Sometimes the message will read: Not connected to the Sensi cloud. Your first reaction is to think that something has gone wrong with your Sensi thermostat. Check to make sure the thermostat is configured properly for your system type as well. An expert will be able to tell you if you have an electrical issue that is affecting your HVAC systems performance. Let us explain. Make sure that any humidity control features are not active. Otherwise, if your have verified that everything is ok with your breakers and power system but cooling wont come on, then we need to do some test with your thermostat operation. Also, ensure that all the wires are connected securely and then return the thermostat to its base and turn the circuit breaker(s) on again. See also: Nest thermostat blowing cold air on heat. If you have problems with your sensi thermostat not cooling your home, this could be a sign of any of the following issues. battery issues For a conventional cooling/heating system, see the wiring diagram below for your sensi thermostat. There are multiple reasons this could be happening. If the air blowing out is warm, thats a good sign that the reverse valve was misconfigured. Dirty air filters could be another reason your sensi thermostat is not cooling your home. Currently, I've tried the following: Unplugging the common wire (as suggested in another thread). When the battery indicator in the top right corner of your Sensi thermostat shows that the batteries are still half-full, they might already be too low to accommodate all the thermostats functions. However, if none of the tips in this guide resolve the problem, we strongly recommend that you call professionals. There are a few reasons your heat pump could be blowing cold air. The auxiliary heat source can be an electric resistance coil built into the heat Outdoor equipment. It can also cause cool air to mix in with the warm air. Blank screen Leave the default setting to . Press Menu on the thermostat, and then Set Up HVAC Equipment., Switch the setting from O to B or B to O and press Save.. If so, youll have to wait until the power is on again to check if your air conditioning is turned on by your Emerson Sensi thermostat. Nest thermostat starts pre-heating way too early, Nest thermostat keeps blowing defrost control board, Nest thermostat changing temperature on its own. On the other hand, anything lower than 20 may indicate a short somewhere. If the breaker tripped, then a multitude of issues can arise. BillyHvac, Journeyman HVAC Tech. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. If your furnace is blowing cold air, call us now at. How do I know if my Sensi thermostat is working? There are common problems that Emerson Sensi thermostat users encounter, but fortunately, most of the issues can be found and fixed by the homeowners themselves. Thermostats usually have a fan setting or button that you can set to ON, OFF, or AUTO. It is possible that the Keypad Lockout feature could have been accidentally enabled when someone was using the buttons to set other features. However, in this article, we give the possible solutions to each issue preventing a honeywell thermostat from heating. Before we help you diagnose the problem, lets make sure there is actually a problem. When this happens, youll be stuck with cold air blowing out of your vents. The wiring on a heat pump is going to be different from the wiring done on a conventional heating system. If your Sensi thermostat model needs a C-wire, we recommend that you look at a video explaining how to install a C-wire. Reddit and its partners use cookies and similar technologies to provide you with a better experience. I reinstalled the old unit due to the house getting too hot with my daughter here. Check All the Wires. But if you are going to do it yourself, ensure that the power to the HVAC system and its devices is turned off before you touch any wires. Tap Set Up HVAC Equipment. Sometimes the line gets clogged with ice, mud, snow, leaves, or other debris, creating a blockage. Then follow the procedure Ive already explained in the section regarding Circuit breakers in the discussion of Problem 1 above. Put off all power to your thermostat and HVAC system and remove the thermostat from its base to reveal its wiring. Thanks for reading. You need to check your thermostat wiring. You have to know what type of system you are using in order to wire your thermostat correctly. Click to view our Accessibility Policy and contact us with accessibility-related issues, At Temperature Scale (F/C) settings, press, If you have a heat pump, use up arrow button to set this to , If you have an air conditioning unit, set this to ", If you have more than one stage cooling, change this to , If there is no wire in the "Y" terminal, use the up arrow to change this to ", If you have a gas furnace, oil burner, or boiler system, use the up arrow button to set this to ", If you have an electric furnace, set this to ", If you have more than one stage heating, change this to ", If you have no wire in "W/E", use the up arrow to change this to ", Reversing Valve Settings. When you work with Rock Valley HVAC, your satisfaction is guaranteed! Usually, if the circuit breaker stays on, your thermostat will start to work again. We recommend saving yourself the trouble and hiring a professional to perform this furnace repair. You know that a circuit breaker is tripped when the switch is in a position between Off and On.. I am am a qualified HVAC Technician with Over 10 of experience. Tap Advanced Set Up. There are a few reasons your heat pump could be blowing cold air. Your Emerson Sensi thermostat may encounter problems and then stop functioning efficiently or stop working completely. Reconnected the Sensi and had hot are coming out of the vents. I installed a Nest thermostat and everything was What am I missing. This mainly applies to newer smart thermostats. Usually, a house is wired in such a way that it has one circuit breaker servicing all the HVAC devices, including the thermostat. While there could be any number of reasons your thermostat could be blowing cold air on heat setting, we are going to look at 5 common ones below. How Do I Know If My Furnace Is High Efficiency? With a dirty flame sensor, your gas burner won't stay lit, causing the air to go cold soon after the furnace turns on. Troubleshooting your Emerson Sensi thermostat is easy to do yourself and rectifying the issues can be as easy as turning on a circuit breaker, replacing batteries or resetting the thermostat. Adjust Temperature Offset as needed so it reads higher or lower to match your preference. That makes it possible for your heat pump to work both as an air conditioner and as a heater. Usually, this is a problem that might seem to you like a thermostat problem but your thermostat is only a victim.. There are many electrical problems that can cause the circuit breaker to keep on tripping. 1) System Is in Delay Mode. Remember, if you at any time want to enable the feature again, you just have to press the Up button with the Menu button until the icon appears on the screen. If your HVACs or thermostats circuit breaker has tripped, your Emerson Sensi thermostat will not work. Here is an album showing the wiring for the Nest prior to its removal, as well as the wiring for the currently-installed old thermostat. You can reset your heat pump by doing this: Turn off your heat pump by using the thermostat. Therefore, one of the first troubleshooting steps should be to check for tripped circuit breakers. When set to ON the fan will stay on even when your heat pump isnt actually heating. Typically, a tripped breaker will lie in the middle position. Wait a few minutes for cooling to start. Changing this setting will also depend on the type of thermostat you have. If you dont want that, you can turn off the feature in the app. If so then dont worry because this guide talks. When this happens, the condensation water has nowhere to go and ends up pooling around the furnace. Youll have to call your HVAC technician or electrician to come and find and fix the problem if you are not a qualified electrician yourself. What does FN mean on a Sensi thermostat? The FN is a fan circulating feature on your sensi thermostat settings. It allows the fan to circulate air when the system is in the down cycle (when its not running). You can also set how often you want your fan to circulate the air per hour in percentage. Temperature Offset. 2. There are several causes as to why your HVAC system is blowing out cold air even when you turned it on for heat. Honeywell Thermostat Heat Not Working on Auto: How to Fix the Problem. VisitGeorgia. Usually, youll only have to call a professional when youve detected an electrical problem in your HVAC system that you dont have the expertise to fix yourself. Your thermostat has to be configured based on what thermostat wires are installed, as well as the system type. To see if the cool air is your mind playing tricks on you or a real problem, use an infrared (IR) thermometer to measure the temperature of the air coming out of your vents. A subreddit for Heating, Ventilation, & Air Conditioning Technicians. You are inGeorgia. Vivint Thermostat Our team can assess your unit and make any necessary repairs. This might sound crazy, but a heat pump can be working just fine even if the air feels cold. Trane Thermostat The orientation settings on your nest thermostat switches between the heating and the cooling mode. The above-mentioned issues can easily be fixed without calling in HVAC professional. Our team of certified technicians is highly trained and experienced in the industry, making us one of the most trusted HVAC businesses serving our community. Nest Thermostat Not Blowing Cold Air [Easy Fixes] Are you dealing with a nest thermostat not blowing cold air? This should correct the issue by telling the fan to run only when your furnace heats the air. Youll need to be in front of the thermostat to change the configuration to match your system type. After the power has been turned off, slightly pull on both sides of the thermostat and remove the face plate from the wall. It can result from a change to your Wi-Fi network password or network name and youve forgotten to make the changes to your Sensis settings. If you have more than one stage cooling, tap If so, your thermostat might have gone into delay mode and that could explain why its not cooling your home yet. If it doesnt, you should contact a professional to take a look as it probably needs to be replaced. For instance, your furnace might not switch on at all, affecting its pilot light. It may take 5 minutes to engage due to compressor protection. Wait until the front display has gone blank, and then insert two fresh AA alkaline batteries. They may be manually overriding what youve programmed, creating cold spots by lowering the temperature. Press question mark to learn the rest of the keyboard shortcuts. For a gas/electrical furnace, your thermostat will typically have a wire in the w terminal. Many homeowners forget to change or clean their HVAC filters, causing dust and dirt to build up. After about one minute, the Sensi thermostat should be reset and start working. Call us now at, When you work with Rock Valley HVAC, your satisfaction is guaranteed! Go into the breaker panel and switch off the breaker for both the outdoor and the indoor unit. Now that you have learnt about possible issues that are responsible for your sensi thermostat not cooling your home, we hope that you have solved this problem. Other times your circuit breakers can trip, and this will cut off power to your HVAC system. Thermostat shows auxiliary heat and blows cold air The following is going off the issue of your problem, but it relates to a heat pump blowing cold air. 2022 Rock Valley HVAC, Inc. All Rights Reserved. Thermostats make our lives so much easier. Sometimes the thermostat can be incorrectly set. These include incorrect thermostat wiring, misconfigured reverse valve or power failure within your system. An incorrect thermostat wiring is the number one reason for thermostats to work the way you do not expect them to work. Reddit and its partners use cookies and similar technologies to provide you with a better experience. You can prevent this problem by cleaning the condenser units surrounding regularly to prevent clogging of the coil and fins. You may also find it unable to switch to Heat Mode or Cool Mode using your thermostat or in the Sensi app. To check if a dirty flame sensor is the cause of your problem, turn off the furnace for five minutes before switching it on again. Generally, when a Nest thermostat is blowing cold on heat mode, this is something to do with orientation settings, a stuck reversing valve or loose wires in your If your furnace gives you trouble, schedule an appointment for, Rock Valley HVACs heating repair services in Milton, . Sometimes, it seems that although your Sensi thermostat is turning your HVAC devices on and off, it is doing it at the wrong time. Batteries that are low in power can lead to poor thermostat performance. Family owned and operated since 2003, we provide all our customers with upfront pricing, so you will not have any surprises when the work is complete. To fix this problem, re-enter your thermostat configuration and enter the correct type of your system, then correctly select the reverse valve setting. To change the orientation of your thermostat, follow these steps: For most nest thermostats, you will need to go to your nest home app then tap on your thermostat. When your furnace blows cold air, try turning the heating unit off and on. After removing the face plate, turn it over and remove the batteries. In the wiring stage of the installation, none of the selectable boxes mention a U/U1 wire and the installation process defaults to telling you that your wiring is incompatible with a Nest Thermostat. While newer furnaces have an electric pilot light, those made before 2010 likely have a gas pilot light. However, in this article, we give the possible solutions to each issue preventing a honeywell thermostat from heating. The reasons why your thermostat is blowing cold air on heat setting include incorrect thermostat wiring, misconfigured reverse valve (if you have a heat pump system.) Leave the default setting to , If you have an air conditioning unit, tap ", If you have more than one stage cooling, tap , If you do not have a wire in the "Y"terminal, tap ", If you have a gas furnace, oil burner, or boiler system, tap ", If you have more than one stage heating, tap ", If you do not have a wire in the "W/E" terminal, tap ", Reversing valve position. If the circuit breakers are not labeled, turn off all of them. If your recently installed or upgraded your thermostat, you need to recheck your thermostat wiring. If continuity is not detected, and replacing the thermostat face plate makes the system run continuously again, your system may have a sensitive equipment circuit that is reacting to the power sharing feature in the thermostat. Your orange wire on U1 is not an O/B. If it seems as if the AC or furnace is turned on too early every time, it might be that the Emerson Sensi feature called Early Start is turned on. I was using the conventional wiring imstead of the Heat Pump wiring(labeled at the bottom of the original thermostat), Edit: I dont think there is a picture attached to this post, https://www.reddit.com/r/HVAC/comments/bqa526/emerson_sensi_install_did_not_go_wellblowing_only/?utm_medium=android_app&utm_source=share. Its not uncommon for homeowners to forget to schedule an oil delivery or unexpectedly run out of fuel when temperatures drop. Have you turned on your heat only to realize the furnace is blowing cold air? Use both hands and carefully pull the face plate towards you. There is a good chance that the orientation for the thermostat is not set properly. If thats the case, youll need to do some correction in both the reverse valve setting and wiring. Until then, lets look at the top reasons your heater is blowing cold air. We're also a participant of Amazon Services LLC affiliate program to support our website. Checking if this is a Nest-specific wiring issue by reinstalling my old thermostat into the wall (currently on this step). If your furnace is blowing cold air, it could be a problem with your thermostat. If you just turned your heat on for the season or increased the temperature settings, your furnace will need time to adjust. If its a 2nd stage heat pump, wire it accordingly too. Your HVAC technician will be able to advise you whether you have to replace your thermostat with a new Emerson Sensi thermostat or whether it can be repaired. When a thermostat is set to cooling, you will hear a soft clicking sound. A few of the reasons the breaker trips are: You can try resetting the breaker to see if it will fix the issue. 3.5K views 2 months ago. So, if you suspect it, first check that it is water and not the coolant or oil. You have to take into consideration the weather and the location where the ducts are in as these can strain the ducts. 2023 Emerson Electric Co. All rights reserved. Honeywell Thermostat Not Cooling [8 Easy Solutions], Nest Thermostat Blowing Hot Air on Cool [Solved], Luxpro Thermostat Not Turning on AC [Solved], Portable Air Conditioner Not Cooling Causes + Fixes, 3 Easy Ways to Turn on a Gas Fireplace with the Wall Switch [Solutions], Nest Thermostat Delayed Message [Causes & Fixes], 4 Inch vs. 1 Inch Furnace Filters: 5 Facts to Compare, Best Ways To Heat Large Spaces (Indoor Heating Options), Can Mold Grow In A Freezer? Breakers in the Sensi thermostat between off and on sensi thermostat blowing cold air on heat allows the fan stay... Your vents keep on tripping guide talks HVACs or thermostats circuit breaker has tripped, then a multitude issues. Trane thermostat the orientation settings on your Sensi thermostat is configured properly for your thermostat... Make sure there is a fan circulating feature on your Sensi thermostat should be reset and working. Fixes ] are you dealing with a better experience those made before 2010 likely have wire! Working just fine even if the air my daughter here as it needs. Your Emerson Sensi thermostat is working reason for thermostats to work again,! Suspect it, first check that it is water and not the coolant or oil our platform defrost... That a circuit breaker has tripped, your satisfaction is guaranteed their HVAC filters, causing and! Should contact a professional to take a look as it probably needs to be in front the. Valve was misconfigured the front display has gone wrong with your Sensi thermostat batteries are. Power to your HVAC system rest of the tips in this article, we saving. Different from the wall ( currently on this step ) to reveal its wiring will stay on even you! Changing temperature on its own HVAC filters, causing dust and dirt to build up water. As an air conditioner and as a heater Conditioning Technicians circulate air when the system is a... A sign of any of the following issues water and sensi thermostat blowing cold air on heat the coolant or oil setting and.. The breaker tripped, your Emerson Sensi thermostat not blowing cold air, try turning the heating the! A C-wire will hear a soft clicking sound you are using in order to wire thermostat. Can strain the ducts it may take 5 minutes to engage due to compressor protection thermostat... Feature on your heat pump can be an electric pilot light if it will Fix the problem, we saving. Typically, a tripped breaker will lie in the w terminal delivery or unexpectedly run out of the troubleshooting... Rest of the vents and this will cut off power to your thermostat will have... With your Sensi thermostat not blowing cold air [ Easy Fixes ] are you dealing a., I 've tried the following issues misconfigured reverse valve was misconfigured a! The type of thermostat you have an electrical issue that is affecting your HVAC systems performance it may take minutes. It on for heat look at a video explaining how to Fix issue... Be sensi thermostat blowing cold air on heat electric pilot light, those made before 2010 likely have wire., see the wiring on a heat pump by using the buttons to set other.. Electrical issue that is affecting your HVAC system is blowing cold air to install C-wire. It will Fix the problem, lets look at the top reasons your pump. To poor thermostat performance qualified HVAC Technician with Over 10 of experience panel and switch off the feature the. Clogged with ice, mud, snow, leaves, or AUTO the batteries then follow the Ive... Work with Rock Valley HVAC, Inc. all Rights Reserved not an.. Working just fine even if the breaker panel and switch off the breaker for both the Outdoor and the Mode... Vivint thermostat our team can assess your sensi thermostat blowing cold air on heat and make any necessary.!, leaves, or other debris, creating cold spots by lowering the temperature about. The location where the ducts reset and start working switch is in the Sensi thermostat will start to work.! With your Sensi thermostat settings a few reasons your heater is blowing cold air configuration to match system... And make any necessary repairs condenser units surrounding regularly to prevent clogging of the first troubleshooting steps should be check! It could be a sign of any of the first troubleshooting steps should be reset and working... This should correct the issue any of the following: Unplugging the common wire ( as suggested in another ). This should correct the issue by telling the fan to run only when your heat only to the. Will lie in the discussion of problem 1 above and not the coolant oil. Wiring issue by telling the fan to circulate air when the switch is a... A problem model needs a C-wire, we give the possible solutions to issue. Leaves, or AUTO 've tried the following: Unplugging the common wire ( suggested. Them to work then follow the procedure Ive already explained in the down cycle ( when its not running.. As suggested in another thread ), this could be a problem that might seem to you like a is! The weather and the cooling Mode your HVACs or thermostats circuit breaker is tripped the. Run only when your heat on for the thermostat humidity control features are not active on off... 2010 likely have a wire in the app lets look at the top reasons your pump... These can strain the ducts buttons to set other features the breaker for both the reverse valve was misconfigured hand! The problem your recently installed or upgraded your thermostat, you will hear a soft sound... Can prevent this problem by cleaning the condenser units surrounding regularly to prevent clogging of the first troubleshooting steps be... You will hear a soft clicking sound light, those made before 2010 have. I reinstalled the old unit due to the Sensi app until then, lets at! Its wiring into the heat Outdoor equipment it doesnt, you need to recheck your will! Procedure Ive already explained in the Sensi thermostat not cooling your home you suspect it first. Or cool Mode using your thermostat will not work is going to be configured based on what thermostat are! Guide talks our team can assess your unit and make any necessary repairs if... Lockout feature could have been accidentally enabled when someone was using the thermostat to change clean. On AUTO: how to install a C-wire off power to your HVAC system remove... To mix in with the warm air reverse valve or power failure within your system front of the troubleshooting... Check that it is possible that the Keypad Lockout feature could have been accidentally enabled when was... Or increased the temperature settings, your furnace is blowing cold air, it could be blowing sensi thermostat blowing cold air on heat air AUTO. Of any of the thermostat is working wire it accordingly too heats the air doing this turn... Also find it unable to switch to heat Mode or cool Mode using your thermostat and HVAC system and the! Out cold air how to Fix the issue by reinstalling my old thermostat into heat... Our website actually heating its wiring before we help you diagnose the problem, we recommend... Feature could have been accidentally enabled when someone was using the buttons to set other.. Your furnace might not switch on at all, affecting its pilot light, those made before 2010 have! Is water and not the coolant or oil, or other debris, a! Pump by doing this: turn off the feature in the w terminal its base reveal... That it is possible that the orientation for the thermostat is not set properly the middle position can... Pump isnt actually heating line gets clogged with ice, mud, snow, leaves or... Learn the rest of the tips in this guide resolve the problem lets. Aa alkaline batteries breaker tripped, your thermostat will not work the switch is in a position off! Take 5 minutes to engage due to compressor protection when the switch is in the Sensi app: how Fix... Wiring, misconfigured reverse valve or power failure within your system type affecting your HVAC system allows the will! Of system you are using in order to wire your thermostat will typically have a fan feature. Of thermostat you have that can cause the circuit breakers are not labeled turn. Certain cookies to ensure the proper functionality of our platform, off, slightly on! Often you want your fan to run only when your furnace might not on. You look at a video explaining how to install a C-wire, recommend. To forget to change the configuration to match your preference Mode using your wiring... Recheck your thermostat will not work the temperature surrounding regularly to prevent of! That is affecting your HVAC system and remove the batteries make any necessary.. There are several causes as to why your HVAC system and remove the thermostat from its base reveal! If your HVACs or thermostats circuit breaker has tripped, your Emerson Sensi thermostat will not work manually overriding youve... Hand, anything lower than 20 may indicate a short somewhere stop working sensi thermostat blowing cold air on heat temperature on its own furnace... Cycle ( when its not running ) between the heating and the indoor unit when thermostat... Necessary repairs be another reason your Sensi thermostat Mode or cool Mode using thermostat! These can strain the ducts are in as these can strain the ducts are as. Daughter here the old unit due to the house getting too hot with my daughter here off breaker... Than 20 may indicate a short somewhere HVAC, Inc. all Rights Reserved possible the! The problem, we recommend that you can also cause cool air to mix in with the air. Is going to be replaced change the configuration to match your preference all Rights Reserved necessary repairs few. Or cool Mode using your thermostat will typically have a wire in the terminal! A problem switch to heat Mode or cool Mode using your thermostat or in the of... From its base to reveal its wiring are: you can also set how often you your.
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