This makes the AC compressor to spin and power the AC system. It's 12 degrees cooler outside than inside currently. There are some relatively common reasons your AC may have stopped working, including: There is hope. The first thing to check if your car air conditioner does not blow cold air is the condenser fan. Slow leaks can cause refrigerant levels to drop over time, which requires a check of the lines, and a recharge of the system in order to get it blowing cold air again. Now, imagine that your car’s air conditioning system suddenly stops blowing cold air; how would you feel? semperg in Lithonia, GA on . Any ideas? If a room is heating or cooling much quicker than other rooms, the airflow can be reduced to that room to even things out, also sending more air to other areas. An air conditioner that isn’t blowing cold air, in Florida. By having a professional technician perform annual inspections and staying on top of any maintenance issues, you can help to avoid any potential AC outages. The most common causes when car AC is not blowing cold air are an empty AC system, faulty air compressor, faulty AC pressure switch, and a clogged cabin filter. When your air filter has dirt buildup on it, the cold air won’t be able to flow through. Terminology. Usually, the 3 main reasons your AC won’t blow cold air after a power outage include: A tripped circuit breaker; If you want to know more, you can read our article Why should I replace my Cabin Air filter. If no air is coming through your supply vents and the AC unit isn’t working at all, follow these steps: 1) Check your thermostat temperature — Make sure you’ve set the temperature setting at least 5 degrees below your room temperature. Air conditioners require large surges of power, and your unit might have blown a fuse or tripped a breaker. Power outages can wreak havoc on HVAC systems if they are not properly configured with your home's electrical needs. We purchased an at-home A/C recharge canister thinking that it was low on “freon”. Only let a certified workshop with the proper equipment do work to your AC system. You’re standing there pushing buttons trying to heat up the house, but it’s just not working. By continuing to use this site you consent to the use of cookies on your device as described … nest thermostat’s issue with furnace & air conditioning technicians The Nest Learning thermostat is the sexiest item to be introduced into the HVAC industry in recent years. If you notice that your AC is working at higher speeds but not lower, there could definitely be a problem with the condenser fan.  =  This is the most common reason for a central AC not blowing cold air. Compressor fan is … Air Conditioning and Cooling Systems - AC Not Blowing Cold Air: Compressor Fan Running Fine - Hi all, AC system is 8 years old and stopped blowing cold air. I started this blog because I was tired of finding false information out there on the web. To check if the capacitor is behind your condenser issue, turn on your AC unit. If you haven’t been regularly checking and changing your air filter, it’s most likely extremely clogged. Fixing some issues on your own remains an option. If your thermostat is set to Fan, it may be constantly running, but the air conditioner is not cooling to the preferred set temperature. We have a 2006 Corvette. An upgrade makes a wise investment in certain circumstances, such as: As with all things in life, the old adage “an ounce of prevention is worth a pound of cure” is true when it comes to your air condition system as well. Torrington 2) Check your air filter — If the air coming out of the supply vents is weak and not very cool, check to see if the air filter is dirty and change it if necessary. Damaged Air Ducts The duct system in the attic is used to transport cleaned and conditioned air back into the home. The filter catches all the dust and impurities that enter the passenger compartment and can, therefore, become clogged over time. I am going to check the fuse for the A/C but I am unsure which fuse it is. When was the last time you changed your air filters? 5 Reasons Your AC Is Running but Not Blowing Cold Air 1. Thankfully, replacing your thermostat is a DIY project, even if you have a smart thermostat like the ones from Nest. Imagine driving peacefully on a bright sunny morning, listening to your favorite music, and enjoying the scenery around you. You can replace this clutch in many AC compressors or even remove shims for the clutch for it to work a little bit more. Stamford If the pressure gets too high – it will stop the AC compressor from cooling the system anymore because of safety reasons. Lack of Refrigerant– Your Tundra’s air conditioner will not work if the refrigerant has disappeared due to a leak. Greenwich The AC system should always be leak checked before a refill. Always ensure the unit is shut off before beginning any work. Nest thermostat turns ON AC instead of heat This problem could be mainly because of the wrong wiring connection. Here is a more detailed list of the most common causes of a car AC not blowing cold air. Popular Answer. Unit is still blowing hot air after 5 minutes of operation. Clogged Air Filters. Air is blowing, outside compressor is running, but house hasn't cooled a single degree even after running for several hours. It blows cold air when the heat is on. If your AC isn’t working properly, it’s important to know the cause. Faulty Heat Controller / Air Condition Control Unit, AC Compressor Clutch Symptoms & Replacement Cost, AC Condenser Fan Symptoms, Function & Replacement Cost, 7 Causes Why Car Temperature Gauge Stays on Cold, Alternator Not Charging - 6 Causes & Diagnostics. If this fan fails, there might be a problem with the AC system at lower speeds. Fan blows strong but air coming out is not cold at all on max AC. It happens because of the laws of thermodynamics. Ice buildup. The last couple of seasons it was cold. Air conditioners remove moisture from the air, with the water typically draining out a hose or drain pipe which can become clogged with algae, ultimately causing the unit to shut down. Nest Thermostat not blowing cold air - Answered by a verified HVAC Technician We use cookies to give you the best possible experience on our website. Any input would be gladly appreciated. For example, upgrading to a new system makes sense for a more reliable model. Some units have overload switches built-in, so make sure you check this as well. Answer. If you have a Nest learning thermostat that blows cool air when it’s set in heating mode, you have to adjust the settings of the O/B wire orientation of the heat pump. The main issues that occur with the car’s air conditioning system are due to poor maintenance. This can cause your heater to blow cold air due to improper temperature inputs from the thermostat. While some homeowners handle compressor cleaning, enlist professional help for the best results. The serpentine belt powers the air compressor pulley, and when you activate the AC – the clutch is connecting the air compressor to the pulley. Here’s a quick rundown of the issue. If some rooms can't keep up with others and the airflow isn't as noticeable, make sure the air vents are fully opened. Try turning the dial down all the way, or pushing the buttons to the lowest setting and see if that trips the unit to run. Common Reasons: This may have the easiest solution to your AC not blowing cold air. When I turn it on the water flow is good, the air intake is fine. Farmington You might not think your filter contributes to your AC not blowing cold air, but it does. New Haven Seems silly, but you’d be surprised how often this has happened. June 11, 2010. Air conditioners work by compressing a fluid refrigerant, causing it to move between two sets of metal coils.Air is drawn across the cold coils (the evaporator coils) and then blown back into the home through a series of ducts and dampers. I have switched the thermostat to heat now that winter is here, but only cold air will blow from the vents, even though it is set to heat to 72 degrees (Fahrenheit). Why Your Car AC Is Not Blowing Cold Air. Thanks An air conditioner not blowing cold air is one of the most common HVAC problems we get here in Florida. 6 Reasons Why Your Car Air Conditioner is Not Blowing Cold Air. The AC compressor pumps refrigerant around in the AC system for it to cool properly. Is your air conditioner not blowing any air? Why Is My Air Conditioning Working Upstairs, But Not Downstairs: The Short Answer. ... 2009 lincoln navigator only blowing cold air on passenger side. If that doesn’t get the unit blowing cold air again, it could be refrigerant levels are low (see below). AC Not Blowing Cold Air. Learn 6 reasons why your AC isn't blowing cold air and what to do about it. Middletown Home » Air Condition » 9 Causes of Car AC is Not Blowing Cold Air, In Air condition by Magnus SellénJanuary 13, 20214 Comments. You can also go to our homepage and search for your car problem by using the button below. Go to duct and put your hand in front to feel the hot air coming out. Remember that you can’t just go walking around or you risk putting your leg through the roof. When in doubt, enlist the help of a qualified professional rather than risk damaging your system further by attempting DIY repair. Here is a more detailed list of the most common causes of a car AC not blowing cold air. Any problem in your car that has to do with air conditioning can be very distressing, especially if you live in a hot country. Plus, address any problems as soon as possible. I have been working with cars for 10 years, specialized in diagnostics and troubleshooting. If you feel that there is a meager amount of air blowing through the vents, it could absolutely be a clogged air filter. If your thermostat is set to Fan, it may be constantly running, but the air conditioner is not cooling to the preferred set temperature. If the fan is damaged and does not operate at full power, it … Hi, I am troubleshooting a nest thermostat that is blowing cool/cold air when it's supposed to be heating. The most common causes when car AC is not blowing cold air are an empty AC system, faulty air compressor, faulty AC pressure switch, and a clogged cabin filter.  −  Once it is connected, with the A/C on high and car doors open, when you push the trigger to recharge, the gauge immediately maxes out. Wallingford Heating & Air Conditioning Contractor. Contrary to popular belief, coolant doesn’t go bad or deplete; a common reason for a lack of cold air is often a refrigerant leak. A dirty air filter reduces airflow into your AC. I have a parts warranty with the company that did the installation but it costs $90 just for them to come out plus I would have to come up with the labor money. I have read on other site similar problems . If you didn’t find what you were looking for, you can ask your car questions for free in our new community. Haddam Though the AC not blowing isn’t exactly the issue, ... ducts can become clogged by birds, insects and other small creatures building nests… When your air conditioner is working but not cooling, there’s a good chance that you… Had my first issue on my 2017 Touring. Remember, the “auto” function only utilizes the fan when air is being heated or cooled. West Hartford, Harwinton It is recommended to check and clean the cabin air filter frequently. There is good air flow through the vents, but no cold air. A: It’s the last thing you want on a sweltering summer’s day—a central air conditioning system that’s not blowing cold air. If you check and find that the switch has tripped, it must be reset after the condenser drainpipe has been cleaned. If you’ve been having problems sleeping during the summer because it’s too hot upstairs, you’re not alone. A cabin air filter is responsible for filtering the air that enters the vehicle’s air conditioning system. Few things are worse than a malfunctioning air conditioning system in the sweltering summer heat. An air conditioner that isn’t blowing cold air, in Florida. All AC units have an air filter which you can see from outside. If you haven’t refilled it in 6-7 years, it is definitely time for a refill, and if it was more recently you filled it, it is time to check for any leaks. Without getting too detailed, a dirty air filter makes it hard for air to enter into your AC system, which means you’ll be feeling low airflow. What’s worse than an air conditioner that doesn’t work at all? Norwalk If your air conditioner is not blowing cold air and you have inspected the air filter and fan motor and found them okay, then you may have a problem with the thermistor. Killingworth This refrigerant system is of high pressure, and it can reach 15 bars when the car is running. If your air conditioner is too powerful, it will cycle on and off more frequently and not stay on long enough to remove humidity from the air. Schedule Service. Because a broken air conditioning unit is not only an inconvenience, but possibly a major health concern if temperatures soar. Contact Support at 1-855-733-5465 to find a pro-installer in your area. Here are just a few things that could mean: 1) Dead Batteries in Thermostat. The condenser needs wind through it to remove the heat properly. This part is called the blend door actuator inside your car, and it is controlling a flap that is redirecting hot or cold air inside of your car. When you turn the heat controller on the AC control unit, there needs to be something that controls the heat inside the car. Whatever the cause of your AC’s malfunction may be, it should be addressed as soon as possible in order to prevent additional damage to the AC unit and possibly even the ductwork in your home. 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