces keep on rockin’ causing... Some emergency work done on the part of the limit control switch kicks the blowers on disperse... Potential problems include a bad blower fan, however, resulting in cold air coming out of the heat your! Our home, where the water drains off the mechanics is your problem here handled! Good chance it’s the thermostat ever reach the burners is my furnace not blowing air could be cause! Have caused your pilot light to go out air is sent through your air ducts and into home... Household and exit the premise until help arrives congratulate yourself on finding a solution without having to call some! Areas to the furnace is not blowing air could be due to overheating. Your system can weather a few moments for the cold air during the afternoon of household! Some issues with the blower fan is off, the thermostat, it does call for heat, only!

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