This condenser has cooled and fans to push the air through. Here are just a few … If the heater is working fine, both these hoses will be hot to the touch. Orlando (407) 886-3729. If the condenser is blocked up or damaged, your air conditioner won’t be able to blow cool air. Definitely. 7 Reasons Your Heater Blows Cold Air/AC Blows Hot Air. His work has been featured in Family Handyman, a Reader's Digest book and Classic Bike Rider magazine, among others. If the fan is damaged or cannot run with its full force, it cannot cool … Or worse yet, you come out to start the car one day, turn on the AC and it's blowing barely cold air when it was fine just yesterday. What Happens When Car AC Stopped Blowing Cold Air? A failing AC low pressure hose may cause a lack of cold air from the AC system. Check to make sure the clutch assembly — located at the front end of the AC compressor — is engaging. The compressor is another common cause of auto AC problems. I was able to add some Freon and the cooling system is most definitely getting colder. The most popular service booked by readers of this article is AC is not working Inspection. Lastly, the reason why your car air-conditioning isn’t blowing cold air is because your engine is overheating. Fresh coolant added to the radiator may be all that is needed for the AC to work again. Something is wrong when that does not happen. If there is something wrong with the condenser, the hot air from outside will just blow through the engine and out the AC. You may have a bad A/C compressor if you see the compressor engage but the high and low pressures stay the same. Chevrolet Impala - AC is not working - Newport News, Virginia, Matt was on time and during the discussion with him he showed a great deal of knowledge about my a/c issue. Fortunately, there are things that you can do if your air conditioner is not blowing cold air. Main Causes of Why Is My Car Air Conditioner Not Blowing Cold Air? I don't know what's exactly wrong The common reason behind your car’s air conditioner blowing hot air could either be a bad compressor or a coolant leakage. Its job is to cool the warm refrigerant, and that makes the air cold when it reaches the evaporator. Locating refrigerant leaks can be difficult even for the pros. I appreciate his knowledge and attention to detail with my car. If there’s a restriction somewhere in the system, it blocks it all up and prevents the AC from blowing cold. Make sure to do this every six months. There are many reasons an HVAC (heating, ventilation, air conditioning) system might stop working. So, make sure that you check the compressor as it could be the reason why car AC not blowing cold air after recharge. Whatever the cause, AutoAid’s ASE certified mechanics can find the right … Anyone could have told me its a $1,200 repair and I wouldn’t have known differently. When certain areas of your vehicle fail to function, the problems can sometimes be drastic enough that you’ll have to pull over and receive on-site maintenance. When your air filter has dirt buildup on it, the cold air won’t be able to flow through. Repairs covered by 12-month/12,000-mile warranty. Compressor repairs are not a DIY fix. Thank you Peter! Let’s see what could be the probable reasons for car AC not blowing cold air when idle. Look for oil stains on the condenser (located in front of the radiator), compressor, refrigerant hoses or fittings. Most cars have two fans in front: one for the condenser and the other for the radiator. Both fans should be running even if the car air-conditioning is turned on during a hot summer day. If your AC isn’t blowing cold, it must be serviced by a licensed mechanic certified for HVAC (Heating, Ventilation, and Air Conditioning) work. Highly recommend him, Scion xA - AC is not working Inspection - West Hills, California. The cooling fan in the condenser is the first thing that you should look into while finding out the reason for car air conditioner not blowing cold air when idling. Leaking or Low Refrigerant. If there’s a restriction somewhere in the system, it blocks it all up and prevents the AC from blowing cold. For a more in-depth look at automotive air … You can easily do these 105 super-simple car repairs in your own garage. Typically, air conditioners will blow on cold as low as 28 degrees F but on a really warm day where temperatures soar into the high 90s, the air may only blow as low as 50-60 degrees F. Tip: Ambient (outside) temperature, as well as air flow in general, also plays an important role in the air conditioner working properly. LEARN MORE. The best setting for diagnosis is “fresh air” (not recirculated) with the air blowing out of the center vents in the dash and the AC turned … How to Replace an Air Conditioning Compressor Relay. If the high pressure spikes above 300 or more, then the compressor can produce pressure but... Get a fair & transparent quote instantly before booking. Located outdoors, the AC condenser unit is easily forgettable. If your AC needs frequent recharging, it’s time to visit your repair shop. Fortunately, if the system is low on refrigerant, you can recharge it to regain access to … That ice limits the flow of air into your home. Why tell this story? Every car produces greenhouse gases. If your car heater is suddenly blowing out cold air instead of heat in the middle of a bitterly cold winter, you have a good reason to be frustrated. For a more in-depth look at automotive air conditioning systems, read this How Stuff Works article! These devices use desiccant (like those little packets you find in a box of new shoes) to absorb moisture in the AC system. Air conditioning works by attracting the heat from the air, effectively cooling the air, and … This is the most common reason for a central AC not blowing cold air. On modern cars, there are any number of fuses, pressure/temperature sensors or switches that can keep the AC from turning on. Your car uses coolant – usually made up of 50% antifreeze and 50% water – to cool your engine down, especially during the hot months of summer. That results in no cooling and the need for extensive repairs. Part of the problem is not understanding why the ac is not working. I just had him make the repair, which was done quickly. The disappointing lack of cool air coming through the air conditioning vents prompts you to ask yourself, “Why is my AC not blowing?” The most common causes of an AC not blowing are related to: fan problems; power issues; thermostat problems; clogged filters; blocked registers; dirty coils; ductwork leaks & blockages; system design flaws; Most would agree that no one wants to live or work in an … Recharging the AC system is usually a one-time fix. We recommend our users to update the browser. They have the specialty tools and equipment to accurately diagnose the problem, safely reclaim and recycle refrigerant and make repairs to keep you cool while driving. With the engine running, blower fan on max high and AC controls set to the lowest temperature, the clutch should be spinning. A dirty cabin air filter can lead to poor AC cooling output and is easy to replace yourself. Our latest shed is also a pavilion—and you can build it, too! There is normally a sensing bulb attached to the control that will extend to the front of the evaporator coil, and a set of … If one of the hoses is warm, and the other is not, it signifies a blockage in the heater core, or the presence of trapped air. Why AC blows warm air in car? These include: Low Refrigerant: Low refrigerant will prevent your air conditioner from operating (the clutch won’t kick in and make the compressor cycle if the amount of pressure in the system is off). Check the basics first. A faulty blower fan can make the car ac stopped working suddenly. Occasionally there could be problems with the compressor, but usually, the problem is a slow leak that has caused enough … Why Are My Houseplant Leaves Turning Yellow? Even the engine control module (ECM) can keep the AC from turning on if it senses an overheated engine or other emission systems failure. Because it illustrates just one of many reasons why a heater might blow cold air, and an air conditioner might blow hot air. Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Hand-picked, community-rated professionals, Our mechanics make house calls in over 2,000 cities, Explore nationwide job opportunities for automotive technicians, Trusted mechanics, rated by thousands of happy car owners, Fleet maintenance with certified mobile mechanics, The statements expressed above are only for informational purposes and should be independently verified. My car is a 2001 Honda Civic and recently, the air conditioner hasn't been working properly. So your car's AC was doing fine for the longest time. But we wanted to explain here 5 of the most common reasons why we find that car and truck air conditioning units are not blowing cold air, and the best way to overcome this issue- and get the AC cold again! The heater’s blowing cold, or the AC is blowing hot. Moisture can build up in a system that is leaking and low on refrigerant. Blocked or Broken Condenser: The condenser is where the magic happens in your air conditioner and if it has been blocked up with debris or is damaged, you won’t get cold or even cool air from the system. With the engine running, blower fan on max high and AC controls set to the lowest temperature, the clutch should be spinning. Matt is always so pleasant to work with. A defective condenser fan. There are many components and other systems that can cause warm air to come from the vents. If you come into direct contact with refrigerant, flush with plenty of water and seek medical attention immediately. Check to make sure the radiator cooling fans are running when the AC is on. 2. So why is your car air conditioning not cold? The good news is that there are 3 common reasons for Car Air Conditioning to stop blowing cold air. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. A defective blower fan, engine cooling fans and relays can affect AC system operation and cooling performance. Compressor rattling or banging and drive belt slippage are all symptoms of excessive AC pressure. An AC not blowing cold air is the most common air conditioner problem. #1 Your Car has a Freon Leak. Every editorial product is independently selected, though we may be compensated or receive an affiliate commission if you buy something through our links. 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 temperature control or thermostat. What Sensors in the AC Tell the Car If the System Is Working or Not? Stuck & Blend Air Door Blend air door is the reason for drawing hot air to cold air in your car system. A car heater blowing cold air could be a symptom of the failure of the heating unit.. But all you have to work with are the symptoms. Home Tools, Gear & Equipment Tools & Supplies Automotive Tools & Supplies. 1. We see this a lot here at AutoAid. 1. Bryant was very candid about the problem and offered to show me how to fix the issue if I wanted to do it myself. The Freon was OK when it was only cold on one side and even when it was blowing hot on both sides. I have 2001 Seville sts and when I first got it it was blowing cold air on both sides fine then after a while it started only blowing cold on passenger side and hot on driver side. Other reasons may include: There is not enough pressure in the AC’s compressor for the refrigerant to cool properly. There are several DIY AC system recharging kits available. One of them is that your central AC may stop blowing cold air. There could be various reasons for car heater not working but it basically happens for two reasons: air from the blower is not blow toward the heater core or the coolant does not flow through … I will be scheduling my next visit from him soon. Out-of-spec AC system pressures can help determine if an expansion valve or orifice tube is causing AC problems. No matter it’s your home ac or the car ac, there is a device named condenser in each of them. While there are several potential issues, the most common is low refrigerant. If the clutch is not engaging, AC system refrigerant is either extremely low, there’s an electrical problem, or the clutch itself has failed. Bob and his wife lived through 20 years' worth of DIY home remodeling while parenting two (now grown) boys and now relax by watching their three fabulous granddaughters. It’s also possible that there is a very simple reason your car air conditioning is not cold, and that is electrical. Thank you for your time Peter, Acura RDX - AC is not working - Newport News, Virginia. You should therefore check to see if the condenser is blocked, and if it isn’t blocked, check to see if it is broken. Sometimes people think it’s not blowing cold air when it is, and it is just that it is hot outside. Absolutely! Your car’s air conditioning system also contains a couple of sensors that... Air conditioning is a complex and delicate system. On a hot day, the last thing you want is to walk into your house and discover that your central air conditioner has stopped blowing cold air. When your air filter has dirt buildup on it, the cold air won’t be able to flow through. Delicate system and turns the compressor ’ s compressor for the radiator ), but it does use. On, called short-cycling pressure/temperature sensors or switches that can cause an auto AC problems your! 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