The fan is located in the inside unit and helps distribute the conditioned air throughout your home.“Auto” means that the fan automatically works ONLY when the air is being heated or cooled. What AUTO and ON mean. Should I Use My Thermostat’s “On” or “Auto” Setting? var y = d.getFullYear(); Thermostat mounting 1. When you want it to cool, you set it to cool. This is the normal setting for a system fan. Did I hook it up wrong? The primary advantage of the “auto” setting is that it uses less energy. You can press FAN to override the fan settings you’ve programmed for different time periods. When either AUTO or CIRC is chosen Fan Control Display options are ON, AUTO, or CIRC. The main problem with the “on” setting is that your fan is always using energy, which will increase your monthly utility bills. AUTO means that the fan turns on automatically only when your system is heating or cooling air. They are great for use in hotels, condos, and school classrooms. I just installed a new digital thermostat. Expensive! If you have any questions about the difference between your thermostat’s fan “on” or “auto” settings, or if you’d like a cooling system serviced or installed in your home, contact Hydes, your Coachella Valley air conditioning contractor, at (760) 360-2202 today! I'm looking to replace an aging Honeywell thermostat, basically your standard builder grade programmable model from the 2000's. Yep, on runs the fan all the time, auto runs the fan when the unit is heating or cooling, and circulate runs the fan at least 30% (or some other predetermined amount) of the time. These 2 settings refer to how your air conditioner’s fan will run. Nest Thermostat Fan Schedule - Duration: ... Honeywell 8000 Thermostat - Heat, Cool, and Auto Modes ... Honeywell 9000 TH9320WF5003 Wi-Fi Thermostat Enabling Auto Changeover - … The fan will start about 40 seconds after the burners light and go off about one minute after the temperature is satisfied. The Honeywell CIRC function runs the fan a RANDOM 35% of the time, without regard for whether a cooling call has just ended. document.write(y); How Much Does It Cost to Install an Electric Furnace? At about 8 am on 18 August, I changed the thermostat fan setting from "auto" to "on" and ran it that way for the next five days. FAQ | When the fan setting on your thermostat is set to “auto,” it means that your system’s fan will only run during your home’s heating and cooling cycles. The air temperature will be similar to the space temperature; however, relative to your body temperature, it will feel cold. The fan setting controls your AC’s blower; A fan inside your system that helps distribute air throughout your home. Terms of Use | If you have only Auto showing and the fan still operates you may have a defective thermostat. is president of Paramount Heating & Air Conditioning in Columbus, Ohio. However, one button that is common on every thermostat is the "on" and "auto" fan setting. 2. I have a 1-1/2 year old Honeywell digital touch screen 8500 thermostat. One option found on almost every thermostat is the fan “on” or “auto” switch. A variable speed air handler runs nearly all the time, allowing for the advantages of the “on” setting, but can operate at a number of different speeds depending on how much airflow is required at any given time, allowing for the energy-saving advantage so of the “auto” setting. AUTO means the fan turns on “automatically” ONLY when your system is heating or cooling your air. Auto setting only runs the fan with the heating or cooling system. The furnace filter clogs up quicker, although a filter that clogs up quick is doing its job. Thermostats which have R and an RC terminal are Heating/Cooling thermostats. If set to Auto it will ignore this feature but if Auto and Circ are displayed it will not (page 25). RELATED: What Temperature Should You Set the Thermostat to While on Vacation? When the fan is on, the air is being pulled through your filtration or UV light system, cleaning it. The content of this field is kept private and will not be shown publicly. Hi. Manual Overide Programmable Portion says: Circ - overides fan schedule. I showered without using the bath fan. Pros for “Auto”: If you set your furnace fan to “auto,” the fan will only run when the system tells it to in order to keep your home as warm as you want it based on your thermostat settings. How to Properly Maintain Your Home Heating System. Some of them are extremely basic and only have a few settings, while others have all kinds of settings and customizations that allow you to have complete control of your heating and cooling system. This thermostat setting is to blame. And keeping your thermostat set to “ON” can actually cost you more money. Fan set to auto = when the system is running the clean effects is working but only when the system is calling for heating or cooling so works when the system is on only. This means it’s consuming less energy than when it runs non-stop, which means lower furnace bills. It should remain closed without bulging. Circ setting runs the fan approx 33% of the time to ensure air circulation. Once the. Once the thermostat reaches the … Variable speed air handlers provide a compromise between the “on” and “auto” settings. About this Experts Contributor: As of June 17, 2015, this service provider was highly rated on Angie's List. The auto setting is energy efficient and may be enough for most typical-use homeowners. FAN AUTO 1. ‒ On: Fan is always on. Moving air also feels cooler than still air due to skin evaporation. Fan set to circulate = the fan coming on if wired properly to run so many times in a hour at 50% fan speed … Allow us to explain. The views expressed by this author do not necessarily reflect those of Angie's List. I have an old trailor..old furnace.. Should it bnom th on or auto to save on light bills? Auto helps distribute air in the beginning of the cooling or heating cycle and then cuts off when the set temperature is reached. There are all kinds of different thermostats on the market. * On setting runs the fan continuously. FAN switch set to: "AUTO" run let the fan be turned on or off automatically under control of the heater or air conditioner itself - when the thermostat asks for heat and the furnace warms up the fan will turn on. is set to “auto,” it means that your system’s fan will only run during your home’s heating and cooling cycles. This is sitting in front of an Aprilaire zone controller from the same era, 1H/1C. Then press DONE 3. Thermostat FAN "Circ" mode - 2 thermostats dueling. There are two settings on your thermostat to control the fan – auto or on. During heating, the fan is controlled by either a timer circuit or a limit circuit in the unit. Fan modes: ‒ Auto: Fan runs only when the heating or cooling system is on. On cooling, the fan will run only when the air conditioner is running. I've never been able to set the fan setting to AUTO without the ON option also showing up. Almost every thermostat features separate controls for the heating and air conditioning system and fan control. In the winter, keeping the fan on will also give you the feeling of cold air coming out of the vents. When the thermostat fan setting is set to “on,” your system’s fan will constantly run, regardless of whether or not your home is going through a heating or cooling cycle. The blower helps circulate hot or cold air throughout your home until the temperature on the thermostat is reached. Many homeowners have questions about which of these settings to use, so today we’re going to talk about the difference between the “on” and “auto” settings and how to choose which one is right for you! The FAN selection key has two or three positions: Auto, On, and on select models, Circ (Circulate). Home Categories The fan will start about 40 seconds after the burners light and go off about one minute after the temperature is satisfied. Benefits However, you don’t have to invest in a new furnace to get benefits of both settings. The con you forget was the more air you move in a building you will also increase the heat loss. The percentage represents how often the thermostat will run the fan in one hour. A key part of this is knowing the difference between the "Fan" and "Auto" settings on the device. Furnaces with a variable speed motor have a “constant on” setting, which is the best setting because it has the advantages of the “on” setting but with unbelievably low energy usage. How Much Does it Cost to Replace AC Capacitor. The main problem with the “auto” setting are that it goes through many stops and starts which can wear on the fan over time and lead to increased repair costs. Thermostats come with a number of different customization options that go beyond just controlling the temperature in your home. If you’re interested in the comfort and air quality improvements that the “on” setting can provide, but are worried about the higher cost that comes with, consider installing a system with a variable speed air handler. Because there are pros and cons for each setting, there is a lot of confusion about which setting to choose. A variable speed air handler runs nearly all the time, allowing for the advantages of the “on” setting, but can operate at a number of different speeds depending on how much airflow is required at any given time, allowing for the energy-saving advantage so of the “auto” setting. The fan only runs when the furnace tells it to. When the thermostat fan setting is set to “on,” your system’s fan will constantly run, regardless of whether or not your home is going through a heating or cooling cycle. Save Money by Replacing Heat, AC at Same Time. Honeywell TB6575A1000 - 3-Speed Fan Coil Thermostat; 2 or 4 pipe Manual/Auto changeover, Heat/Cool/Auto, 3 speed fan; Supply voltage: 120/240 Vac - The TB6575A, TB6575B, and TB8575A are a family of Digital Fan-Coil thermostats for residential and commercial applications. When ON is chosen, fan stays ON. It also increases reliability: Less starts and stops of the fan means it will last longer (think city versus highway miles). Example: If you set the circulating fan to 50%, the fan will run 30 minutes every hour. Changeover Manual or Auto changeover selectable System setting Heat-Off-Cool-Auto (Em. Align the UWP with the thermostat, and push gently until the thermostat snaps in place. I'm barley home.barley cook.what can I do to lower my bill? Setting the fan on "auto" The fan only runs when the furnace tells it to. MORE: What Smart Thermostat is Right for Me? Rated 5 out of 5 by justferfun1 from Great thermostat I bought this to replace an older Honeywell programmable thermostat which was still working fine after 15 years but I wanted one with back lighting so that I don't have to turn on lights at night to change the temperature setting. I telephoned Honeywell to make sure of this, as I really really wanted a non-random algorithm which would give more time to let a wet coil drip dry -- as a few (not many) other control algorithms do. Scheduling the Fan You can set the fan to on, auto, or circ for each program when using time-based scheduling or geofencing. The “auto” setting. https://www.tradesmandrcool.com Ever wonder how to set the fan control on your thermostat? If the fan isn’t on, these systems designed to keep the air cleaned can’t be utilized. You can set the Circulating Fan feature from the thermostat or the Sensi app. When you want the system to heat, you set it to heat. | Interested in a Heating & Air Conditioning/Hvac job? When the heat is on, the fan will only turn on as your home heats up. When the thermostat reaches your temperature setting, the … Editor's Note: This is an updated version of an article that was originally posted on March 4, 2014. Press FAN to select fan operation 2. The answer is given in the two graphs below. What Are the Benefits of a Ductless A/C System? Because the fan only runs when your home is in a heating or cooling cycle, there are times when the fan is completely off and doesn’t consume any energy. Privacy Policy | is reached, the fan shuts off until the next cycle. The furnace wont start when I put the switch on auto but it will start and run the minute I switch it to fan. How Much Should it Cost to Replace Evaporator Coil? Ratings are subject to change based on consumer feedback, so check Angie's List for the most up-to-date reviews. All comments are subject to review and approval prior to posting. Hello! Yes, circ fan runs randomly about 35% of the time not including heating or cooling time. Honeywell Electric Programmable Thermostat - 24 V - White is rated 5.0 out of 5 by 1. Thermostat fan “on” or “auto” setting: what’s the difference between the two? Most new thermostats have a “circulate” option that allows you to set the fan to run a certain amount of time per hour. Circ - fan runs randomly approximately 35% of time. I brought in a lot of outdoor air for ventilation. If my furnace calls for heat a lot when it's real cold outside is it more cost efficient to keep the fan set to the on setting because it costs less to keep it running steady vs starting and stopping frequently at what point is it best to keep it on vs auto ? Enter a zip below and get matched to top-rated pros near you. When cooling, the fan will only run while your air conditioner is running. There is less even distribution of heating and cooling on the "auto" setting. So once your home reaches the temperature set on the thermostat, the fan stops.“On” means the fan is on 24/7, even when the air isn’t being heated or cooled. Options: • On: Fan is always on. What are the pros and cons of the fan “on” or “auto” settings? Because the fan only runs when your home is in a heating or cooling cycle, there are times … But it runs constantly. Once the thermostat is satisfied, the fan stops moving air to other spaces in the home. Fan Control Display options are ON, AUTO, or CIRC. All Rights Reserved. Contact Us | If you have any questions about the difference between your thermostat’s fan “on” or “auto” settings, or if you’d like a cooling system serviced or installed in your home, contact Hydes, your Coachella Valley air conditioning contractor, at, Air Quality Issues In the Coachealla Valley. I would like a thermostat that can run the fan now and then even when no heat or cooling are being called for. Push excess wire back into the wall opening. California Privacy. More starts and stops of the fan also mean more opportunity for it to wear out and fail. Close the UWP door. But what about the fan? This setting, which is the default in most forced-air HVAC systems, will turn on based on the status of your heating or cooling system. Why You Might Notice Burning Smell from Your Furnace Around this time of year, you may turn on your furnace for the first time and... Why Indoor Air Quality Is Becoming So Much More Important To Coachella Valley Homeowners If you feel like air quality is getting worse, you are... How to Tell When to Get Your AC Unit Replaced Rather Than Repaired A broken down air conditioner is an awful headache to anyone living... © The circulating fan feature can only be programmed at the thermostat in 5% increments from 10%-100%. When your fan is constantly running, air is always cycling through.  Lic #906115 | Certified Comfort Systems, Inc. dba Hydes Air Conditioning, Terms & Conditions | Privacy Policy | Sitemap  All Rights Reserved | Design and Marketing by LeadsNearby. 5 Replies ... power consumption is very low with ECM blowers and it may be better to just leave the blower on all the time if Auto is not used. Visit the Solution Center to Explore Articles, What Temperature Should You Set the Thermostat to While on Vacation. (Photo by Summer Galyan). Heat for heat pumps) Fan setting Auto-On-Circ Terminal Voltage (50/60 Hz) Running Current W Heating 20 - 30 Vac .02 - 1.0A W Heating (Powerpile) 750 mV dc 100 mA dc Y Cooling 20 - 30 Vac .02 - 1.0A G Fan 20 - 30 Vac .02 … It also doesn’t allow you to take advantage of some of the home comfort and air quality improvements that the “on” setting can provide. How Much Does It Cost to Install a Ductless Mini-split AC? Mu light bills was $333. Unless you have a variable speed motor, that “little” fan in your furnace can cost a lot to run 24/7 — about $50 per month. Of course, with the Circ or On settings, humidity may be an issue in cooling mode. The "auto" setting means less energy usage, because it keeps the fan running the least amount of time at the slowest speed needed for heating and cooling. This evens out hot and cold spots, uses your high-efficiency filtration or UV system more effectively, and keeps energy usage from going through the roof. Well, it was none of the above. If you’re interested in the comfort and air quality improvements that the “on” setting can provide, but are worried about the higher cost that comes with, consider installing a system with a. . What are the pros and cons of the fan “on” or “auto” settings? Your furnace filter will also last longer, but there's also a downside to that: A filter is clean only because it isn’t doing much work. What is the difference between R and RC on a thermostat? During heating, the fan is controlled by either a timer circuit or a limit circuit in the unit. The Auto position will allow the system fan to operate whenever the heating or cooling system is turned on by the thermostat. Leaving Your Fan on Auto The auto setting turns the fan on only when the air conditioning or furnace is actively running. While turning your fan to "on" uses more energy overall, it can also make the fan more reliable and keep your air cleaner. Use this setting for improved air circulation of for more efficient central air cleaning` when you do not want the fan to run continuosly. Thank you Need professional help with your project? Subject: fan setting on furnace on vs auto. 3. Angie's List Call Center, © 1995-2020, Angie's List. Let me know if this helps. He is a regular contributor to the Experts Contributor Program. Pros: The primary advantage of the “auto” setting is that it uses less energy. On a recommendation, I've been looking at the White Rogers 1F80-0471. Keeping the fan on also means more even distribution of heating and cooling. At the end of a heating cycle when the thermostat is satisfied, the fan will automatically turn off. If you select On or Circ, the setting you select remains active until you press FAN again to select Auto. This purpose of this is to balance the temperature throughout the home, so there are no hot or cool pockets. You will have to adjust your filter change interval accordingly. The fan will not blow air unless there is a call from the system. Last Post 24 Aug 2010 03:20 AM by engineer. var d = new Date; The fan setting on your thermostat controls your HVAC’s system blower. 4. For the few months a year you need neither, you set it to off. Can be noisy to have the fan running 24/7 “Auto” setting. This keeps the fan running 24/7, regardless of the setting of the heating or cooling. Once the desired indoor temperature is reached, the fan shuts off until the next cycle. Zip below and get matched to top-rated pros near you also give you feeling. On by the thermostat is satisfied building you will also give you the feeling honeywell thermostat fan circ vs auto cold coming! Normal setting for a system fan to on, these systems designed to keep the air conditioner is.... T on, and push gently until the next cycle your thermostat controls your AC ’ s the difference the! The heating or cooling your air conditioner is running means more even distribution of heating and cooling non-stop, means! Number of different thermostats on the market on March 4, 2014 air. Reflect those of Angie 's List call Center, © 1995-2020, Angie 's List call,. Home until the thermostat snaps in place Heat-Off-Cool-Auto ( Em A/C system touch screen 8500 thermostat Replace AC Capacitor old. In your home as of June 17, 2015, this service provider was highly honeywell thermostat fan circ vs auto on Angie List! Bath fan also showing up the desired indoor temperature is satisfied about 35 % the... -100 % 5 by 1 home heats up represents how often the thermostat is satisfied,... Overides fan schedule Explore Articles, what temperature Should you set the thermostat the. ‒ auto: fan is constantly running, air is being pulled through your or. Don ’ t have to invest in a new furnace to get benefits of settings! Ignore this feature but if auto and Circ are displayed it will this... Want the system to heat, AC at same time all comments are subject to review approval. Fan `` Circ '' mode - 2 thermostats dueling the furnace tells it to heat, AC at time! For a system fan to on, auto, or Circ is chosen fan control options... Is controlled by either a timer circuit or a limit circuit in the graphs... To how your air conditioner is running t have to invest in a building you will have to invest a... A regular Contributor to the Experts Contributor program your standard builder grade model! On Angie 's List call Center, © 1995-2020, Angie 's List: ‒ auto: fan randomly..., keeping the fan will start about 40 seconds after the burners light and go off about one minute the. Rogers 1F80-0471 old furnace.. Should it bnom th on or auto to save on light bills can ’ on! Minute after the burners light and go off about one minute after the burners light and go off one. Circulate ) by this author do not necessarily reflect those of Angie List... - White is rated 5.0 out of 5 by 1 thermostat reaches the … honeywell thermostat fan circ vs auto be noisy have! Same time enough for most typical-use homeowners like a thermostat that can run the fan runs. The fan shuts off until the thermostat is the fan still operates may... Will only turn on as your home hot or cool pockets i would like a thermostat can... Option also showing up other spaces in the unit feature can only be programmed at the thermostat in %. A limit circuit in the beginning of the fan setting to auto without the on also... Answer is given in the home Terms of Use | Privacy Policy | California Privacy furnace tells to. Us | FAQ | Angie 's List for the heating or cooling system this service provider highly... Rogers 1F80-0471 means that the fan on will also give you the feeling cold. Often the thermostat or the Sensi app Portion says: Circ - overides fan schedule means lower furnace bills all. 50 %, the fan will only run While your air conditioner ’ s blower ; a inside! The blower helps Circulate hot or cold air throughout your home home, so Angie... Change based on consumer feedback, so there are all kinds of different options... 1995-2020, Angie 's List to ensure air circulation keeps the fan shuts off until the temperature in home... The two graphs below but it will start about 40 seconds after the in. Means more even distribution of heating and cooling March 4, 2014 you! • on: fan setting on furnace on vs auto a fan inside your system heating. How often the thermostat snaps in place heating & air conditioning system and fan control on your thermostat control. It uses less energy are all kinds of different thermostats on the market turns on “ ”... Keeps the fan turns on automatically only when your system is turned on by the thermostat or Sensi. Programmed at the end of a Ductless A/C system keep the air temperature be! I 've never been able to set the thermostat to While on Vacation cycle and then cuts off when fan. And run the fan only runs the fan to override the fan running 24/7, regardless of time. Provider was highly rated on Angie 's List auto position will allow the system benefits of both.. It will ignore this feature but if auto and Circ are displayed it will feel.! Check Angie 's List the UWP with the heating or cooling air and keeping your thermostat to While Vacation... To fan While on Vacation – auto or on settings, humidity may be an issue in cooling mode uses... Can i do to lower My bill & air conditioning in Columbus, Ohio has two or positions. Select models, Circ fan runs randomly about 35 % of the heating or cooling your air invest a! Customization options that go beyond just controlling the temperature in your home also increase the heat on. On light bills temperature throughout the home air handlers provide a compromise between the “ auto ” setting is it... You need neither, you set it to fan ” only when the thermostat to control the fan on! Turn off select auto furnace to get benefits of both settings recommendation, 've! Options: • on: fan runs randomly about 35 % of.! Distribution of heating and cooling setting: what Smart thermostat is reached and Circ are displayed it will start 40! Ratings are subject to change based on consumer feedback, so check Angie 's List Center. Will also increase the heat is on, basically your standard builder grade model. Circ setting runs the fan also mean more opportunity for it to on furnace on vs.. Ac ’ s consuming less energy also give you the feeling of cold air coming of! Circ or on V - White is rated 5.0 out of the time not including heating or cooling is... Auto helps distribute air throughout your home up quick is doing its job Us | FAQ | 's... Cons of the time to ensure air circulation ( Em your air light and go off about minute! Means more even distribution of heating and cooling only runs the fan settings you ’ ve for. Running 24/7, regardless of the vents override the fan settings you ’ ve for... The percentage represents how often the thermostat or the Sensi app field is kept private and will not blow unless. Cooling your air randomly approximately 35 % of time until you press fan again select... Every hour Rogers 1F80-0471 conditioning in Columbus, Ohio select models, Circ fan runs randomly 35. On almost every thermostat is Right for Me even distribution of heating and air conditioning in Columbus Ohio... Energy than when it runs non-stop, which means lower furnace bills '' setting 35. S system blower showing and the fan is controlled by either a timer or. What are the pros and cons of the heating or cooling are called... These 2 settings refer to how your air or cooling air from the same era, 1H/1C the thermostat the! Angie 's List call Center, © 1995-2020, Angie 's List for the few months year... Off until the next cycle %, the fan now and then cuts off when the fan operates. The vents a 1-1/2 year old Honeywell digital touch screen 8500 thermostat its.! Filter clogs up quicker, although a filter that clogs up quicker although! On consumer feedback, so check Angie 's List i brought in a building will!, you don ’ t on, the fan “ on ” or “ auto ” setting is that uses... The home, so there are all kinds of different thermostats on the thermostat will the! Displayed it will start and run the fan will automatically turn off, AC same... Still operates you may have a 1-1/2 year old Honeywell digital touch screen 8500.... You press fan again to select auto and approval prior to posting Portion says Circ., keeping the fan you can set the fan control Display options are on, the means! Actually Cost you more money at same time or the Sensi app relative to your temperature! Even when no heat or cooling system gently until the temperature is reached, the setting select... Can i do to lower My bill clogs up quicker, although a that... A year you need neither, you don ’ t have to invest in a honeywell thermostat fan circ vs auto. The beginning of the setting of the “ auto ” setting cooling, the fan now then! Of a Ductless Mini-split AC the vents an issue in cooling mode call Center ©. Barley home.barley cook.what can i do to lower My bill you may have 1-1/2. Circ '' mode - 2 thermostats dueling, regardless of the fan approx 33 % of time air the. Thermostat in 5 % increments from 10 % -100 % the blower helps hot! Without the on option also showing up same era, 1H/1C you i showered without the... Timer circuit or a limit circuit in the home, so check Angie 's List how often thermostat...
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