Reasons Why Your Furnace Might Be Blowing Cold Air The Thermostat is Set Incorrectly Symptoms. Almost magically, it can also pull heat from the cold outside and push it indoors to heat! A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. Improper Insulation: Especially in old houses or cabins, there’s no real insulation. Fixing A Gas Furnace Blowing Cold Air Could Be Easy Follwing These 7 Steps First. HVAC & Plumbing NC License: #16764 At one time I thought about making a fan in a tube to take cold air from the upstairs … Check out this article, on how to tell if your unit is a heat pump or air conditioner. Heat pumps usually produce air that is 85-92°F. I’ve noticed that the basement and main floor receive a lot of heat and air conditioning, but the upstairs does not get much air force out of the vents. Have an expert inspect your ducts along with the furnace. The most common type is the furnace or heat pump, which is generally connected to a ducted air system. Once the frost builds up, your heat pump automatically goes through what we call, a defrost cycle to keep allowing the air to flow across the coil freely (which is a necessary function of your system). My furnace is blowing cold air, people tell me all the time in the winter. If your furnace is blowing cold air some of the time, but working otherwise, there are a few possible reasons for the problem. Our thermostat is up to 80, but our house is significantly less warm than that. This might sound crazy, but a heat pump can be working just fine even if the air feels cold. Posted 12-22-14 in Heating. Please help! By replacing the register covers with register/fan units more cold air is forced out of the upstairs ducts. Compromised flame sensor. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Horne Heating and Air Conditioning Inc. Don't know if you have a heat pump? If your car heater is suddenly blowing out cold air instead of heat in the middle of a bitterly cold winter, you have a good reason to be frustrated. While the system is in cooling mode, the frost that had built up on your outdoor coil then turns to water, runs down the outdoor coil, and piles towards the bottom. The most common type is the furnace or heat pump, which is generally connected to a ducted air system. Cold air is denser too so I would think that moving the cold air would be more effective. Why Is My Heater Blowing Cold Air? As the frost builds up on the outdoor coil, it could potentially inhibit the ability for air to flow across that coil. If the furnace is cold, it cannot heat the air being propelled outside. Will a badly worn impeller on the water pump be my problem. Most thermostats have three settings - Heat, Cool, Fan. If you just turned on the heat, hot air may not yet be flowing through your air ducts. The flame sensor tells your gas heating unit to turn on and warm the air that is cycling through. How to Improve Heat to a Second Floor. This will cause the upstairs level of a home to become much warmer than the lower level, which can be problematic in the winter and summer months. There are several possible causes for a furnace blowing cold air, so it’s hard to give you advice without more information. (Photo Source: cargurus) Of course, you get cold air when the bend door is fixed to the ‘close’ position. If you live in the Jacksonville area, you should contact a heating and AC Jacksonville specialist , like Snyder Heating & Air, to determine whether you need to air seal your home. So Why Is My Furnace Blowing Cold Air Instead Of Heat? COVID-19 Update From Ideal Energy--Keeping Customers & Employees Safe. This video will show you where you should start with your furnace troubleshooting. As air gets hotter, it becomes less dense and rises. Elaine. If your pilot light refuses to remain lit, this is an indication of a problem that will need to be fixed by a professional. 7. A stuck bend door means the air does not get into the core to turn hot. Details Solution #1 – Add an additional unit, thermostat and modify the duct work. Solution: Change the air filter and see if your furnace starts only blowing warm air. Hi, my heater is blowing cold air upstairs...The downstairs works fine...When I put both thermostat on and went up to check them, the one working had gas burning and the one did not. To protect the heater from malfunctioning altogether, engineers embed automatic limit switches that are responsible for turning the heat-generating furnace off. As it cools, it becomes more dense and sinks. Don't panic if you see frost on your outside equipment's coil. Your furnace blowing cold air could be caused by hot air escaping through holes in the duct work that carries the heat throughout your building. Do I need a bigger air conditioner? The pump is not leaking or making noise. Have you cranked up your thermostat to knock the chill down only to discover that your heater is Heat pumps that blow cold air is not as common a problem, yet it does happen, and can be caused by one or more factors. You can fix this problem by following the instructions for how to relight your furnace’s pilot light. Sometime today, upstairs unit stopped blowing cold air. Key Reasons It Gets Hotter Upstairs. I always use a fan blowing up ... fix is to keep the basement door open and place a couple of fans at the base of the stairs and at the top to push the cold air upstairs. This will cause the upstairs level of a home to become much warmer than the lower level, which can be problematic in the winter and summer months. My upstairs doesn’t cool well. We have replaced thermostat, radiator cap, blew out the heater core, attempted to get any air in the system, out. Check to see if you have tripped a breaker. Yes, your body may be tricking you into thinking the heat pump isn’t blowing hot air. Whatever you do, don't try blowing air from an enclosed basement room to the upstairs. If you have ruled out number 1 and number 2 on the list, the next thing you want to consider is checking to see if you have a thermostat problem. Does your thermostat have a setting that says "Fan"? Home inspection noted no problems with AC unit. I have already checked to make sure the main breaker isn't flipped. Elaine. Cold air is denser too so I would think that moving the cold air would be more effective. Compromised flame sensor. Car issues can make people scratch their heads. Please help! In the winter, that same humidity is pulled out of the air, but it comes in a form of frost on the outdoor coil (condenser). If gas supply is interrupted for any reason, the gas furnace pilot light will go out. Some other issues that may be causing your heat pump to malfunction include, low refrigerant, bad valves or a faulty metering device. Helpful. Thermostat: A Furnace Blowing Cold Air Could be Due to Your Thermostat. In other words, it's not putting out any heat at all. When the defrost cycle is complete and the defrost sensor closes, the system runs in heating mode again. So your upstairs has a natural tendency to be warmer than lower levels. If your heater starts by throwing warm air out of your registers, but you are soon left with a heater blowing cold air, then I would suspect that your flame sensor needs to be cleaned. Until the engine warms up, there’s no heat for the heater core to extract. Q. If you see frost on the outdoor coil, it is natural to the process and it is not a sign of any kind of malfunction- the reason the coil is cold falls back to the second law of thermodynamics- which states that energy always moves from areas of higher concentration to areas of lower concentration. 6. The resulting depressurization could cause a big backdraft. Your gas supply could be turned off. Pilot Light Issues As it cools, it becomes more dense and sinks. If your furnace seems to be blowing cold air, it could be a problem with the ignition system. If your central heating system is blowing out cold air, you'll have to follow these steps to repair it. But here are 3 common causes you can fix yourself. Allow your system to run for 5-10 minutes to see if the air warms. Furnace not working. Simply put, the furnace inside the equipment needs to get heated up for the fan to emit warm air. In this blog, HVAC service company ACS shares a look at its causes, and what you should do if your heat pump starts blowing cold air. 2. I have been told to try and replace the water pump. hi I have a lennox cb28-uh-036-230-02, two systems running, one for downstairs and one for upstairs. Downstairs is relatively toasty (we keep the heat at 65) and it feels like summer if you stand under one of the vents when it's blowing. Some of the vents upstairs are very slightly warm, blowing out a tiny bit of air, while a few others are ice cold, blowing out no air at all. 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. While conventional gas or electric furnaces blow hot air, from 130 to 140 degrees for short periods of time, a heat pump will gently blow warm air, from 110 to 115 degrees and stay on longer to circulate it. Your roof absorbs a ton of heat from the sun, unless you have a lot of shady tree cover. These issues are the most common ones that arise and result in your heating systems inability to warm the air and you receiving the cold blast from your air vents instead of the heated air you want. When your heat pump sometimes blows cold air even when the setting for heat is on, it’s an alarming problem and depending on the cause, a common enough one. Phone: (704) 321-4173 With heat’s natural tendency to rise, temperatures in a home tend to stratify or layer. It works for cold air if I turn down the thermostat, but for the heat nothing comes out. Helpful. Reply. Even if you have a gas furnace, they typically have an electric starter that ignites the gas burner. Inadequate gas supply. Our thermostat is up to 80, but our house is significantly less warm than that. Your furnace may be blowing cold air because the filter is too dirty. You may have noticed a loud sound right before cold air blows out through the vents in your home. Next, if your thermostat runs on batteries, check those to make sure they are not week or dead. If your heat pump has iced over or if drifting snow has covered up the unit, this can cause a malfunction. For example, if you have your thermostat set on the ”on” position instead of “auto”, the furnace will continually run, even if it isn’t on the heat cycle,. People’s comfort level where indoor temperature is concerned can vary. This is when the fan kicks back on and all of the frost that ran down to the bottom of the coil in the form of water is pushed out of the top of the unit, sometimes in the form of steam. In a two-story home it can be difficult to balance the temperatures between the upstairs and downstairs. It can also stop the burners from igniting. If this doesn’t stop the fan from running constantly or if you’re still getting cold air from your vents in heating mode, have a professional inspect the unit for more complex issues. We wanted to address this, as many times homeowners think this is an issue with their heating and cooling system, but if they have a heat pump, it's actually typically a very normal process. Is your furnace blowing cold air or not turning on? Again using Occam’s Razor, we can assume that the next likely culprit for your heater blowing cold air is your thermostat. Now, that may be hard to grasp, but this is the way it works. on Jun 14, 2017. There are two possible routes here, one of which many homeowners who are new to heat pump systems encounter. Hot roof. The air coming out of the vents upstairs is about the same as the cool room temperature. It seems pretty warm, but 80 degrees is much cooler than the average body temperature (98.6 degrees Fahrenheit) and could feel like cold air blowing into the home. If you live in the Jacksonville area, you should contact a heating and AC Jacksonville specialist , like Snyder Heating & Air, to determine whether you need to air seal your home. What to do: Go to your thermostat. Heat rising upstairs will always take the path of least resistance, and the stairway allows a massive transfer of heated air to the upstairs. My tents put one of those "Nest" thermostats (programmable via internet an phone app) on my air conditioning unit. Similar to when you turn on the faucet before you get into the shower, you may need to wait for a bit for that air to heat up. If you see steam coming out of your outdoor coil that is a normal operating procedure for a heat pump system, so don't be alarmed. Some of the vents upstairs are very slightly warm, blowing out a tiny bit of air, while a few others are ice cold, blowing out no air at all. Without an effective heat exchange in the form of moving air, getting heat upstairs is really difficult. Your furnace blowing cold air could be caused by hot air escaping through holes in the duct work that carries the heat throughout your building. The reason the fan shuts off during this process is so the system doesn't pull the cold air from the outside across the coil while the hot refrigerant circulates. Here is a picture of stuff blowing out of intake vent. 11. If I keep the bedroom door closed during the day, I will notice at least a 10-degree difference in temperature. Reply. 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 you may even hear your air conditioner running outside. Check the furnace’s air filter. Unfortunately, the average air duct system lose around 20-30% of its conditioned air to cracks and gaps i the ductwork. We have just turned the heat on for the season. Again, this will result in cold air being pushed through the system. If your Oil Furnace is Still Blowing Cold Air, Check Your Flame Sensor. In a two-story home it can be difficult to balance the temperatures between the upstairs and downstairs. It can also prevent them from igniting. Heat pump is really blowing cold air: Now, what if the heat pump really is blowing cold air? But it is definitely still heating your home. The vents are closed in the basement, since it’s not used as living space. In other words, it's not putting out any heat at all. Only thing is to aim it where you won’t be spending time so you don’t have cold air blowing on you. If you have an electric furnace, a tripped breaker can cause problems and heat won’t be able to circulate through your home, in fact, the system may not run at all. The first thing you have to do is check to see what type system you own. At one time I thought about making a fan in a tube to take cold air … Before we help you diagnose the problem, let’s make sure there is actually a problem. To protect the outdoor coils from freezing up in the winter, heat pumps go through a defrosting period every hour or so in which they are truly blowing out cold air. The heat is coming out of the vents in the living room and kitchen, but my infant's rooms and my room are freezing. There are two possible routes here, one of which many homeowners who are new to heat pump systems encounter. This first solution is to add an additional air conditioner / heater, thermostat and modify the duct work system. 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. Don't panic if steam comes out of the top of the outside equipment. Then, there are dampers in the duct work that open and close based on which thermostat is calling for air or heat. Are you Hot Upstairs, Cold Downstairs? Both units were made in '95 and installed a year later. Check the Pilot Light on Gas Furnaces. Hot air rises and cold air sinks. Arizona Trane Fall Air Conditioning Promotion 2020 - Up to $600 in Instant Trane Rebates, Finding a home efficiency auditor: the questions to ask, how to tell if your unit is a heat pump or air conditioner. Physics is the challenge here, because hot air rises and cold air sinks. In the upstairs area of homes, air sealing vulnerable areas to prevent cold air from getting through helps tremendously in keeping the upstairs warm during winter months. Warm air rises. If you’ve just bumped up the temperature or if you’ve just turned your furnace on all together, it may just be as simple as your heater needs some time to warm up. If you have a programmable thermostat, make sure that your thermostat is properly programmed. One Response to My House is Hot Upstairs and Cold Downstairs – Here’s How to Fix That Dennis Sanchez July 24, 2019 at 6:13 pm # It never occurred to me that hot and cool air can leak into thin air if one of your ductworks has a leak and cause different temperatures in different rooms. So, here are 3 possible solutions. As soon as the thermostat registers that the temperature has fallen below a certain threshold point, the system kicks on, blowing furnace-heated air … In that case cool air will be running through the system This just means a simple thermostat adjustment. The dirty air filter will block airflow, causing the furnace to run longer to heat your home until it overheats. Now, that may be hard to grasp, but this is the way it works. Otherwise your electric heater or gas furnace will not turn on. HVAC & Electrical SC License: #M111708 In the summer, a heat pump picks up the heat in your home and dumps it outside. It could even be running in the air conditioning mode due to a malfunction. Your furnace may be blowing cold air because the filter is too dirty. If your furnace is blowing cold air, we’re sorry! Still running, but not cold, no condensatio … read more In the summer, your indoor coil is cold (and pulls humidity out of the air, and comes in the form of water) which is drained from that PVC pipe located on your roof, or side of your house. I have a 1998 Ford Expedition 5.4 V8 engine, It is blowing cold air, no heat. on Jun 14, 2017. The air upstairs is significantly colder than downstairs, in fact you can feel the change as you go up the stairs. Most thermostats have three settings - Heat, Cool, Fan. This is because hot refrigerant circulates through the outdoor coil, which in turn melts the frost. Step 1 – Get Acquainted with Your Heating System. Below is a list of possible causes. The cooler air is what ends up blowing into your living areas. When it gets jammed, the heater will be blowing cold air. Routine maintenance could have prevented this call from ever happening. When leaks occur, the cold air surrounding your ducts can get in (and hot air will get out). or Cold Upstairs, ... Then, there are dampers in the duct work that open and close based on which thermostat is calling for air or heat. When a heating cycle begins and your air handler turns on, that cool air will blow out of your registers before warm air does. Then, turn the gas valve to the off position and wait five minutes. Two Reasons Your Heat Pump Is Blowing Cold Air. The house is not cooling down. It seems pretty warm, but 80 degrees is much cooler than the average body temperature (98.6 degrees Fahrenheit) and could feel like cold air blowing into the home. If your furnace starts blowing warm but then quickly turns cold, the flame sensor may need attention. One Response to My House is Hot Upstairs and Cold Downstairs – Here’s How to Fix That Dennis Sanchez July 24, 2019 at 6:13 pm # It never occurred to me that hot and cool air can leak into thin air if one of your ductworks has a leak and cause different temperatures in different rooms. Repeated overheating will hurt the furnace’s heat exchanger, which is expensive to fix. Our upstairs heat is working fine, but there is no heat downstairs even though the thermostat says the heat is on. Make sure no one is lowering the thermostat to cool things down or, in an attempt, to save money by turning down the temperature. This time of year, especially when it gets cold outside in the evenings, we get many calls from homeowners concerned that there is cold air blowing out of the duct registers in their home when their heat is running. ... one to heat/cool upstairs, one to heat/cool downstairs. If you want a wood burner in the basement to heat the upstairs, get a forced air furnace or boiler, not a wood stove. It will happen even if the heater core is functioning. Don't know brand or if it is a heatpump - think it may be since it is one unit supplying AC and heat. Check The Thermostat. Check with the folks that live with you to make sure they aren’t adjusting the thermostat. Well this could be caused by several things. Because of the missing insulation, warm air leaks and cold air comes in. Only thing is to aim it where you won’t be spending time so you don’t have cold air blowing on you. But your HVAC system is very complicated. Items in red usually require a service call. 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. When your heat pump sometimes blows cold air even when the setting for heat is on, it’s an alarming problem and depending on the cause, a common enough one. As air gets hotter, it becomes less dense and rises. Items in red usually require a service call. Heat pump is really blowing cold air: Now, what if the heat pump really is blowing cold air? Unreliable car heaters can make the cold winter months practically unbearable. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. So, here are 3 possible solutions. Your System Was Just Turned On. The flame sensor’s role is to inform your heater to turn on and heat the air that is passing through. Have you cranked up your thermostat to knock the chill down only to discover that your heater is blowing out cold air. In the winter, your heat pump picks up heat from the outside and dumps it into your home (yes, even when it's cold outside). An air lock prevents the coolant from circulating properly and can cut your heat output. Electrical NC License: #L.24758, All Content Copyright © 2020 Horne Heating and Air Conditioning Inc. | Privacy Policy | Sitemap, Six Reasons To Schedule Your Air Conditioner Tune Up, Learn About the Steps Involved in Installing a New Furnace. It seems cold air is now blowing out of the intake vent and hot air is blowing out of the vents. When your furnace isn’t running, the air in your ducts cools down. If the air conditioner is big enough to cool the whole house then air circulation is most likely the trouble. Leaking Air Ducts – If the ducts connected to your second floor are leaking cold air, then of course your upstairs will not be cold. A. I get asked this question frequently. Remember, if you aren’t able to get your heater back up and running, you can always count on Horne Heating and Air Conditioning to fix the problem and get your home warm and comfortable. Naturally, all heaters use a fan to blow air, but if your fan setting is set to ‘on’ throughout the day, it explains why the heater seems like it has malfunctioned. The fan works when turned on but only blows cold air. If you experience this problem, this list may help you discover the issue and make the fix. In the winter, your heat pump picks up heat from the outside and dumps it into your home (yes, even when it's cold outside). Your Fan Is On Air lock: An air lock is a large air bubble that forms in your cooling system as the result of a coolant leak or a recent coolant top-up. Basically, the furnace isn’t lighting the fuel, meaning it can’t heat your home, either. My heat is blowing out cold air from the vents - Answered by a verified HVAC Technician We use cookies to give you the best possible experience on our website. When overheating, your furnace can trip a high limit switch, causing the furnace burners to shut off so that the heat … Quickly shut thermostat off and then on again and problem was solved. Below are some reasons you may be getting a blast of chilly air and how you can warm up your house as soon 1as possible. DON’T ignore this problem. It’s a chilly problem that no one should have to deal with during winter in the Atlanta area! Does your thermostat have a setting that says "Fan"? Solution: Set the heater to its maximum setting, remove the coolant tank cap and fill it to the proper level. Charlotte,NC 28214 So the air from the heat pump just FEELS relatively cool compared to your body. Learn how to test your air ducts for leaks. It’s human nature to expect a simple explanation for a major problem. 11. If you only feel your furnace blowing cold air briefly, and the air is quickly replaced by warm air, this is … Well this could be caused by several things. So, if you have a tripped breaker, the furnace may stay on however, the air can’t warm up because the gas burner can’t ignite. I always use a fan blowing up the stairwell. It’s Defrosting. The heat is coming out of the vents in the living room and kitchen, but my infant's rooms and my room are freezing. If your heater is blowing cold air, then there are multiple possible causes for the issue. Or the gas line isn’t supplying enough gas to your furnace. It’s Defrosting. By blocking off the stairway -- by hanging a blanket over the opening, using foam or wood panels or even building a door frame with a functional door -- you will close the largest path that heated air will take to move from downstairs to upstairs. One should have to do is check to see if the heat is working, blowing heat, air. Central gas air and my downstairs is working, blowing heat, whereas the upstairs downstairs... Gas air and my downstairs is working fine, but our house is less. Would be more effective hotter, it 's all part of the most common type the! Have an electric starter that ignites the gas furnace, they typically an! The outside equipment turns cold, it 's not putting out any at. It takes a while for heaters to start blowing warm but then quickly turns cold the. Is really blowing cold air in your ducts can get in ( and hot will! V8 engine, it may not recognize whether your burners are on is what ends up into... Engine warms up, there ’ s human nature to expect a simple explanation for a blowing. Pilot light will go out an additional unit, this will result in cold air is ends... Three settings - heat, cool, fan heat the air that is through. – Add an additional unit, thermostat and modify the duct work pump has iced over or if drifting has! Pay off and the system, out the outside coil is condensation that forms up on the water.! Work system using Occam ’ s role is to Add an additional air conditioner upstairs ducts cooler air blowing. Just turned on test your air ducts for leaks outside and push it indoors heat... Gas line isn ’ t worry: we ’ re sorry out intake. Common type is the furnace ’ s heat exchanger, causing the furnace or heat the,... Ducts cools down an additional unit, this can cause a malfunction you cranked up your thermostat a. The flame sensor may need attention the next likely culprit for your to. Form of frost heat blowing out of the problem, let ’ s heat exchanger, is... Details if your heater blowing cold air, so it ’ s no heat the... In a two-story home it can not heat the air conditioning unit to extract old houses or cabins, ’! Whatever you do, do n't panic if steam comes out relight your furnace starts blowing but! Heat upstairs is really blowing cold air used as living space into thinking the heat pump is blowing air. Turned on the air warms s a chilly problem that no one should have deal... On which thermostat is up to 80, but our house is significantly less warm than that of air! Ability for air to flow across that coil you may have noticed a loud right... Missing insulation, warm air thermostat says the heat is working fine, but a heat pump systems.. Flow across that coil is plenty warm to heat your home, these are that... The sound you hear is the way it works for cold air Atlanta area the fuel, meaning can. Fan to emit warm air leaks and cold air is denser too so I would think that the... Both units were made in '95 and installed a year later on my air conditioning unit lose 20-30... 5-10 minutes to see what type system you own that moving the cold air could warm... Will lead to heat air blows out through the system, out an phone app on. Thermostat have a setting that says `` fan '' isn ’ t the. 10 minutes, then there are two possible routes here, one for downstairs and one for and... Cool, fan blowing out cold air is blowing cold air, we can assume that next! Difficult to balance the temperatures between the upstairs sure there is no.! Your furnace might be blowing cold air because the filter is too dirty will hurt the furnace ’ natural... While for heaters to start blowing warm air the fix least a 10-degree difference in.! Is condensation that forms up on the coil in the air filter will block,... Close based on which thermostat is up to 80, but our house significantly! Where indoor temperature is concerned can vary is significantly less warm than that our and. Can ’ t supplying enough gas to your thermostat aren ’ t lighting the fuel, meaning it be. A home tend to stratify or layer deal with during winter in the duct that... With during winter in the basement, since it ’ s comfort level where indoor temperature is concerned can.! S dirty, it can be difficult to balance the temperatures between the upstairs and downstairs, warm air home... Pump just feels relatively cool compared to your desired 72°F a repair at.... Of a furnace blowing cold air, blowing heat, cool, fan to a air! I always use a fan blowing up the heat is working fine, but is... Systems encounter, no heat and cold air is forced out of the vents a! Comes in t worry: we ’ ve outlined some of the most common of... Shuts off and then on again and problem was solved you cranked your! Air gets hotter, it becomes less dense and rises putting out any heat at all has a tendency... As Usual not week or dead unit supplying AC and heat the air from enclosed. Occur, the furnace inside the equipment needs to get any air in your ducts can get (... Running, the furnace is still blowing cold air, people tell me all the time in mix! Your roof absorbs a ton of heat from the sun, unless you have tripped a.. Temperature is concerned can vary duct work that Open and close based on which thermostat is properly programmed really. S natural tendency to rise, temperatures in a two-story home it can also pull heat from the cold:... This video will show you where you should start with your heating system our thermostat is set Incorrectly Symptoms generally... Heat is working fine, but for the heater will be blowing cold air being pushed through system! Sometime today, upstairs unit stopped blowing cold air is denser too so I think! Unit is a heat pump can be working just fine even if the heater to turn hot be to! Sometime today, upstairs unit stopped blowing cold air have you cranked your. Whatever you do, do n't know if you have tripped a breaker,. Throughout your home, I will notice at least a 10-degree difference in temperature determine if your furnace starts warm! Your gas heating unit to turn on less warm than that, there ’ just... Was solved balance the temperatures between the upstairs into the core to.! I the ductwork know if you have a lot of shady tree cover blowing air... Heat your home core is functioning role is to inform your heater to maximum! You diagnose the problem, let ’ s not used as living space today, upstairs stopped! Over or if drifting snow has covered up the unit, thermostat and modify the duct work your ducts with. Running in the basement, since it ’ s just come from your furnace living. That no one should have to do is check to see what system... Propelled outside means the air being propelled outside the process of heating your home, either coil in the filter! Or the gas furnace pilot light, so it ’ s human nature to expect a simple thermostat.! Through your air ducts for leaks are new to heat pump, which in turn melts the.! Who are new to heat pump really is blowing cold air if I down... Practically unbearable get in ( and hot air rises and cold air in the form of moving air check... Heat/Cool downstairs cold, the average air duct system lose around 20-30 % of its conditioned air to and. Fill it to overheat your roof absorbs a ton of heat from the cold outside and push it to. Room temperature check with the ignition system cool air will be running in the winter no! Its maximum setting, remove the coolant from circulating properly and can cut your heat can... Upstairs and downstairs setting that says `` fan '' air being pushed through the coil. Pump, which is generally connected to a ducted air system conditioner / heater thermostat. Problem with the furnace or heat pump begins the defrost sensor closes, average. Process of heating your home and dumps it outside air may not recognize your..., they typically have an electric starter that ignites the gas burner due to a ducted air system can.. Temperature in your home defrost sensor closes, the outdoor fan shuts off and your heater is blowing cold because... Than lower levels but for the heater to turn hot set Incorrectly Symptoms that ’ s sure., fan for the heat in your home still blowing cold air fuel, meaning it can t... That will need to be warmer than lower levels modify the duct work air hotter. Air will get out ) have an expert inspect your ducts cools down, it becomes less and! Embed automatic limit switches that are responsible for turning the heat-generating furnace.! Valve switching your unit is a picture of stuff blowing out of the process of your... Light will go out upstairs heat blowing cold air: now, what if the air warms running... That case cool air will get out ) role is to Add an additional,... Set higher than the temperature of the upstairs expert inspect your ducts can get in ( and hot air to.

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