Ac fan set to auto or on what is best thermostat fan be on or auto auto ac settings a c fan on or auto which uses less. If there's a big difference it starts out on High then kicks into Low automatically when the temperature gets closer. Put simply, if you’re keeping your air conditioning system on at all times (even when you’re not home) you’re not using your AC as efficiently as possible. The blower helps circulate hot or cold air throughout your home until the temperature on the thermostat is reached. During heating, the fan is controlled by either a timer circuit or a limit circuit in the unit. When the switch is set to “ON” the air handler fan motor will run constantly-24/7. Once the thermostat reaches the desired temperature, the entire system shuts off until the next cycle. Fan On or Fan Auto. Commercial  |  Your air filters will also last longer this way. Because the fan only runs when your home is in a heating or cooling cycle, there are times … On the other hand, if your fan is set to Auto, that means that the fan will only come on when the AC does. Whereas, our other owner Jesse, sets his home to … Animated Video created using Animaker - https://www.animaker.com In this video, we will see why you should not use the fan while the AC is running. Choosing Between “On” and “Auto” Some homeowners choose the “on” option instead of “auto” to simply sustain air circulation. AUTO means that the fan turns on automatically only when your system is heating or cooling air. AUTO means that the fan turns on automatically only when your system is heating or cooling air. Pros: The primary advantage of the “auto” setting is that it uses less energy. This means it’s consuming less energy than when it runs non-stop, which means lower furnace bills. Once the air temperature reaches the temperature on your thermostat, the fan stops moving air throughout your home. ON means that the fan is constantly on and blowing air when your HVAC system is not heating or cooling air. Running your fan on AUTO … You can adjust the temperature by changing the setting on the thermostat and the air … In a dry climate, you can run the fan "on" with little problems in the gain of humidity. The auto setting is energy efficient and may be enough for most typical-use homeowners. The fan only runs when the system is on and not continuously. Air is continually being cleaned causing filters to get dirty more quickly. Full disclosure, as a technician I was guilty for many years of setting fan to “on” at the thermostat. The fan setting either auto, on or circulate all do different things. Ceiling fans. Should Your Thermostat Fan Be On Or Auto What S Right For. Auto helps distribute air in the beginning of the cooling or heating cycle and then cuts off when the set temperature is reached. The only downside, besides those discussed in above, is that you will need t… The “auto” setting may extend the life expectancy of replacement air filters too. I'd say a 5K BTU offers just that but at an ideal indoor/outdoor temperatures. Originally Answered: Should I switch the central AC fan to auto or on and why ? One option found on almost every thermostat is the fan “on” or “auto” switch. Difference Between On And Auto Ac Settings Ok Heating. The blower motor fan may wear out faster due to more frequent starts and stops. Thermostats come with a number of different customization options that go beyond just controlling the temperature in your home. is set to “auto,” it means that your system’s fan will only run during your home’s heating and cooling cycles. Pics of : Should Ac Fan Be On Auto Or On. If anything, the water will evaporate into the ductwork and then be blown into the building the next time the fan cycles on. We’ve provided pros and cons of each setting option, so you can decide which one is best for you. How to Know the Difference Between the Fan and Auto Options on a Honeywell Thermostat Air Conditioning Unit. Setting the fan on "auto" The fan only runs when the furnace tells it to.  Lic #906115 | Certified Comfort Systems, Inc. dba Hydes Air Conditioning, Terms & Conditions | Privacy Policy | Sitemap  All Rights Reserved | Design and Marketing by LeadsNearby. The main reason why you wanna turn the fan to ON instead of AUTO in a centralized HVAC is because the room temperature will be more stable and evenly distributed to all the rooms even when the cooling or heating function is at rest. In the winter, you may notice cool air coming out of your vents. A clogged filter also makes your blower work hard and use more energy. Once the. Have questions or need service on your HVAC system? Although it may seem sensible to believe your system will use extra energy to power itself on, this just isn’t the case. You’ll need to replace your furnace filter more often as air is constantly being blown through it. Additionally, when should the cooling fan come on? Thermostat fan “on” or “auto” setting: what’s the difference between the two? It may cost you more money to run your fan nonstop. According to Florida Power & Light, a fan switched to “ON” will cycle 200 hours more per month than a fan switched to “AUTO.” Another benefit of keeping your fan on “AUTO” is that your AC is less likely to freeze up. You’ll need to replace your furnace filter more frequently. There are two settings on your thermostat to control the fan – auto or on. Did you know that many of the most common causes of a home heating system breakdown is preventable? This Thermostat Setting Will Leave Your Home Miserably Humid. Most HVACs have an option for the fan in ‘auto’ or ‘on’ positions. Allowing the fan to run uninterrupted, there is a more even distribution of warm or cool air circulating through your home. Once the desired indoor temperature is reached, the fan shuts off until the next cycle. AUTO means the fan turns on “automatically” ONLY when your system is heating or cooling your air. Running your fan on AUTO or ON is a personal preference. Avoid leaving the fan “on” if you plan to leave the house. Keeping your fan on AUTO is the most energy-efficient option. The AC fan kicks in when needed and stops running when the job is done. This will help reduce hot or cold spots within your home. Once the thermostat reaches the desired temperature, the entire system shuts off until the next cycle. The fan will start about 40 seconds after the burners light and go off about one minute after the temperature is satisfied. I wanted to circulate the air, and to keep air moving through the high efficiency air filter that most of our houses had. 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. This form needs Javascript to display, which your browser doesn't support. If your fan is set to On, that means the fan going to stay on all the time, whether the AC is running or not. There is better dehumidification in your home during the summer months. You may notice that there is less even distribution of hot or cool air. Don T Set Your Air Conditioner Thermostat Like This. Replacing Your Furnace & Heating System in the Coachella Valley It’s a big investment and a big decision, so how do you know when it’s time... © The only benefit from running it constantly would be that air passing thru the filter is be clean, and this helps if you have allergies or asthma problems. The primary advantage of the “auto” setting is that it uses less energy. Keep the thermostat set to “AUTO” FAN so it is not constantly running. What AUTO and ON mean. document.write(y); 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, Prevent HVAC Breakdown this Winter - Coachella Valley, Top Reasons To Consider Furnace Replacement. Hold Fan Or Auto Set Your Thermostat To Save Money … The fan setting controls your AC’s blower; A fan inside your system that helps distribute air throughout your home. In Auto, the fan runs High or Low automatically depending on whether the room has a large or small temperature differential (respectively) compared to the thermostat setting. 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. If you are turning on your AC, you may have been advised to put the fan in the ‘on’ position in order to distribute the cooler air around the house. Cooling  |  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. 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. When keeping your air conditioner fan on or auto, there’s no boilerplate recommendation that we make to home owners, because everyone has different needs. var y = d.getFullYear(); When it is set on “auto”, the fan turns on ONLY when your system is running. 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. When the thermostat reaches your temperature setting, the system, including the blower fan, shuts off. ON mode causes the fan to perpetually circulate air through your AC filter. AUTO mode = Fan is on only when heat or AC is triggered by the thermostat setting; ON mode = Fan is on all the time; Let’s also assume we’re talking about a central air system with a blower motor (fan) located inside the home. Setting your air conditioner fan to “auto” actually helps decrease humidity because it gives condensation a chance to drain instead of sending it back into the home. Fluctuating to achieve a consistent temperature all day is far more taxing for your system. is reached, the fan shuts off until the next cycle. If your fan runs continuously, moisture does not have a chance to drip outside. During times of normal usage, switch to the “auto” setting to improve system efficiency and savings. There could be reduced stress on the fan from less frequent starts and stops, which could potentially help extend its lifespan. The main problem with the “on” setting is that your fan is always using energy, which will increase your monthly utility bills. About  |  Setting the FAN to “ON” is not needed to run the AC or HEAT. 3. The fan speed can be set to "High," "Low," or "Auto." var d = new Date; Only use the “on” position if you need added air quality filtration and in other specific situations. This is the most energy efficient option. The fan setting controls when this blower is on. What are the pros and cons of the fan “on” or “auto” settings? 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