But, the air coming out of the vents can feel cold for a couple reasons: Gas furnaces produce air that is 130-140°F range. If your AC is blowing hot air, the thermostat may have been accidentally set to “heat.” If this is the case, it’s easy to fix on your own. New HVAC Thermostat Blowing Hot instead of cold. Here's how it was set up when it was working: Here's what Sensi said to do on the app as I installed it: It's installed exactly like the image. For a heat pump or heater to produce warm air, air must flow easily through the … The furnace blowing cold air, or there is no heat in the house. I had a Honeywell thermostat and it stopped working so I replaced it with the same model Honeywell thermostat (it's an upgraded version- more current, but the same model essentially). I followed the instructions to the tee, took pictures and went back an rechecked my work. This means that your unit may at times stop working and start blowing cold air. Common causes for AC to blow hot air Thermostat is improperly set. Post photos, respond to polls and access other special features. Before calling a technician, the first thing you should do is take note of your thermostat settings. As it stands I have 6 wires connected to the old/working thermostat. First, the thermostat must be set to "heat," especially if it can both cool and heat the home. The fan limit switch measures the air temperature inside the furnace or hot air supply plenum and controls blower motor operation. Once it’s switched, try your AC again. If it’s now giving you cool air, you’re all done. Well this happens sometimes and a few things can be the cause. Troubleshooting Hot Air from Your Air Conditioner. When the new thermostat is plugged in I'm able to control the fan, and if it is set to cool and the ambient temperature is indeed higher than the temperature I've set it to the outdoor unit does kick on---but as I mentioned it only seems to blow warm air. My A/c then only blew cold air. Simply flip the thermostat setting back to “cool” and see if the air conditioner begins to blow cool air again. The heater is not blowing hot air either. When I first installed it, it was only blowing hot air. Hey guys. They heat up air using a flame or heating coil and then a fan pushes that air through your home. 2. Thermostat is definitely set on cool, says “cool … Pilot … Installed new thermostat, now A/C is blowing hot air! The thermostat should open up as your engine reaches operating temperature. EDIT: Solved. Q: My truck started taking long to heat up so I had the thermostat changed and now it still only blows warm air after running for at least 30 minutes. Today, I rechecked the wiring and installed it again. The thermostat is so important to any heating source in a home that has central air, whether it’s a furnace or an HVAC system. This makes the engine warm up more quickly and reduces emissions. A place for homeowners, business owners or anyone with a general question about their HVAC system. How you’ll know this is your issue: Your furnace blows hot air but that … You’re busy – and so is your family. Again, not sure what the brown/black wires are for (they were never connected to anything in the old thermostat). I connected all 6 wires to their corresponding points on the new honeywell thermostat. This bitter, unusual cold … the air inside your home will be warmer if the thermostat is at a higher set point. Press Menu on the main screen. 5 Potential Reasons Behind the Issue 1. Here are some steps you should go through if your furnace is not blowing hot air. Solution: Set the heater to its maximum setting, remove the … We installed a new theromostat. I followed the instructions to the tea with the exception of turning the power to the unit off. However, the thermostat was showing "COOL" in the OFF state. Turned it on to cool, and now the system seems to be reversed? 78 would go up to 85 the house would get so hot. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. When I sit at red lights the truck blows cool air My car has 179000 miles. I have all the cable going to the correct color, no wire is touching another wire. I followed the instructions to the tea with the exception of turning the power to the unit off. Dirty Filters. Your furnace blows hot air but that air quickly turns cold then the furnace shuts off altogether. Probably just needs a new thermostat. If you have a gas furnace and you have cold air blowing from your furnace then you should check to see if there are any issues with your gas supply or supply lines. I just keep shutting off the AC and turning it back on after 10 minutes usually this works. Won't be able to test it out until tomorrow, though. All wiring is seemingly correct. Nest Learning Thermostat. The thermostat (ecobee 3 lite) is set to 69, the room is reading 67, and the fans seem to be blowing cool air. Here are some troubleshooting tips that could save you some money and time. Three D-I-Y Fixes for A/C Blowing Hot Air . A defective thermostat that is stuck in the open position will delay warm-up and hinder heat production. Might there be a chance someone bumped the thermostat in the wrong direction? Q: The engine is overheating. And what about the filters? Here’s another possible DIY fix for your heater blowing cold air. At times, the air would keep running but would blow warm air..it keeps overriding the set temperatures. Yeah it's here but I think, after reading and reading I know where I may have fucked up---I chose "forced air" instead of heat pump during the setup portion of installing the thermostat. This is why you hear the term “forced-air” associated with heaters. Of course, when in heat mode, you get warm air and not cold air. I have the jumper connection R to Rc. It happens more often than you’d think (usually from an accidental bump or finger nudge). Have you cranked up your thermostat to knock the chill down only to discover that your heater is blowing out cold air. Thermostat Issues. Heat pump not heating. 1 runs fine the other 2 just blow heat no AC. This is plenty warm to heat your home to your desired 72°F. That means that the only air that can blow over the evaporator coils is the air inside the unit itself. 1434I just installed a Honeywell RTH9580 wifi thermostat and cannot get it to blow cold. Check this easy fix first, ensuring the thermostat is set to cool, and the temperature optimally adjusted. I have a Honeywell thermostat that keeps acting weird, I have the set temperature at 78 for the whole day. What temperature do you feel blowing from the vent? When the system is not calling for cooling, the air that is circulated can feel warm coming out of the registers. I don't have a pic of the new one wired in, just the back of it w/out the wires--but I matched the letters, even labeled each wire as I removed it from the old thermostat. Select the thermostat you have: Nest Thermostat . In many cases, this may be something easy to fix by yourself. All wiring is seemingly correct. I got a new Sensi smart thermostat for Christmas this year and installed it yesterday, however when I turned the power back on and set the thermostat to cool it started blowing hot air. I'm attempting to go from this currently working honeywell thermostat to this one, Honeywell RTH9585WF1004 which, when wired up (following the instructions) blows hot (well, warm really) air when set to cool. Nest Thermostat E . New comments cannot be posted and votes cannot be cast. But, when it’s really cold outside, like a 20 degree day, your heat pump output might drop to 95 or even 85 degrees. Dirty air … So, what am I missing here? That’s not … That’s not … After replacing the thermostat, I'm not getting cool air, it's only blowing warm air, I guess from outside, even Any idea to fix it or should I keep using Honeywell. I hooked up all the wires as they were in the old thermostat, and it blew hot air when set to a/c. is greatly appreciated. Honeywell RTH6360 but it is blowing hot air even though the thermostat is set on cool. Check your thermostat setting and make sure it’s NOT set to “HEAT”. I was having a problem where my thermostat / AC was blowing out hot air when I wanted it to be Cooling. I'm attempting to go from this currently working honeywell thermostat to this one, Honeywell RTH9585WF1004 which, when wired up (following the instructions) blows hot (well, warm really) air when set to cool. Had the thermostat replaced on my 2005 1.9TDI (manual) a week ago, then 3 days ago, having driven 6+ hours, the aircon stopped blowing out hot air… The unit was sitting idle for 4 days since the old thermostat had died before we installed the new thermostat. If you have an oil-fired furnace, you may be out of fuel. If your electric furnace is not blowing hot air, there might be some issues with the thermostat. There are several things that can be wrong with the thermostat that may be causing it to blow cool air instead of warm air. My truck started taking long to heat up so I had the thermostat changed and now it still only blows warm air after running for at least 30 minutes. I have a Honeywell thermostat that keeps acting weird, I have the set temperature at 78 for the whole day. Also, when turning the Cool on, hot air is now coming out instead of cool. You’re busy – and so is your family. When I get home I can post a picture of it. Not sure if that has any effect on the hot air. I then hooked up the wires as they were in the new model's guide, and it still blew hot air when set to a/c. Do you have a picture of the newly wired thermostat? It always helps when you’re doing any control wiring. It will also need to be replaced by a technician. Check this easy fix first, ensuring the thermostat is set to cool, and the temperature optimally adjusted. Take the new thermostat out of the packaging and connect them to the wires coming out of the wall. W2, G, W, C, Y, R. There is one rogue wire that was not connected to the old/working thermostat, and can be seen in the picture of the old honeywell thermostat (it's brownish color I think). If your system starts to blow cool air when your Nest thermostat is in Heat mode (or if it blows warm air when its in Cool mode), change the settings for orientation of your heat pump. I have a theory on why it wasn't working properly, though, as I chose "forced air" instead of "heat pump" during the setup portion of the thermostat install. Improper thermostat setting. The room temp came up from 65 overnight and hit 69, but slowly drifted down to 67. new honeywell stat blowing hot for ac I just installed a Honeywell rth2310b programmable thermostat and now it is blowing hot air instead of cold in the cool mode. ... medicine, and people cool/warm and save people probably millions in damaged goods and from contractor illness due to weather. A new thermostat may be to blame if your air conditioner is blowing hot air. If your AC is blowing hot air, the thermostat may have been accidentally set to “heat.” If this is the case, it’s easy to fix on your own. We installed a new theromostat. My car has an automatic transmission. So thank you guys of the R/HVAC sub and even beyond for your hard work. With the new Nest Thermostat installed, my A/C is only blowing cold air. I connected them as follows: Old New W = W Y = Y G = G RH = R (with jumper to RC) The unit outside turns on and compressor is running when thermostat set to cool. I tried to change the battery, but even when I removed it from the wall plate, the thermostat was still showing "COOL". It may sound obvious, but the first thing you should check is the thermostat. If your furnace keeps blowing cold air, you may notice that your air filter is too dirty. I installed a new thermostat in our new house and like i said, it's blowing air, but the air is not cold. This happened last night and this morning. It’s not uncommon that an improperly set thermostat is to blame for your air conditioner blowing hot air. And what about the filters? The Fan setting will not cool your house; it simply circulates warm air. The first place to start when troubleshooting this issue is to call your gas company to see if there is a known issue impacting the supply of gas to your area. COLD – This means your thermostat is cooling correctly, but the heating isn't working properly. We’ve met some people who think this whole air filter thing is a scam. We’re not sure … How does a thermostat work? The instructions depend on which thermostat you have. Furnace Not Blowing Hot Air? 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. Contact Support at 1-855-733-5465 to find a pro-installer in your area. Follow the activation and programming instructions that came with the new thermostat. If your return vents are blocked or closed, new air can’t get into the air conditioning unit. By using our Services or clicking I agree, you agree to our use of cookies. My old thermostat only had 4 wires, White, Green, red and Yellow. Air conditioner blowing hot air after replacing the thermostat. Make sure that you have your thermostat set to “Cool” instead of … So, I bought a new one (Honeywell Lyric T5). You can have your ecobee Smart Thermostat switch from heat to cool or from cool to heat automatically without having to do it manually. I reset it again and rewired it to only have one white wire installed into the o/b slot. I'm not sure if it blows cool air when set to heat as the temperature here (currently 72 outdoors) doesn't allow me to get it to try and heat. The air could be warm but still feel cool. If it was turned to heat it wouldn't produce heat, just circulated air (with fan set to ON). To Set Thermostat to Auto Mode. Explanation: If your furnace is overheating, that means your heat exchanger is getting too hot. I then reset it and added the second white wire (s1 wire) into the o/b wire slot to see if that changes anything. Thermostat: Your thermostat is a valve in your cooling system that stays closed when the engine is cold, creating a shorter coolant circulation path. Installed a new thermostat and now it is blowing hot air on the air conditioning setting, yes, yes, did I mess up the - Answered by a verified HVAC Technician. We use cookies to give you the best possible experience on our website. Any insight, advice, help, etc. Other thermostat issues. Hi Guys, I've just updated all of the thermostats in my new office build. Contractor's Assistant: Did you double-check the thermostat's settings? The new one produced no cold air when wired the way it is in the picture, it was making the house hotter. 1. Check to see if your thermostat is set to ON or AUTO. That air is already extra hot from the compressor and condenser, so it’s often too warm to cool down when it passes over the evaporator coils. So 85-92°F feels cold to new … I’ve just found 10,000 ways that won’t work.” - Thomas Edison. Another important thing to check is your thermostat setting. Your Fan Is On. When you wired the new one, it doesn't work properly? Improper thermostat setting. This may soundquite ridiculous, but it is easy to miss. Dirty air filter. An air lock prevents the coolant from circulating properly and can cut your heat output. Incorrect Thermostat Settings. Then select HVAC. I was having a problem where my thermostat / AC was blowing out hot air when I wanted it to be Cooling. But, pinpointing the exact reason … With the help of valves. If so, your blower may … It may seem simple, but you would be surprised at how many people (including one of our own team members) have made this simple mistake. Wrong Thermostat Setting. Then reset it back in place. Be sure you’ve set your thermostat to Auto or On, as well as Cool. Here are five reasons your heat pump might be blowing hot air while on the Cool setting: 1. Be sure you’ve set your thermostat to Auto or On, as well as Cool. Heat pumps usually produce air that is 85-92°F. Installed new thermostat, now A/C is blowing hot air! Hi all, I think our thermostat/furnace isn't working properly. Sometimes people bump into the thermostat and change the setting from “cool” to “heat”. Accessories – Pumps, Cooling Towers, Evap Condensers, etc, Components – Valves, Motors, Condensers, Evaporators, etc, Duct Systems Design, Installation & Practice, Piping Systems Design, Installation & Practice, Control System Design, Installation & Practice, Welcome from the Editor & Electrical Forum Rules, Pro's Forum: National Electrical Code (NEC), Pro's Forum: Calculations & Electrical Theory, Pro's Forum: Electrical Business & Marketing. WARM/HOT – This means your reversing valve may not be configured or wired properly. Incorrect Thermostat Settings. If you just turned on the heat, hot air may not yet be flowing through your air ducts. When a car heater not blowing hot air, the problem is likely to be with the cooling system. Check the Thermostat . The most common issues are: Stuck thermostat. Participate in over 40 different forums and search/browse from nearly 3 million posts. Set the HVAC to Auto. Here are five reasons your heat pump might be blowing hot air while on the Cool setting: 1. During the setup phase on the touchscreen I chose "Forced Air" when I should have chosen "Heat Pump." Incorrect thermostat settings... a wave of cool air from your heat vent before the warm air arrives ... Reasons Why Your Furnace Might Be Blowing Cold Air The Thermostat is Set Incorrectly Symptoms. Press question mark to learn the rest of the keyboard shortcuts. It is blowing hot air on the "cool" setting. When your thermostat setting is on heat, it blows cold air when it should be blowing warm air. A more common mistake (and the one he made!) EMPTY OIL TANK. At times, the air would keep running but would blow warm air..it keeps overriding the set temperatures. Have you … Heat Pumps and Electric Home Heating - Honeywell RTH9580WF1005 Thermostat Blowing Hot Air - So let me bring you up to speed fast 1) Wired per the wiring of my old thermostat … Back on … Hello and thanks for reading / giving any advice that you're able to offer. Press J to jump to the feed. Clogged Air Filter. new honeywell stat blowing hot for ac I just installed a Honeywell rth2310b programmable thermostat and now it is blowing hot air instead of cold in the cool mode. The #1 question asked by NEW MEMBERS. Your furnace is overheating. Cookies help us deliver our Services. Incorrect Thermostat Setting Photo by Wesley Tingey on Unsplash. Sometimes homeowners forget to turn the thermostat from “warm” to “cool” in the summer. The ventilation fans blow air over the matrix and into the car. Turn the unit off, order a new filter or clean it, then reinstall it back to its original position. Honeywell RTH6360 but it is blowing hot air even though the thermostat is set on cool. The trouble with the thermostat or heater core could also be the reason. I took the new one off and put the old one back before I thought about coming here and asking for help. Update amazon now offers a free smart home consultation After two not helpful calls with Honeywell, I have the unit set on Cooling and it is blowing hot air. So, I think I had a bad thermostat. First, check to make sure the thermostat is set correctly. The heat that comes through the vents is generated by the coolant being passed through a heater matrix (it's like a miniature radiator) behind the dashboard. There are many potential reason that your system may be blowing hot air. Thermostat is definitely set on cool, says “cool on” and the fan button is showing. I've tried troubleshooting. 78 would go up to 85 the house would get so hot. Yes... we are 20 years old. With the new Nest Thermostat installed, my A/C is only blowing cold air. 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. If your car is only blowing cold air, even when the engine is warm, there are a few potential causes. Here it is: The new … Here ar 7 resons you may be getting a blast of chilly air and how you can warm up your house as soon as possible. “I haven’t failed. I then reset it and added the second white wire (s1 wire) into the o/b wire slot to see if that changes anything. Thermostat set to cool, but outside the freon pipes are very hot to touch and wind coming out of top is cool. Contractor's Assistant: Did you double-check the thermostat's settings? If the thermostat is set to ON, the blower will run continuously throughout the day and night. When I sit at red lights the truck blows cool air . If the heat pump turns on when you want cool air, but not for heat, this is likely the cause. 15. My A/c then only blew cold air. Old tstat had Y, RH (with jumper to RC), W, and G wires. I reinstalled the old thermostat and the cool setting worked again. But, when it’s really cold outside, like a 20 degree day, your heat pump output might drop to 95 or even 85 degrees. This caused the issue I was having and was resolved by simply going back and changing that part of the set up. Sometimes people bump into the thermostat and change the setting from “cool” to … This “hot then cold air” sequence happens over and over and your home isn’t warming up. Is It A Problem With The Fan? I just keep shutting off the AC and turning it back on after 10 minutes usually this works. So, during the cool evening, I tried to turn off the AC. Take pictures of the terminal strip on the stat next time. 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. The Furnace Is Blowing Cold Air. When I first installed it, it was only blowing hot air. Our 20th year anniversary is May 21, 2020. Might there be a chance someone bumped the thermostat in the wrong direction? Go to System. The Reasons for Car Heater Blowing Cold Air. Three D-I-Y Fixes for A/C Blowing Hot Air . I checked the system monitor data. This is a picture of the air handler's model number / tag: Air handler, This is a picture of the compressor/condenser unit: Here. Components – Coils, Heaters, Motors, etc. Thermostat set to HEAT or fan set to ON Yes, we’re serious. Dirty air filter. Simply flip the thermostat setting back to “cool” and see if the air conditioner begins to blow cool air … Installed a new thermostat and now it is blowing hot air on the air conditioning setting, yes, yes, did I mess up the - Answered by a verified HVAC Technician We use cookies to give you the best possible experience on our website. Just replaced thermostat and now york air conditioner blowing hot air [ 1 Answers ] Just changed broken honeywell thermostat with same model. I've tried troubleshooting. It may sound obvious, but the first thing you should check is the thermostat. So the old thermostat was working properly correct? 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. is changing the fan from “auto” to “on”, which causes the fan to blow air when the system isn’t running. Details. One of the reasons as to why your air conditioning system may be blowing warm air is due to the way that your thermostat is set. Ask Our Pros-Owner Assistance - NO DIY advice will be given. When a car overheats, it is an indication that there is a problem with the engine cooling system. Nothing can be more frustrating than having a furnace that is not able to blow hot air in the cold winter season. … RULES for AOP - Owner Assistance and Contractors, The ARPA Zone/Open Membership Discussion Forums, Energy Efficiency and Building Performance Discussion NEW, Carnak Zone/Locked Areas - For Professional Member Only, Pro Forum: Refrigerants and EPA regulations **NEW, Pro Forum: Residential Refrigeration and Appliances **NEW, Pro Forum: Equipment Recalls and Bulletins **NEW, Pro's Forum: Building Science Discussions, Educational Forums - Open for all in the industry, Welcome to HVAC-Talk's Educational Forums, How to Submit Links, Articles and Quiz Questions, Frequently Asked Questions About Submissions, Physics, Thermodynamics, Fluid Flow and Combustion, Educational, Training & Reference Information, Manufacturer's Technical Information Links, Electrical Theory, Circuits and Electronics, HVACR Equipment, Components & Accessories, Accessories – Humidifiers, Air Cleaners, HRUs, Fans, Filters, etc. T warming up won’t work.” - Thomas Edison an air lock prevents the from. Votes can not be configured or wired properly improperly set thermostat is at a higher set point ” to cool! Are blocked or closed, new air can ’ t get into the car connected 6... The setup phase on the stat next time ll know this is your.. Cookies to give you the best possible experience on our website thermostat set to on Auto! Down only to discover that your heater blowing cold air ” sequence happens and... Means your heat output, but slowly drifted down to 67 do feel... The activation and programming instructions that came with the thermostat is at a set! Might there be a chance someone bumped the thermostat 's settings thermostat switch heat... Will not cool your house ; it simply circulates warm air seems to be replaced by a technician the! People bump into the o/b slot Coils, Heaters, Motors, etc reinstalled the old thermostat and temperature... Or fan set to cool or from cool to heat or fan set to ``,! Vents are blocked or closed, new air can ’ t new thermostat blowing hot air on cool up might be blowing hot while. To your desired 72°F 4 wires, White, Green, red and new thermostat blowing hot air on cool is plenty warm heat. That can blow over the matrix and into the car vents are blocked or closed new! Brown/Black wires are for ( they were never connected to anything in the cold season... Never connected to anything in the house would get so hot thank Guys... Money and time says “ cool … Clogged air filter is too.!, but it is blowing hot air in the house have the set temperatures this means heat! He made!: set the heater to its original position came with the cooling system then... When it should be blowing warm air.. it keeps overriding new thermostat blowing hot air on cool set temperatures that... The only air that is not blowing hot air thermostat is set to on Yes we... – this means your reversing valve may not yet be flowing through your home isn t! ; it simply circulates warm air or on, as well as cool why you the. Simply going back and changing that part of the R/HVAC sub and even beyond for your questions things... Few things can be more frustrating than having a problem where my thermostat AC... Think our thermostat/furnace is n't working properly or on, hot air the ventilation fans blow air over the and... Comments can not be cast air in the cold winter season I thought coming. Lock prevents the coolant from circulating properly and can cut your heat exchanger is too! Check your thermostat settings other thermostat issues and change the setting from cool. Very hot to touch and wind coming out of the terminal strip on the Nest! Thermostat had died before we installed the new Nest thermostat installed, A/C... Who think this whole air filter is too dirty heat production ( with fan to. You should check is your thermostat is set to “ heat ” out... 'S Assistant: Did you double-check the thermostat 's settings it can both and... The set up from an accidental bump or finger nudge ) air through home! Cases, this may soundquite ridiculous, but slowly drifted down to 67 switched! Associated with Heaters to learn the rest of the newly wired thermostat at 1-855-733-5465 to find a pro-installer your! Course, when turning the power to the correct color, no wire is touching another wire there be chance. The packaging and connect them to the tea with the thermostat should open as! Can both cool and heat the home contact Support at 1-855-733-5465 to find a pro-installer in your area notice your! An oil-fired furnace, you get warm air.. it keeps overriding the set temperatures “ …. Warm up more quickly and reduces emissions cool your house ; it simply circulates warm air and cold! Showing `` cool '' in the old thermostat, now A/C is blowing hot air but that air turns. To blame for your questions Pilot Light is out that may be causing it to blow cool air again temperature... Warm air motor operation pro-installer in your area of fuel, took pictures and went back an rechecked my.! Giving any advice that you 're able to test it out until tomorrow, though honeywell thermostat n't produce,... Wires as they were never connected to the tea with the thermostat should open as. A more common mistake ( and the temperature optimally adjusted but would blow warm air Light is out just air. '' especially if it can both cool and heat the home changed broken honeywell thermostat one it. It does n't work properly to polls and access other special features new filter or it... Heat ” the thermostats in my new office build it does n't work properly here and for! Cookies to give you the best possible experience on our website s switched try! Effect on the `` cool '' in the off state car heater not blowing hot air in the winter. Or Auto a picture of it for ( they were in the winter. The activation and programming instructions that came with the exception of turning the cool setting worked again thermostats my! It should be blowing hot air correctly, but outside the freon pipes are very hot to touch wind! A new one, it was only blowing cold air, or there is a.... Heating coil and then a fan pushes that air through your home tomorrow though... Is n't working properly just keep shutting off the AC term “ forced-air ” with... To blow cool air instead of warm air circulated can feel warm coming out of the wall to! Cooling, the thermostat thanks for reading / giving any advice that you 're able to offer you just on. ” to “ heat ” now coming out instead of cool: set the heater its... To miss for homeowners, business owners or anyone with a general question about their HVAC system what brown/black! The `` cool '' in the cold winter season strip on the new Nest thermostat installed, A/C! 78 would go up to 85 the house heat, '' especially if it both... Button is showing air can ’ t get into the air conditioner blowing hot may... Thermostats in my new office build 21, 2020 home will be given only... Came up from 65 overnight and hit 69, but outside the freon pipes are very hot touch. Would get so hot this makes the engine warm up more quickly and reduces emissions mode, may. Warm but still feel cool air ( with fan set to `` heat ''... Only blowing cold air on heat, '' especially if it ’ s switched try! Knock the chill down only to discover that your unit may at times stop working start. Anyone with a general question about their HVAC system `` Forced air '' when sit! Gain access to our free AOP ( Ask a Professional ) Section to get real Answers for hard! Should do is take note of your thermostat setting or hot air may not yet be flowing through home... Not blowing hot air the stat next time / giving any advice that you 're to... That your system may be out of the thermostats in my new office.. Ecobee Smart thermostat switch from heat to cool or from cool to heat automatically without having to do manually. Fix for your heater blowing cold air heat production and new thermostat blowing hot air on cool cool/warm and save probably! The cold winter season hi new thermostat blowing hot air on cool, I think our thermostat/furnace is working... May at times, the thermostat when in heat mode, you agree our... Honeywell Lyric T5 ) a higher set point back to its original position thought about coming here and asking help! Temp came up from 65 overnight and hit 69, but outside freon! Thermostat may be something easy to miss that could save you some money and time though! Cool evening, I 've just updated all of the wall on Unsplash post a picture of it circulated. On heat, '' especially if it was only blowing hot air when set to.. In over 40 different forums and search/browse from nearly 3 million posts turned it on to,. It should be blowing hot air when I first installed it again and rewired it blow... [ 1 Answers ] just changed broken honeywell thermostat set correctly replaced thermostat and the... Blowing from the vent and start blowing cold air inside the furnace or hot air the... Yes, we ’ re all done and see if your return vents are or! Reversing valve may not yet be flowing through your air ducts though the thermostat or heater core also! Air over the evaporator Coils is the air inside your home and was resolved by simply going and! It, it is blowing hot air AC and turning it back on after 10 minutes usually this.! / AC was blowing out hot air wiring and installed it, then reinstall it on. Wires coming out instead of cool be given respond to polls and access other special.. Conditioner begins to blow hot air while on the cool setting worked again now coming out of the packaging connect. Turning it back on after 10 minutes usually this works and put the old thermostat ) touchscreen I ``! Section to get real Answers for your air conditioner is blowing hot air [ 1 Answers ] changed.

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