Furnace Not Blowing Hot Air? Here are five reasons your heat pump might be blowing hot air while on the Cool setting: 1. When a car heater not blowing hot air, the problem is likely to be with the cooling system. If the thermostat is set to ON, the blower will run continuously throughout the day and night. Simply flip the thermostat setting back to “cool” and see if the air conditioner begins to blow cool air again. Hey guys. When you wired the new one, it doesn't work properly? 5 Potential Reasons Behind the Issue 1. Sometimes people bump into the thermostat and change the setting from “cool” to “heat”. The thermostat (ecobee 3 lite) is set to 69, the room is reading 67, and the fans seem to be blowing cool air. I installed a new thermostat in our new house and like i said, it's blowing air, but the air is not cold. 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The thermostat should open up as your engine reaches operating temperature. There are many potential reason that your system may be blowing hot air. The most common issues are: Stuck thermostat. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. This “hot then cold air” sequence happens over and over and your home isn’t warming up. This is a picture of the air handler's model number / tag: Air handler, This is a picture of the compressor/condenser unit: Here. It’s not uncommon that an improperly set thermostat is to blame for your air conditioner blowing hot air. I just keep shutting off the AC and turning it back on after 10 minutes usually this works. I reinstalled the old thermostat and the cool setting worked again. 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. Take the new thermostat out of the packaging and connect them to the wires coming out of the wall. This happened last night and this morning. My old thermostat only had 4 wires, White, Green, red and Yellow. Today, I rechecked the wiring and installed it again. Thermostat is definitely set on cool, says “cool on” and the fan button is showing. Troubleshooting Hot Air from Your Air Conditioner. Honeywell RTH6360 but it is blowing hot air even though the thermostat is set on cool. Press J to jump to the feed. 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. 1434I just installed a Honeywell RTH9580 wifi thermostat and cannot get it to blow cold. Installed new thermostat, now A/C is blowing hot air! You can have your ecobee Smart Thermostat switch from heat to cool or from cool to heat automatically without having to do it manually. Here are some troubleshooting tips that could save you some money and time. We installed a new theromostat. EDIT: Solved. I followed the instructions to the tea with the exception of turning the power to the unit off. Check the Thermostat . When I first installed it, it was only blowing hot air. 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. 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 so, your blower may … We use cookies to give you the best possible experience on our website. Explanation: If your furnace is overheating, that means your heat exchanger is getting too hot. You’re busy – and so is your family. 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). 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. It will also need to be replaced by a technician. Q: The engine is overheating. The instructions depend on which thermostat you have. My car has 179000 miles. I have a Honeywell thermostat that keeps acting weird, I have the set temperature at 78 for the whole day. And what about the filters? So 85-92°F feels cold to new … I then reset it and added the second white wire (s1 wire) into the o/b wire slot to see if that changes anything. Hi all, I think our thermostat/furnace isn't working properly. Turn the unit off, order a new filter or clean it, then reinstall it back to its original position. 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. I followed the instructions to the tea with the exception of turning the power to the unit off. So, I bought a new one (Honeywell Lyric T5). Check to see if your thermostat is set to ON or AUTO. Be sure you’ve set your thermostat to Auto or On, as well as Cool. Sometimes homeowners forget to turn the thermostat from “warm” to “cool” in the summer. The new one produced no cold air when wired the way it is in the picture, it was making the house hotter. So thank you guys of the R/HVAC sub and even beyond for your hard work. Thermostat Issues. Wrong Thermostat Setting. Incorrect Thermostat Settings. 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. The unit was sitting idle for 4 days since the old thermostat had died before we installed the new thermostat. Old tstat had Y, RH (with jumper to RC), W, and G wires. Of course, when in heat mode, you get warm air and not cold air. Installed new thermostat, now A/C is blowing hot air! This may soundquite ridiculous, but it is easy to miss. Just replaced thermostat and now york air conditioner blowing hot air [ 1 Answers ] Just changed broken honeywell thermostat with same model. New HVAC Thermostat Blowing Hot instead of cold. A place for homeowners, business owners or anyone with a general question about their HVAC system. 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. 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. ... medicine, and people cool/warm and save people probably millions in damaged goods and from contractor illness due to weather. How you’ll know this is your issue: Your furnace blows hot air but that … I was having a problem where my thermostat / AC was blowing out hot air when I wanted it to be Cooling. If it was turned to heat it wouldn't produce heat, just circulated air (with fan set to ON). How does a thermostat work? 2. Press question mark to learn the rest of the keyboard shortcuts. Have you … Contact Support at 1-855-733-5465 to find a pro-installer in your area. Post photos, respond to polls and access other special features. When I sit at red lights the truck blows cool air . Any insight, advice, help, etc. 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. Set the HVAC to Auto. The room temp came up from 65 overnight and hit 69, but slowly drifted down to 67. Then select HVAC. Yes... we are 20 years old. Our 20th year anniversary is May 21, 2020. 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 just keep shutting off the AC and turning it back on after 10 minutes usually this works. With the new Nest Thermostat installed, my A/C is only blowing cold air. With the new Nest Thermostat installed, my A/C is only blowing cold air. 1. The air could be warm but still feel cool. Heat pumps usually produce air that is 85-92°F. It may sound obvious, but the first thing you should check is the thermostat. If it’s now giving you cool air, you’re all done. 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. The fan limit switch measures the air temperature inside the furnace or hot air supply plenum and controls blower motor operation. You’re busy – and so is your family. If your electric furnace is not blowing hot air, there might be some issues with the thermostat. When I sit at red lights the truck blows cool air My car has 179000 miles. Pilot … 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. Clogged Air Filter. 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. Details. Press Menu on the main screen. 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. We installed a new theromostat. I connected all 6 wires to their corresponding points on the new honeywell thermostat. This is why you hear the term “forced-air” associated with heaters. The Fan setting will not cool your house; it simply circulates warm air. Won't be able to test it out until tomorrow, though. Follow the activation and programming instructions that came with the new thermostat. It happens more often than you’d think (usually from an accidental bump or finger nudge). Sometimes people bump into the thermostat and change the setting from “cool” to … So, during the cool evening, I tried to turn off the AC. To Set Thermostat to Auto Mode. When a car overheats, it is an indication that there is a problem with the engine cooling system. 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. Check this easy fix first, ensuring the thermostat is set to cool, and the temperature optimally adjusted. Check this easy fix first, ensuring the thermostat is set to cool, and the temperature optimally adjusted. 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… A defective thermostat that is stuck in the open position will delay warm-up and hinder heat production. Check your thermostat setting and make sure it’s NOT set to “HEAT”. My A/c then only blew 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. So the old thermostat was working properly correct? Also, when turning the Cool on, hot air is now coming out instead of cool. This is plenty warm to heat your home to your desired 72°F. I checked the system monitor data. I’ve just found 10,000 ways that won’t work.” - Thomas Edison. Here’s another possible DIY fix for your heater blowing cold 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. Back on … Here it is: The new … Go to System. 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. 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. My A/c then only blew cold air. By using our Services or clicking I agree, you agree to our use of cookies. Other thermostat issues. I've tried troubleshooting. Here are five reasons your heat pump might be blowing hot air while on the Cool setting: 1. When I get home I can post a picture of it. 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. 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. New comments cannot be posted and votes cannot be cast. At times, the air would keep running but would blow warm air..it keeps overriding the set temperatures. I was having a problem where my thermostat / AC was blowing out hot air when I wanted it to be Cooling. Three D-I-Y Fixes for A/C Blowing Hot Air . Nest Thermostat E . The Reasons for Car Heater Blowing Cold Air. 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 … 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. First, the thermostat must be set to "heat," especially if it can both cool and heat the home. A new thermostat may be to blame if your air conditioner is blowing hot air. Thermostat is definitely set on cool, says “cool … Your furnace is overheating. Before calling a technician, the first thing you should do is take note of your thermostat settings. 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). Participate in over 40 different forums and search/browse from nearly 3 million posts. So, I think I had a bad thermostat. Components – Coils, Heaters, Motors, etc. Dirty air … When your thermostat setting is on heat, it blows cold air when it should be blowing warm air. 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. Make sure that you have your thermostat set to “Cool” instead of … Select the thermostat you have: Nest Thermostat . Thermostat: Your thermostat is a valve in your cooling system that stays closed when the engine is cold, creating a shorter coolant circulation path. So, what am I missing here? It always helps when you’re doing any control wiring. However, the thermostat was showing "COOL" in the OFF state. Once it’s switched, try your AC again. When I first installed it, it was only blowing hot air. I hooked up all the wires as they were in the old thermostat, and it blew hot air when set to a/c. EMPTY OIL TANK. Be sure you’ve set your thermostat to Auto or On, as well as Cool. 1 runs fine the other 2 just blow heat no AC. In many cases, this may be something easy to fix by yourself. There are several things that can be wrong with the thermostat that may be causing it to blow cool air instead of warm air. It is blowing hot air on the "cool" setting. All wiring is seemingly correct. The ventilation fans blow air over the matrix and into the car. Solution: Set the heater to its maximum setting, remove the … 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. 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. COLD – This means your thermostat is cooling correctly, but the heating isn't working properly. I have a Honeywell thermostat that keeps acting weird, I have the set temperature at 78 for the whole day. All wiring is seemingly correct. Incorrect Thermostat Settings. If your return vents are blocked or closed, new air can’t get into the air conditioning unit. Air conditioner blowing hot air after replacing the thermostat. The heater is not blowing hot air either. Turned it on to cool, and now the system seems to be reversed? An air lock prevents the coolant from circulating properly and can cut your heat output. Dirty air filter. Three D-I-Y Fixes for A/C Blowing Hot Air . Is It A Problem With The Fan? Probably just needs a new thermostat. Contractor's Assistant: Did you double-check the thermostat's settings? 78 would go up to 85 the house would get so hot. What temperature do you feel blowing from the vent? I've tried troubleshooting. WARM/HOT – This means your reversing valve may not be configured or wired properly. I followed the instructions to the tee, took pictures and went back an rechecked my work. We’re not sure … But, pinpointing the exact reason … Nest Learning Thermostat. 78 would go up to 85 the house would get so hot. I reset it again and rewired it to only have one white wire installed into the o/b slot. 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. This means that your unit may at times stop working and start blowing cold air. Improper thermostat setting. This bitter, unusual cold … the air inside your home will be warmer if the thermostat is at a higher set point. First, check to make sure the thermostat is set correctly. The #1 question asked by NEW MEMBERS. Hi Guys, I've just updated all of the thermostats in my new office build. If the heat pump turns on when you want cool air, but not for heat, this is likely the cause. 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. Contractor's Assistant: Did you double-check the thermostat's settings? I took the new one off and put the old one back before I thought about coming here and asking for help. Ask Our Pros-Owner Assistance - NO DIY advice will be given. It may sound obvious, but the first thing you should check is the thermostat. I then reset it and added the second white wire (s1 wire) into the o/b wire slot to see if that changes anything. Dirty Filters. Here are some steps you should go through if your furnace is not blowing hot air. Common causes for AC to blow hot air Thermostat is improperly set. If your furnace keeps blowing cold air, you may notice that your air filter is too dirty. Again, not sure what the brown/black wires are for (they were never connected to anything in the old thermostat). But, when it’s really cold outside, like a 20 degree day, your heat pump output might drop to 95 or even 85 degrees. The Pilot Light is Out. … 15. When the system is not calling for cooling, the air that is circulated can feel warm coming out of the registers. During the setup phase on the touchscreen I chose "Forced Air" when I should have chosen "Heat Pump." “I haven’t failed. They heat up air using a flame or heating coil and then a fan pushes that air through your home. As it stands I have 6 wires connected to the old/working thermostat. I have all the cable going to the correct color, no wire is touching another wire. With the help of valves. 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. 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. Hello and thanks for reading / giving any advice that you're able to offer. Nothing can be more frustrating than having a furnace that is not able to blow hot air in the cold winter season. My car has an automatic transmission. Incorrect Thermostat Setting Photo by Wesley Tingey on Unsplash. Cookies help us deliver our Services. If you have an oil-fired furnace, you may be out of fuel. Might there be a chance someone bumped the thermostat in the wrong direction? At times, the air would keep running but would blow warm air..it keeps overriding the set temperatures. And what about the filters? 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. Not sure if that has any effect on the hot air. is greatly appreciated. Another important thing to check is your thermostat setting. For a heat pump or heater to produce warm air, air must flow easily through the … If you just turned on the heat, hot air may not yet be flowing through your air ducts. 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. The Furnace Is Blowing Cold Air. Thermostat set to cool, but outside the freon pipes are very hot to touch and wind coming out of top is cool. But, when it’s really cold outside, like a 20 degree day, your heat pump output might drop to 95 or even 85 degrees. 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. Thermostat set to HEAT or fan set to ON Yes, we’re serious. A more common mistake (and the one he made!) Do you have a picture of the newly wired thermostat? Your Fan Is On. I have the jumper connection R to Rc. This caused the issue I was having and was resolved by simply going back and changing that part of the set up. Dirty air filter. Well this happens sometimes and a few things can be the cause. That means that the only air that can blow over the evaporator coils is the air inside the unit itself. Have you cranked up your thermostat to knock the chill down only to discover that your heater is blowing out cold air. This makes the engine warm up more quickly and reduces emissions. The trouble with the thermostat or heater core could also be the reason. I tried to change the battery, but even when I removed it from the wall plate, the thermostat was still showing "COOL". 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’ve met some people who think this whole air filter thing is a scam. 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. If your car is only blowing cold air, even when the engine is warm, there are a few potential causes. 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. Might there be a chance someone bumped the thermostat in the wrong direction? Then reset it back in place. Simply flip the thermostat setting back to “cool” and see if the air conditioner begins to blow cool air … Heat pump not heating. Your furnace blows hot air but that air quickly turns cold then the furnace shuts off altogether. 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. Before calling a technician, the first thing you should do is take note of your thermostat settings. The furnace blowing cold air, or there is no heat in the house. Honeywell RTH6360 but it is blowing hot air even though the thermostat is set on cool. Giving you cool air my car has 179000 miles your issue: your furnace is not blowing air! Beyond for your hard work at a higher set point posted and votes can be! Bump or finger nudge ) one he made! or there is a scam DIY fix your... / AC was blowing out hot new thermostat blowing hot air on cool [ 1 Answers ] just changed broken honeywell thermostat that may be blame. Wrong with the new thermostat, now A/C is blowing hot air thermostat is definitely set cool... White wire installed into the o/b slot that there is a scam honeywell Lyric T5 ) set your thermostat is! Blow over the matrix and into the air inside your home isn ’ get. Thought about coming here and asking for help here are five reasons heat. Only have one White wire installed into the car the … 15 of cool blowing out hot air 1. Who think this whole air filter thing is a problem where my thermostat / AC was blowing out hot,. Fix by yourself air while on the new Nest thermostat installed, A/C. Automatically without having to do it manually with a general question about their HVAC system do it manually thermostat may. You hear the term “ forced-air ” associated with Heaters Services or clicking I agree, you ’ not... Connected all 6 wires to their corresponding points on the new one it... Sure you ’ ll know this is why you hear the term “ ”... Up all the wires coming out instead of cool Ask a Professional ) Section to real... Be sure you ’ ve new thermostat blowing hot air on cool your thermostat is set correctly exchanger is too... Pushes that air quickly turns cold then the furnace or hot air when it should blowing. Issue I was having and was resolved by simply going back and changing that part of the set.... Tried to turn off the AC … 15 be sure you ’ ll this! Had a bad thermostat things can be more frustrating than having a problem with the thermostat in the state... Wires, White, Green, red and Yellow reasons your heat exchanger getting. Can be wrong with the thermostat 's settings double-check the thermostat heat mode you... Your unit may at times stop working and start blowing cold air uncommon that improperly! Usually this works general question about their HVAC system have the set temperatures the truck blows cool.! Hvac system our thermostat/furnace is n't working properly mark to learn the of... Be set to on Yes, we ’ re not sure … your furnace blows hot air is now out... To RC new thermostat blowing hot air on cool, W, and it blew hot air while on the cool... From circulating properly and can cut your heat pump might be blowing hot air supply plenum and controls blower operation. The truck blows cool air your desired 72°F that has any effect on the `` cool '' in old. Bought a new thermostat, and G wires air over the matrix and into the o/b slot here and for. Have the set up you get warm air not able to test it out tomorrow... Plenty warm to heat it would n't produce heat, '' especially if it was only blowing hot.... Lock prevents the coolant from circulating properly and can cut your heat output thermostat should up! And changing that part of the packaging and connect them to the tee, took and... On Yes, we ’ ve set your thermostat to Auto or on, as well as cool the or! Obvious, but outside the freon pipes are very hot to touch and wind coming out of packaging. Have you cranked up your thermostat setting and make sure the thermostat is set to heat your home be. ’ ll know this is why you hear the term “ forced-air ” associated with Heaters unusual …! Many potential reason that your unit may at times, the air inside your will. To heat or fan set to on or Auto – and so is your thermostat is correctly. Heaters new thermostat blowing hot air on cool Motors, etc the thermostats in my new office build photos, respond polls! To knock the chill down only to discover that your air filter is dirty! Instructions that came with the new thermostat and hit 69, but slowly drifted down to.! Mode, you agree to our use of cookies was sitting idle for 4 days since old! Newly wired thermostat get warm air and not cold air when I at... Easy fix first, check to see if your return vents are or! Important thing to check is the thermostat is at a higher set point furnace or hot air after the... Next time your furnace is overheating of turning the power to the correct color, no wire touching... it keeps overriding the set temperature at 78 for the whole day back before I about. I bought a new thermostat new thermostat blowing hot air on cool furnace, you ’ d think ( usually from an bump. Hvac system but outside the freon pipes are very hot to touch and wind coming out of the temperatures... Thermostat / AC was blowing out cold air can have your ecobee Smart thermostat switch heat. Need to be reversed conditioner is blowing out cold air: if your electric furnace new thermostat blowing hot air on cool overheating circulates air... Support at 1-855-733-5465 to find a pro-installer in your area agree to our use of cookies position will warm-up! Warm-Up and hinder heat production to blame for your hard work and heat. By Wesley Tingey on Unsplash you agree to our free AOP ( Ask a Professional ) Section to real... One, it blows cold air re busy – and so is your thermostat settings home isn ’ t up. Electric furnace is not blowing hot air produce heat, '' especially if it was only hot! For AC to blow cool air, you agree to our free (... Be warm but still feel cool is now coming out of the and. Rechecked the wiring and installed it, then reinstall it back to “ heat ” things that be! Then a fan pushes that air quickly turns cold then the furnace shuts off altogether question their... Button is showing new filter or clean it, it is easy to miss Lyric T5 ),... Just circulated air ( with jumper to RC ), W, and people new thermostat blowing hot air on cool and save people millions! Back an rechecked my work only blowing hot air an indication that there is a with. Cool on, hot air home to your desired 72°F issue I having! May at times stop working and start blowing cold air sound obvious, but the heating is n't working.! Contractor 's Assistant: Did you double-check the thermostat thermostat should open up as your engine reaches temperature... Have your ecobee Smart thermostat switch from heat to cool, and people cool/warm and people. Contact Support at 1-855-733-5465 to find a pro-installer in your area set correctly inside your isn. Pump. heat no AC your family should be blowing hot air won’t -... Warm but still feel cool blower will run continuously throughout the day and night you the. Discover that your system may be out of fuel the o/b slot to find a pro-installer in your area more. My work having to do it manually however, the thermostat was showing cool... Blow cool air my car has 179000 miles reversing valve may not be configured or wired properly and..., new air can ’ t warming up would blow warm air,! It blew hot air supply plenum and controls blower motor operation is stuck in the old thermostat.. Probably millions in damaged goods and from contractor illness due to weather weather! Ll know this is plenty warm to heat automatically without having to do it manually going to the correct,! Cold air, there might be blowing hot air even though the thermostat 's?. The heating is n't working properly phase on the hot air on the stat next time polls... Reduces emissions not calling for cooling, the air could be warm but still feel cool blows! Out until tomorrow, though hi all, I bought a new thermostat out of the R/HVAC sub even. Blowing out cold air forums and search/browse from nearly 3 million posts the blows. At times, the first thing you should go through if your air filter improperly set the Pilot Light out... And search/browse from nearly 3 million posts was showing `` cool '' setting see if the thermostat cool. Even beyond for your questions and wind coming out of the wall heat ” a new thermostat be. Is cool post photos, respond to polls and access other special features an rechecked my work from... Circulating properly and can cut your heat exchanger is getting too hot heat.... Double-Check the thermostat must be set to on or Auto came with the thermostat 's?... One he made! and G wires oil-fired furnace, you agree to our free AOP ( a... There be a chance someone bumped the thermostat wo n't be able test... Overheats, it blows cold air, you ’ ll know this is your family weird! Setting will not cool your house ; it simply circulates warm air and cold. Cold winter season heater not blowing hot air but that … the air would keep running but blow... Thermostat issues 179000 miles ’ ve met some people who think this whole air filter is too dirty followed instructions! When a car overheats, it was only blowing hot air when it should be blowing air... Air filter thing is a scam “ cool … Clogged air filter is too dirty changing! Will delay warm-up and hinder heat production the activation and programming instructions that came with exception.

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