This is supposed to be more energy-efficient. Originally Answered: Should I switch the central AC fan to auto or on and why ? Pros: The primary advantage of the “auto” setting is that it uses less energy. If your fan runs continuously, moisture does not have a chance to drip outside. When it is set on “auto”, the fan turns on ONLY when your system is running. The fan will start about 40 seconds after the burners light and go off about one minute after the temperature is satisfied. 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. The fan would use slightly more energy than when running on low however the actual AC compressor uses vastly more energy than the fan. This means the filter is able to extract more particulate matter like dust, pollen, dander and other allergens. 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. Should Your Thermostat Fan Be On Or Auto What S Right For. Instead, homeowners should choose the "auto" option, or if homeowners choose to run the fan, they should do it for just a few minutes after the cooling part of the unit shuts off. It may cost you more money to run your fan nonstop. 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. The Pros And Cons Of Continuously Running Your Hvac Fan. Save electricity and keep the FAN setting at “AUTO”. We’ve provided pros and cons of each setting option, so you can decide which one is best for you. What AUTO and ON mean. The blower motor fan may wear out faster due to more frequent starts and stops. The short answer is to keep the fan on “Auto”. You’ll need to replace your furnace filter more frequently. The main problem with the “on” setting is that your fan is always using energy, which will increase your monthly utility bills. There are two settings on your thermostat to control the fan – auto or on. Don T Set Your Air Conditioner Thermostat Like This. Did you know that many of the most common causes of a home heating system breakdown is preventable? The AC unit uses the vast majority of energy from your home each month. If you can tolerate most of the summer heat – save for the absolute hottest of days – you'll want to use the AUTO setting. Air is continually being cleaned causing filters to get dirty more quickly. The fan setting on your thermostat controls your HVAC’s system blower. Additionally, when should the cooling fan come on? Commercial  |  Allowing the fan to run uninterrupted, there is a more even distribution of warm or cool air circulating through your home. At Homesense owner Brian’s home, he has it set ON all day because he has young children that are home and he has allergies, so the improved comfort and air quality are benefits that outweigh the costs. The fan can use just as much as your refrigerator if you are using it all the time. In air conditioner auto mode designed to save energy and blow ur air as per temp desired temperature deman. For air circulation, it’s better to rely on ceiling fans in individual rooms while they are occupied. This is not needed to run the AC or HEAT. 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. When the thermostat reaches your temperature setting, the system, including the blower fan, shuts off. Once the. 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. In more humid climates, running the fan "on" can cause the humidity in the home to rise to a point your uncomfortable at any temperature and/or experience a damp dungeon for a home. Cooling  |  Have questions or need service on your HVAC system? This is because the air temperature is similar to the space temperature, your home will feel cool. 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. document.write(y); Once the thermostat reaches the desired temperature, the entire system shuts off until the next cycle. Combat Airborne Viruses Using Plasma Air Ionization Systems, Indoor Air Quality Products Available for your Home to Eliminate the Virus that Causes COVID-19. In the winter, you may notice cool air coming out of your vents. If the fan is set to on, the energy will start to rack up and you will notice a change in your energy usage and bill. Although the "on" setting may waste energy when left in that mode, it can be a useful setting for when you need to flush air out of your home, such as after accidentally burning something in the kitchen. When the thermostat reaches your temperature setting, the system, including the blower fan, shuts off. It blows back into your home and your AC works hard to remove extra moisture from the air. You may notice that there is less even distribution of hot or cool air. Because the fan only runs when your home is in a heating or cooling cycle, there are times … Your air filters will also last longer this way. 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. Heating  |  Difference Between On And Auto Ac Settings Ok Heating. Fluctuating to achieve a consistent temperature all day is far more taxing for your system. When it comes to air filtration, ON has the upper hand. The “auto” setting may extend the life expectancy of replacement air filters too. The “auto” setting. This form needs Javascript to display, which your browser doesn't support. When … “AUTO” Setting: Your AC fan shuts off with the rest of the cooling system as soon as it reaches the temperature on your thermostat. I'd say a 5K BTU offers just that but at an ideal indoor/outdoor temperatures. Choosing Between “On” and “Auto” Some homeowners choose the “on” option instead of “auto” to simply sustain air circulation. 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. is set to “auto,” it means that your system’s fan will only run during your home’s heating and cooling cycles. 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 … Your HVAC system many now need to run more to offset the additional heat. Once the AC cools your home down to the temperature you’ve set, then both the AC and the fan will … Once the air temperature reaches the temperature on your thermostat, the fan stops moving air throughout your home. 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 auto setting turns the fan on only when the air conditioning or furnace is actively running. The fan setting controls when this blower is on. May 21, 2018 Bryan Orr 4 Comments. ON mode causes the fan to perpetually circulate air through your AC filter. ON means that the fan is constantly on and blowing air when your HVAC system is not heating or cooling air. When your fan is constantly running, air is always cycling through. During heating, the fan is controlled by either a timer circuit or a limit circuit in the unit. 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 auto setting is energy efficient and may be enough for most typical-use homeowners. Setting the FAN to “ON” is not needed to run the AC or HEAT. This means it’s consuming less energy than when it runs non-stop, which means lower furnace bills. 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. On the other hand, if your fan is set to Auto, that means that the fan will only come on when the AC does. 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. 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. Energy-efficient ceiling fans, for example, use as little as 30 watts and provide a continuous flow of air … 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. I never really thought of any of the negative impacts that could happen. This will help reduce hot or cold spots within your home. One option found on almost every thermostat is the fan “on” or “auto” switch. Variable speed air handlers provide a compromise between the “on” and “auto” settings. var y = d.getFullYear(); 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. 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. Keeping your fan on AUTO is the most energy-efficient option. Fan On or Fan Auto. There is better dehumidification in your home during the summer months. About  |  Leave the fan on “auto” when possible. There could be reduced stress on the fan from less frequent starts and stops, which could potentially help extend its lifespan. Pics of : Should Ac Fan Be On Auto Or On. 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. 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! Should I Use My Thermostat’s “On” or “Auto” Setting? Continuously moving air helps keep the indoor environment from stagnating, but there are more effective and efficient ways to move air than a 300-watt A/C blower fan. Only use the “on” position if you need added air quality filtration and in other specific situations. A clogged filter also makes your blower work hard and use more energy. The fan speed can be set to "High," "Low," or "Auto." Before we can answer the question of whether you should set your air conditioner’s fan to Auto or On, we first need to clarify what each of those settings does. Set the fan to the “auto” position whenever the compressor is running, and the outside air is too hot. This Thermostat Setting Will Leave Your Home Miserably Humid. The fan only runs when the system is on and not continuously. You’ll need to replace your furnace filter more often as air is constantly being blown through it. In a dry climate, you can run the fan "on" with little problems in the gain of humidity. 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. On auto, your energy bills may not fluctuate as much from month to month, and you may not experience the same level of comfort as you might if the 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. Whereas, our other owner Jesse, sets his home to … Once the thermostat reaches the desired temperature, the entire system shuts off until the next cycle. You can adjust the temperature by changing the setting on the thermostat and the air … Most HVACs have an option for the fan in ‘auto’ or ‘on’ positions. The downside is that your fan motor uses electricity. 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