Again using Occam’s Razor, we can assume that the next likely culprit for your heater blowing cold air is your thermostat. 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 I keep the bedroom door closed during the day, I will notice at least a 10-degree difference in temperature. When a heat pump begins the defrost cycle, the outdoor fan shuts off and the system switches over to cooling mode. The first thing you have to do is check to see what type system you own. Car issues can make people scratch their heads. 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. Your roof absorbs a ton of heat from the sun, unless you have a lot of shady tree cover. It can also stop the burners from igniting. When leaks occur, the cold air surrounding your ducts can get in (and hot air will get out). 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. It could even be running in the air conditioning mode due to a malfunction. Reply. It’s a chilly problem that no one should have to deal with during winter in the Atlanta area! I have central gas air and my downstairs is working, blowing heat, whereas the upstairs stopped working. This might sound crazy, but a heat pump can be working just fine even if the air feels cold. 6805 Craig Street The air coming out of the vents upstairs is about the same as the cool room temperature. on Jun 14, 2017. 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. 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. 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. This is something you can easily fix yourself. 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. Cold air is denser too so I would think that moving the cold air would be more effective. 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. 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. Until the engine warms up, there’s no heat for the heater core to extract. The cooler air is what ends up blowing into your living areas. In the summer, a heat pump picks up the heat in your home and dumps it outside. If your central heating system is blowing out cold air, you'll have to follow these steps to repair it. Check The Thermostat. 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). The vents are closed in the basement, since it’s not used as living space. My Heat Pump is Blowing Cold Air in “Heat” Mode! If the furnace is cold, it cannot heat the air being propelled outside. If your heat pump has iced over or if drifting snow has covered up the unit, this can cause a malfunction. At one time I thought about making a fan in a tube to take cold air … Even if you have a gas furnace, they typically have an electric starter that ignites the gas burner. Don't panic if steam comes out of the top of the outside equipment. Quickly shut thermostat off and then on again and problem was solved. When the defrost cycle is complete and the defrost sensor closes, the system runs in heating mode again. Or the gas line isn’t supplying enough gas to your furnace. You may have noticed a loud sound right before cold air blows out through the vents in your home. If your furnace starts blowing warm but then quickly turns cold, the flame sensor may need attention. 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. 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. Inadequate gas supply. Why Is My Heater Blowing Cold Air? Cold air is denser too so I would think that moving the cold air would be more effective. Let us explain… The air could be warm but still feel cool. Compromised flame sensor. By replacing the register covers with register/fan units more cold air is forced out of the upstairs ducts. Two Reasons Your Heat Pump Is Blowing Cold Air. If you want a wood burner in the basement to heat the upstairs, get a forced air furnace or boiler, not a wood stove. Warm air rises. Both units were made in '95 and installed a year later. Does your thermostat have a setting that says "Fan"? As air gets hotter, it becomes less dense and rises. Solution #1 – Add an additional unit, thermostat and modify the duct work. This is the reason that it takes a while for heaters to start blowing warm 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). Don't panic if you have a heat pump and if cold air blows out of your duct work for a little while on and off while you run your heat at home. This might sound crazy, but a heat pump can be working just fine even if the air feels cold. 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 house is not cooling down. Don't know if you have a heat pump? There are two different system types: forced air duct systems that push warm air with the aid of a blower into the system and vents, and gravity furnace systems that use convection currents to circulate the warm air. 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. Check with the folks that live with you to make sure they aren’t adjusting the thermostat. One of the most common causes of a furnace blowing cold air is not actually a repair at all. We answer the most common issues causing your gas furnace to blow cold air instead of heat… The flame sensor’s role is to inform your heater to turn on and heat the air that is passing through. As air gets hotter, it becomes less dense and rises. 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. 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. Phone: (704) 321-4173 Hot roof. Key Reasons It Gets Hotter Upstairs. Improper Insulation: Especially in old houses or cabins, there’s no real insulation. 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. Next, if your thermostat runs on batteries, check those to make sure they are not week or dead. If your furnace seems to be blowing cold air, it could be a problem with the ignition system. Learn how to test your air ducts for leaks. Details You can fix this problem by following the instructions for how to relight your furnace’s pilot light. Please help! Whatever you do, don't try blowing air from an enclosed basement room to the upstairs. Almost magically, it can also pull heat from the cold outside and push it indoors to heat! Charlotte,NC 28214 This is plenty warm to heat your home to your desired 72°F. Horne Heating and Air Conditioning Inc. The resulting depressurization could cause a big backdraft. We have just turned the heat on for the season. Below is a list of possible causes. 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. This first solution is to add an additional air conditioner / heater, thermostat and modify the duct work system. This too can cause your heater to blow cold air. The reason for this, is that in the cooling mode, the outdoor coil actually becomes hot. The flame sensor tells your gas heating unit to turn on and warm the air that is cycling through. So, here are 3 possible solutions. Your gas supply could be turned off. That outside air in the mix lowers the temperature of the air that’s just come from your furnace. Only thing is to aim it where you won’t be spending time so you don’t have cold air blowing on you. Well this could be caused by several things. Check out this article, on how to tell if your unit is a heat pump or air conditioner. The fan works when turned on but only blows cold air. 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. Don't panic if you see frost on your outside equipment's coil. It works for cold air if I turn down the thermostat, but for the heat nothing comes out. Items in red usually require a service call. What to do: Go to your thermostat. If your flame sensor is dirty, it may not recognize whether your burners have turned on. There are two possible routes here, one of which many homeowners who are new to heat pump systems encounter. There are several possible causes for a furnace blowing cold air, so it’s hard to give you advice without more information. It will happen even if the heater core is functioning. 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. Without an effective heat exchange in the form of moving air, getting heat upstairs is really difficult. 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. 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. Frost on the outside coil is condensation that forms up on the coil in the form of frost. Otherwise your electric heater or gas furnace will not turn on. 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. 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. Solution: Change the air filter and see if your furnace starts only blowing warm air. 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. 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. 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,. My furnace is blowing cold air, people tell me all the time in the winter. It's all part of the process of heating your home with a heat pump! If this doesn’t happen after 10 minutes, then you are looking at another issue. 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. Again, this will result in cold air being pushed through the system. Almost magically, it can also pull heat from the cold outside and push it indoors to heat! 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. If your heater is blowing cold air, then there are multiple possible causes for the issue. 7. It seems cold air is now blowing out of the intake vent and hot air is blowing out of the vents. Have an expert inspect your ducts along with the furnace. Compromised flame sensor. 6. The heat is coming out of the vents in the living room and kitchen, but my infant's rooms and my room are freezing. Then, turn the gas valve to the off position and wait five minutes. (Photo Source: cargurus) Of course, you get cold air when the bend door is fixed to the ‘close’ position. ... one to heat/cool upstairs, one to heat/cool downstairs. When it gets jammed, the heater will be blowing cold air. Make sure your thermostat is set to HEAT and your fan is set to AUTO. Elaine. Posted 12-22-14 in Heating. 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. If the air conditioner is big enough to cool the whole house then air circulation is most likely the trouble. Your furnace may be blowing cold air because the filter is too dirty. 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. on Jun 14, 2017. When your furnace isn’t running, the air in your ducts cools down. DON’T ignore this problem. As it cools, it becomes more dense and sinks. In a two-story home it can be difficult to balance the temperatures between the upstairs and downstairs. What can I do as someone who doesn't know anything about heating before I call a professional? 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. Solution: Set the heater to its maximum setting, remove the coolant tank cap and fill it to the proper level. Items in red usually require a service call. It could even be running in the air conditioning mode due to a malfunction. Don't know brand or if it is a heatpump - think it may be since it is one unit supplying AC and heat. 2. Then, there are dampers in the duct work that open and close based on which thermostat is calling for air or heat. Hopefully, being patient will pay off and your heater will soon be sending warm cozy air throughout your home. Solution #1 – Add an additional unit, thermostat and modify the duct work. Repeated overheating will hurt the furnace’s heat exchanger, which is expensive to fix. It’s Defrosting. The sound you hear is the reversing valve switching your unit over to cooling mode. If you only feel your furnace blowing cold air briefly, and the air is quickly replaced by warm air, this is … Some other issues that may be causing your heat pump to malfunction include, low refrigerant, bad valves or a faulty metering device. HVAC & Electrical SC License: #M111708 If your Oil Furnace is Still Blowing Cold Air, Check Your Flame Sensor. This will lead to heat blowing out cold air. Have you cranked up your thermostat to knock the chill down only to discover that your heater is The heat is coming out of the vents in the living room and kitchen, but my infant's rooms and my room are freezing. Our upstairs heat is working fine, but there is no heat downstairs even though the thermostat says the heat is on. Don’t worry: we’ve outlined some of the most common causes of the problem below. Your System Was Just Turned On. Helpful. Is your furnace blowing cold air or not turning on? Check to see if you have tripped a breaker. The first thing you have to do is check to see what type system you own. 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). 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. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. ... 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. 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. 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. The most common type is the furnace or heat pump, which is generally connected to a ducted air system. Unfortunately, the average air duct system lose around 20-30% of its conditioned air to cracks and gaps i the ductwork. 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. 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. 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. Check the furnace’s air filter. Here is a picture of stuff blowing out of intake vent. When a heating cycle begins and your air handler turns on, that cool air will blow out of your registers before warm air does. Our thermostat is up to 80, but our house is significantly less warm than that. My upstairs doesn’t cool well. 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. Before we help you diagnose the problem, let’s make sure there is actually a problem. COVID-19 Update From Ideal Energy--Keeping Customers & Employees Safe. It’s also the reason that a plugged heater core, stuck thermostat, or air in the cooling system can all cause a car’s heater to blow cold. So your upstairs has a natural tendency to be warmer than lower levels. Elaine. Routine maintenance could have prevented this call from ever happening. Have you cranked up your thermostat to knock the chill down only to discover that your heater is blowing out cold air. 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. To protect the heater from malfunctioning altogether, engineers embed automatic limit switches that are responsible for turning the heat-generating furnace off. Heat pumps usually produce air that is 85-92°F. First, confirm that the light is out. Changing the air filter can possibly fix the cold air problem, but only if that’s the only problem that is keeping the heat from blowing hot air as opposed to cold air. Simply put, the furnace inside the equipment needs to get heated up for the fan to emit warm air. Heat pump is really blowing cold air: Now, what if the heat pump really is blowing cold air? Does your thermostat have a setting that says "Fan"? If it’s dirty, it may not determine if your burners are on. A Note About Our Hours and COVID19: Open As Usual! So Why Is My Furnace Blowing Cold Air Instead Of Heat? If your furnace starts blowing warm but then quickly turns cold, the flame sensor may need attention. Unfortunately, these are issues that will need to be remedied by a professional. If you just turned on the heat, hot air may not yet be flowing through your air ducts. 11. An air lock prevents the coolant from circulating properly and can cut your heat output. Hot air rises and cold air sinks. I always use a fan blowing up the stairwell. It’s Defrosting. As the frost builds up on the outdoor coil, it could potentially inhibit the ability for air to flow across that coil. Are you Hot Upstairs, Cold Downstairs? 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. 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. But here are 3 common causes you can fix yourself. There are two possible routes here, one of which many homeowners who are new to heat pump systems encounter. Fixing A Gas Furnace Blowing Cold Air Could Be Easy Follwing These 7 Steps First. Most thermostats have three settings - Heat, Cool, Fan. 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. Home inspection noted no problems with AC unit. Now, that may be hard to grasp, but this is the way it works. At one time I thought about making a fan in a tube to take cold air from the upstairs … Check the heater core or the bend door. 2nd story homes consistently struggle to cool the upstairs and usually run 5+ degrees off from the thermostat reading on […] In a two-story home it can be difficult to balance the temperatures between the upstairs and downstairs. 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. Do I need a bigger air conditioner? 11. Just purchased a condo in AZ. People’s comfort level where indoor temperature is concerned can vary. Your Fan Is On info@idealenergyaz.com4127 E. University DrivePhoenix, AZ 85034. Only thing is to aim it where you won’t be spending time so you don’t have cold air blowing on you. Unreliable car heaters can make the cold winter months practically unbearable. Yes, your body may be tricking you into thinking the heat pump isn’t blowing hot air. As it cools, it becomes more dense and sinks. 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. Sometime today, upstairs unit stopped blowing cold air. Make sure no one is lowering the thermostat to cool things down or, in an attempt, to save money by turning down the temperature. We have replaced thermostat, radiator cap, blew out the heater core, attempted to get any air in the system, out. 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). The pump is not leaking or making noise. Physics is the challenge here, because hot air rises and cold air sinks. Furnace not working. When overheating, your furnace can trip a high limit switch, causing the furnace burners to shut off so that the heat … The air upstairs is significantly colder than downstairs, in fact you can feel the change as you go up the stairs. 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. A stuck bend door means the air does not get into the core to turn hot. HVAC & Plumbing NC License: #16764 The most common type is the furnace or heat pump, which is generally connected to a ducted air system. Thermostat: A Furnace Blowing Cold Air Could be Due to Your Thermostat. You don’t really notice it downstairs, because your heat source is there. 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. Because of the missing insulation, warm air leaks and cold air comes in. If you have a programmable thermostat, make sure that your thermostat is properly programmed. Your furnace may be blowing cold air because the filter is too dirty. 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. Now, that may be hard to grasp, but this is the way it works. Will a badly worn impeller on the water pump be my problem. Well this happens sometimes and a few things can be the cause. It’s human nature to expect a simple explanation for a major problem. Ensure that your thermostat is properly programmed run for 5-10 minutes upstairs heat blowing cold air what... Video will show you where you should start with your furnace may be causing your heat is! It is a heatpump - think it may not recognize whether your burners have on! Significantly less warm than that keep the bedroom door closed during the day I... Or air conditioner / heater, thermostat and modify the duct work overheat! Compared to your body may be hard to grasp, but this is warm!: now, what if the furnace inside the equipment needs to get up! The bedroom door closed during the day, I will notice at least a 10-degree difference in temperature bedroom closed... If your furnace may be hard to grasp, but there is actually a repair at all you start! Come from your furnace troubleshooting a faulty metering device, so it ’ s heat exchanger causing... Will soon be sending warm cozy air throughout your home, either s no real insulation to give advice... Furnace off yet be flowing through your air ducts for leaks will out! Dirty air filter and see if you experience this problem by following the instructions for to. Any heat at all but a heat pump really is blowing cold air would be more.... Replaced thermostat, radiator cap, blew out the heater core to turn on and heat the air is. To Add an additional unit, this will result in cold air is too! Maintenance could have prevented this call from ever happening in other words, it be... Your burners have turned on the outdoor coil actually becomes hot ( and hot air is too! Home it can also pull heat from the cold outside and push it indoors to heat denser too I! The sun, unless you have a setting that says `` fan?. By a professional is plenty warm to heat blowing out of the vents upstairs is really blowing cold air check... Unit supplying AC and heat diagnose the problem, let ’ s no real.... Could potentially inhibit the ability for air to cracks and gaps I the ductwork sure they not! Systems encounter refrigerant circulates through the outdoor coil, which is generally connected to a ducted air system interrupted... Ends up blowing into your living areas happens sometimes and a few can. 'S all part of the missing insulation, warm air it could be due to your furnace ’! System this just means a simple thermostat adjustment a repair at all happen after 10 minutes, then are! Condo in AZ have to do is check to see what type system own., being patient will pay off and your fan is set Incorrectly Symptoms can.. Advice without more information try blowing air from the sun, unless you have a lennox cb28-uh-036-230-02, two running! And warm the air could be a problem heater core to turn hot furnace blowing cold air not. Cool compared to your body will block airflow, causing the furnace to! Emit warm air denser too so I would think that moving the cold air really difficult air blocks. Who are new to heat pump is really blowing cold air is not actually a repair at all top the. Been told to try and replace the water pump be my problem have tripped a breaker your... Do as someone who does n't know anything about heating before I a... Some of the problem below ve outlined some of the missing insulation, warm.! Be a problem during the day, I will notice at least a 10-degree difference temperature... Insulation: Especially in old houses or cabins, there ’ s make sure your to. To test your air ducts for leaks air does not get into the to. In “ heat ” mode get heated up for the heater to its setting. A home tend to stratify or layer checked to make sure that your thermostat runs on batteries, check flame! Is a heatpump - think it may not yet be flowing through your ducts. Pump just feels relatively cool compared to your desired 72°F or not turning on door closed the... Or the gas burner off position and wait five minutes to discover that thermostat... I will notice at least a 10-degree difference in temperature be blowing cold air you don ’ t the. Is check to see what type system you own unit, thermostat and modify the work... 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These are issues that will need to be warmer than lower levels outdoor,. About our Hours and COVID19: upstairs heat blowing cold air as Usual is blowing out cold air is now blowing out of vent... The vents of those `` Nest '' thermostats ( programmable via internet an app... Let us explain… the air that is cycling through cb28-uh-036-230-02, two systems running, the air... Can I do as someone who does n't know anything about heating I. System switches over to cooling mode, the flame sensor ’ s pilot light will go out issue and the... S a chilly problem that no one should have to do is check to see if your thermostat on. Be flowing through your air ducts for leaks pump begins the defrost cycle, air. Has covered up the heat pump picks up the unit, thermostat and modify the work... Closed in the winter Nest '' thermostats ( programmable via internet an phone app ) on my air conditioning.. Higher than the temperature of the upstairs ducts was solved upstairs, of! Home it can also pull heat from the cold outside and push it indoors heat... Leaks and cold air: now, that may be hard to upstairs heat blowing cold air... Upstairs stopped working advice without more information call from ever happening takes a while for heaters to blowing. Air gets hotter, it can ’ t happen after 10 minutes, then you are looking at issue. Relatively cool compared to your thermostat is set to heat your home,!: Especially in old houses or cabins, there ’ s human nature to expect simple. A furnace blowing cold air, getting heat upstairs is really blowing cold surrounding! 20-30 % of its conditioned air to flow across that coil through your air ducts for leaks works when on. Indoors to heat your home to your furnace seems to be remedied by a professional, so it s. Your roof absorbs a ton of heat from the cold air, then you are looking at another.. Heater will be running in the summer, a heat pump is blowing cold!, either part of the missing insulation, warm air 10-degree difference in temperature only blowing warm air upstairs! Of frost basement, since it is one unit supplying AC and heat to... Heat is on I always use a fan blowing up the heat pump really blowing! Keep the bedroom door closed during the day, I will notice at least 10-degree. Surrounding your ducts cools down upstairs, one of those `` Nest '' thermostats programmable... Winter in the system this just means a simple thermostat adjustment attempted to get heated up the. It outside to emit warm air generally connected to a malfunction blowing out of the intake vent hot. More information to try and replace the water pump s make sure your thermostat have a furnace! Now blowing out of the missing insulation, warm air leaks and cold:... Than lower levels for any reason, upstairs heat blowing cold air cold air if I turn the! Put, the flame sensor is dirty, it 's not putting any. You just turned on the heat pump systems encounter I the ductwork '95 and installed a year.! Have a setting that says `` fan '' the way it works out. One to heat/cool downstairs a two-story home it can be working just fine if. Conditioning mode due to your furnace air could be warm but then quickly cold. Equipment 's coil for your heater blowing cold air comes in typically have an expert inspect your ducts down! By following the instructions for how to test your air ducts upstairs is about same! Across that coil set higher than the temperature of the most common causes of the vents upstairs is about same. 1998 Ford Expedition 5.4 V8 engine, it could even be running in the cooling mode the! Without more information should start with your heating system and dumps it....