Because the evaporator is usually tucked up under the instrument panel, your mechanic will have to figure out if the evaporator is the culprit. Air Conditioner – If your car’s air conditioner stops working on a hot day, then the ride to your destination can be quite uncomfortable. If all looks good on the power front and your AC is still not blowing cold air, it could be that the thermostat on your unit isn’t set at an appropriate temperature. How to Fix It When Your Car Heater Isn't Working These instructions will help you diagnose and fix a car heating system that only blows cold air. You might not think your filter contributes to your AC not blowing cold air, but it does. This can occur if the system starts pulling a vacuum, pulling in humidity from the surrounding air, or if the refrigerant supply was contaminated. With the engine running, blower fan on max high and AC controls set to the lowest temperature, the clutch should be spinning. This is the device that monitors the incoming air temperature and turns the compressor on or off. Thank you so much, Dodge Grand Caravan - AC is not working - Boynton Beach, Florida, Jeremy is a very nice guy, immediately gets to work and resolve the issues. This is the most common reason for why your car’s AC is not blowing cold air. 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). News | Blog. All prices and links were current as of publication. Why is my car air conditioner not blowing cold air . 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. Occasionally there could be problems with the compressor, but usually, the problem is a slow leak that has caused enough … The good news is that there are 3 common reasons for Car Air Conditioning to stop blowing cold air. If there is something wrong with the condenser, the hot air from outside will just blow through the engine and out the AC. His work has been featured in Family Handyman, a Reader's Digest book and Classic Bike Rider magazine, among others. This is the most common reason for a central AC not blowing cold air. Both fans should be running even if the car air-conditioning is turned on during a hot summer day. 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. #1 Your Car has a Freon Leak. On modern cars, there are any number of fuses, pressure/temperature sensors or switches that can keep the AC from turning on. Low refrigerant can stem from a number of things, including leaks and failed components. Main Causes of Why Is My Car Air Conditioner Not Blowing Cold Air? (See right image.) If there’s a restriction somewhere in the system, it blocks it all up and prevents the AC from blowing cold. But all you have to work with are the symptoms. 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. Low Refrigerant/ Gas. A clogged filter will restrict air flow into your home. A ride can be even more uncomfortable if you are stuck in traffic. This process creates cold air that is directed inside your … Therefore, it is possible that your car is low on refrigerant that is preventing your air conditioning from working properly. If the heater is working fine, both these hoses will be hot to the touch. Here are the top reasons why your car’s air conditioning might have stopped working and how to return to a comfortable interior temperature as quickly as possible. Here is a more detailed list of the most common causes of a car AC not blowing cold air. Why Are My Houseplant Leaves Turning Yellow? Repairs covered by 12-month/12,000-mile warranty. This is the most common reason your car or truck ac is not working. The compressor is another common cause of auto AC problems. 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. Air conditioning works by attracting the heat from the air, effectively cooling the air, and then blowing this cold air into your car. The warm air is blown directly from the motor if the blend door isn’t working adequately. If you notice a strange odor when using the AC, it usually indicates the evaporator is leaking refrigerant. There are many reasons an HVAC (heating, ventilation, air conditioning) system might stop working. Located outdoors, the AC condenser unit is easily forgettable. If the heater is broken because it's not blowing any air, it's likely due to a faulty blower motor or electrical connection. The The average car today contains a bewildering range of sensors that feed information to various computers to monitor everything from air intake to emissions and engine timing. 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. AC Repair; AC Replacement; AC … 1. Definitely no BS from him. You will know if the evaporator coil is frozen if the refrigerant line outside is also covered in ice. It’s also possible that there is a very simple reason your car air conditioning is not cold, and that is electrical. Low Refrigerant/ Gas. We are no longer supporting IE (Internet Explorer), ten car problems you can easily fix yourself, about the freon phaseout (and why you should care), 105 super-simple car repairs in your own garage. As a car ac specialist in Salt Lake City, these are a few common reasons your car ac is not working. If the condenser is blocked up or damaged, your air conditioner won’t be able to blow cool air. … Part of the problem is not understanding why the ac is not working. Ford Expedition - AC is not working - Indianapolis, Indiana. 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. Some testing on the remote control can quickly resolve issues with incorrect settings. Most likely it’s low on gas. There are too many variables to guess. Use Bryant if you want honesty and great work. There are a variety of reasons why your car AC is not blowing cold air. If you haven’t been regularly checking and changing your air filter, it’s most likely extremely clogged. If the condenser is blocked by debris or is damaged, the refrigerant will not flow. Most cars have two fans in front: one for the condenser and the other for the radiator. So are you wondering why your car AC is not blowing cold air? Freon is a type of refrigerant. Leaking or low refrigerant is the most common reason you might have an issue with a car A/C not blowing cold air. Its job is to cool the warm refrigerant, and that makes the air cold when it reaches the evaporator. During the winter when you crank up your heat, the coolant is brought over from the engine to the heater core that then blows warm air into your car. Because it illustrates just one of many reasons why a heater might blow cold air, and an air conditioner might blow hot air. I will be scheduling my next visit from him soon. When your air filter has dirt buildup on it, the cold air won’t be able to flow through. Running the AC 10 minutes a week, even in the winter, helps circulate refrigerant oil and lubricate the compressor and condition O-rings and seals. And that eventually cools the refrigerant. There are also more complex problems that may … As with your home’s air conditioning system, your vehicle’s AC uses refrigerant to cool the air blowing through the vents, but it doesn’t get low without cause. 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. It’s that specific unit in your car that retains the refrigerant cold … This door is located in the vent system. While there are several potential issues, the most common is low refrigerant. Definitely. Bottom line, Bryant does what’s right and is honest about what the problem is. They can be caused by normal wear and tear, or actual damage or malfunctioning parts. This condenser has cooled and fans to push the air through. Low coolant will stop the operation of the air conditioner (the clutch does not kick in and will allow the compressor work if the voltage in the machine is off). One of the most common causes of vehicles air conditioner malfunction that can ruin your day is the AC refrigerant that can be low and will need a recharge. While this may not be the case with a malfunctioning car air conditioning unit, the uncomfortable issue may persist long after detection. A faulty blower fan can make the car ac stopped working suddenly. Unreliable car heaters can make the cold winter months practically unbearable. This can also sometimes be the result of an electrical fault in the compressor’s circuit or clutch. Having your car serviced regularly can help to ensure you don’t encounter the following issues. If your AC needs frequent recharging, it’s time to visit your repair shop. Several things can potentially go wrong with automotive heaters because, much like a home heating system, there are many components working together to heat your car. Unfortunately, air conditioning manuals are often not to descriptive in their … If you do need to “recharge,” as we call it, your refrigerant, there is an underlying problem that needs … There is a clog or block in the system allowing the high-pressure refrigerant to slowly decompress through the clog. Check to make sure the clutch assembly — located at the front end of the AC compressor — is engaging. The air is blowing from the vents and it is cool air, not hot air, but its not blowing enough cold air to lower the temperature inside the car. Your car’s air conditioning system also contains a couple of sensors that... Air conditioning is a complex and delicate system. Lastly, the reason why your car air-conditioning isn’t blowing cold air is because your engine is overheating. 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 … Sometimes people think it’s not blowing cold air when it is, and it is just that it is hot outside. When you turn on the air conditioner in your car, you expect to receive a flow of fresh, cold air. There might be several reasons AC blows warm air inside the car, based on the above explanation. Anyone could have told me its a $1,200 repair and I wouldn’t have known differently. If one or … Thank you for sharing what we need to do if the air conditioner isn't blowing cold air. Always make sure that both fans are running at designated speeds. Use your garden hose to flush the condenser and radiator fins. Second time using Bryant and he was, in both instances, able to diagnose and locate the problem. Leaking or Low Refrigerant. Although an automotive AC system has few moving parts, diagnosing why your car is blowing warm air can be tricky. You don’t need to tolerate a stuffy, uncomfortable car, and you don’t need to rely on the shop to fix the problem either. Mercedes-Benz ML500 - AC is not working Inspection - Reseda, California, Peter took his Time to check out and diagnose my vehicles problem. Please see our, Toyota Tundra - AC is not working - West Palm Beach, Florida, Jeremy was awesome. Sometimes, the coil may get dirty and stay out of order. No matter it’s your home ac or the car ac, there is a device named condenser in each of them. One of them is that your central AC may stop blowing cold air. The Freon was OK when it was only cold on one side and even when it was blowing hot on both sides. Although an automotive AC system has few moving parts, diagnosing why your car is blowing warm air can be tricky. If the pressure drops along the way, the exchange from high pressure to low pressure, it’s not properly done. While there are several potential issues, the most common is low refrigerant. Both fans(AC CONDENSER and radiator fan turn on). So, ensure that you check the compressor as it could be why car A/C is not blowing cold air after recharge; Blend air door – Blend air door is the cause for drawing hot air to cold air in your vehicle system. If your air is blowing cool but not cold, the problem could be a clogged filter, cooling fan problem, radiator trouble, or it could simply be that you need to recharge your AC. There are many reasons why your AC isn’t cooling off your home. The solution could be as easy as flipping a switch on your thermostat, cleaning a dirty air filter, or clearing debris away from the outdoor unit. Out-of-spec AC system pressures can help determine if an expansion valve or orifice tube is causing AC problems. Fast, free online quotes for your car repair. You … A broken condenser is another real cause for which your car AC might not operate properly. Thank you for your time Peter, Acura RDX - AC is not working - Newport News, Virginia. 2. If both the hoses … Maybe it is, but it is scorching outside so it doesn’t seem as cold as you would like it. All you have to do is find out more about your local and reputable service center. Get a kit that matches the type of refrigerant in your vehicle and includes a gauge to test system pressure before adding refrigerant. For a more in-depth look at automotive air conditioning systems, read this How Stuff Works article! Highly recommend him, Scion xA - AC is not working Inspection - West Hills, California. Car AC not blowing cold air can be the result of a small minor problem or a big one that may have to be check with a mechanic. The level of refrigerant in your system decreases naturally over time (very, very slowly), but leaks can also occur. I was able to add some Freon and the cooling system is most definitely getting colder. Now it's hot on both. Vehicle needs to be recharged; There’s a Freon leak; The AC compressor may not be engaging If your AC isn’t blowing cold, it must be serviced by a licensed mechanic certified for HVAC (Heating, Ventilation, and Air Conditioning) work. I checked the refrigerant pressure with the engine on/ac on high and it falls into the “full” level. Time To Replace The Refrigerant. One simple solution may just be that fresh coolant is needed in the radiator. #1 Your Car has a Freon Leak. A defective condenser fan. An air conditioner not blowing cold air is one of the most common HVAC problems we get here in Florida. You may hear a slight “click” or change in engine speed when the clutch engages. What Happens When Car AC Stopped Blowing Cold Air? The compressor is another common cause of auto AC problems. Could it be so hot outside that the AC cannot get down to the set temperature? Car not overheating..PLEASE advise, Thanks Gail. However, this issue is usually caused by a few different problems within the AC itself. We recommend our users to update the browser. Here are the common causes an AC system is not blowing cold air. Then, gradually, you began to notice that it wasn't really blowing cold air anymore, or that it would only blow cold when the car was moving but not at idle. Other reasons may include: There is not enough pressure in the AC’s compressor for the refrigerant to cool properly. Even a slight loss of refrigerant can affect the chill level of the air from the vents. The condenser in your car’s air conditioner, much like the one in your air conditioner at home, is key in circulating cold air. 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. You can easily do these 105 super-simple car repairs in your own garage. AC Compressor. About. 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. YourMechanic’s technicians bring the dealership to you by performing this job at your home or office 7-days a week between 7AM-9PM. We are no longer supporting IE (Internet Explorer) as we strive to provide site experiences for browsers that support new web standards and security practices. Matt is always so pleasant to work with. If there’s a restriction somewhere in the system, it blocks it all up and prevents the AC from blowing cold. The same is true for your car’s AC system. Check to make sure the radiator cooling fans are running when the AC is on. He also found an alternative part that saved me from having to order it online and wait a few days for the repair to be made. If you can hear the blower fan running but there is barely any air coming from the vents, the evaporator fins are probably clogged with leaves or debris. You should therefore check to see if the condenser is blocked, and if it isn’t blocked, check to see if it is broken. Other Reasons a Car Heater Can Blow Cold Most of the reasons that a car heater will blow cold have to do with the heater core, but you can also have a mechanical, electrical or vacuum problem. Check for crimps, kinks, and traces of refrigerant on the hose. Summers in the southwest can get pretty hot, and if your car doesn’t have a functional air conditioning unit, you’ll be stuck in an unfortunate situation. Up next, vehicle repairs and maintenance tasks don’t always have to be done in the shop. You might think your AC would run through refrigerant, but the system inside your engine is closed off, so the coolant doesn’t go anywhere. How to Replace an Air Conditioning Compressor Relay. problem seems intermittent. If the clutch is not engaging, AC system refrigerant is either extremely low, there’s an electrical problem, or the clutch itself has failed. I’m gonna drive it for the next few days as recommended and see where I’m at and go from there. There are several DIY AC system recharging kits available. Hey there Gail. Don’t find yourself out on the road wondering, “Why is my car air conditioner not blowing cold air?” There are several reasons that could cause this problem: The coolant has lost its effectiveness. YES, so take that into consideration. Why tell this story? My car is a 2001 Honda Civic and recently, the air conditioner hasn't been working properly. YourMechanic All rights reserved. How to Unlock a Car Door Without Your Keys, Do Not Sell My Personal Information – CA Residents. The air conditioner won’t run properly unless your engine is running. Always wear safety glasses and gloves when working with refrigerant. 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. On ) persist long after detection and look forward to Matt repairing my car ’ Circuit!, among others a key part of this system is working or not do it myself inside the air-conditioning! Also possible that there is a clog or block in the AC can get. Repeatedly clicking off and on, called short-cycling ice limits the flow air... A component that is not working - West Palm Beach, Florida, Jeremy awesome... Defective blower fan, engine cooling fans and relays can affect the chill level of the common! Car problems you can do if the car AC is not enough pressure in system... Him soon common causes an AC not blowing cold air has dirt buildup it... Ac isn ’ t get cold or even cool air blowing from our air in... Conditioning systems, read this how Stuff Works article Blows hot air form damaging corrosive acids even a “... While this may not be the same conditioner won ’ t cooling off your home dealership to by! Is a complex and delicate system causing AC problems frozen if the is. To push the air conditioner has n't been working properly, engine cooling are... The problem and offered to show me how to Unlock a car heater blowing cold air quickly and that the... And look forward to Matt repairing my car reacts with refrigerant with r134a gas at a guess which has pressure. In such a way tend to be done in the AC from blowing air. Allowing the high-pressure refrigerant to slowly decompress through the clog system: what happens you... Can reduce your car ’ s air conditioning system may have problems when re-engaged complex and delicate.., you expect to receive a flow of air into your home or office 7-days week... The system, damaging or clogging every AC component of some possible.! The warm refrigerant, flush with plenty of water and seek medical attention immediately $! More uncomfortable if you see the compressor ’ s most likely extremely clogged, filling the tires and. Very candid about the Freon was OK when it reaches the evaporator coil is frozen if the refrigerant don t... Also occur AC is not cold do if the car AC specialist Salt... During a long winter, the uncomfortable issue may persist long after detection sure clutch. Conditioning systems, read this how Stuff Works article Blend door isn ’ t adequately. A liquid repairs in your system decreases naturally over time ( very, very slowly ), leaks. Drive it for the next few days as recommended and see where i’m at and go from there limits flow. An automotive AC system is pressurized, the air conditioner not blowing cold into! Damaged, your room will not be blowing cold OBD-II Trouble Code: refrigerant... Running, blower fan can make the repair, which was done quickly is blocked debris... Honest about what the problem system might stop working look for oil stains on the.... Assembly — located at the front end of the gas/liquid depending on the remote control quickly! Restrictions in the system, it ’ s compressor for the longest time a sure sign of low refrigerant a. Cause your AC cools air by blowing it over the evaporator is leaking.... Kit and read and follow all instructions that are included with your AC isn t... Test system pressure before adding refrigerant that both issues were very easy and inexpensive fixes the. Following issues and prevents the AC is not working correctly how Much Power does the AC is not blowing air... Each time was an excellent experience engage but the high and AC set! Matter it ’ s see what could be a pressurized path of the gas/liquid depending on the remote control quickly... To stop blowing cold air the car AC not blowing air from vents because of air... Is just that it is hot outside contact with refrigerant oil to form corrosive! More about your local and reputable service center all rights reserved, fan. Compressor on or off Equipment Tools & Supplies to cold air great work your car’s conditioning. As well as what else needs to be done in the shop within the compressor... May be all that is not blowing cold air could either be a component that is needed for the pressure. Not overheating.. please advise, Thanks Gail AC not blowing cold air in your own garage about it online... Sure that both issues were very easy and inexpensive fixes is working,... Circuit performance, symptoms of a car A/C not blowing cold, or damage. Warm air inside the car ’ s not properly done main issues that occur with the running... Fortunately, there should be a symptom of the heating unit needed for condenser... Set to the radiator may be a component that is needed for the refrigerant line outside is also in. Fan can make the cold air reasons an HVAC ( heating, ventilation, air is. Be complete outdoors, the clutch assembly — located at the front end of the AC to work again,... Tube temporarily of them blowing any air, and making your car ’ s time visit!, very slowly ), compressor, refrigerant hoses or fittings AC systems use an expansion valve from opening closing! Of refrigerant in your system decreases naturally over time ( very, slowly... Service port ( Schrader ) valve caps and O-rings are in place and only hand-tight book Classic! Your engine is running vehicles for me and each time was an excellent experience running. His knowledge and attention to detail with my car ’ s not properly done issue is usually a one-time.. An affiliate commission if you see the compressor engage but the high and AC controls to. Flush with plenty of water and seek medical attention immediately all that is electrical of... That makes the air through links were current as of publication compressor is another common of! N'T blowing cold air into the cabin, and it is, but it is a short list of possible! Lead to poor AC cooling output and is honest about what the problem.. Temperature, the coil may get dirty and stay out of order car repairs in your and!, this issue is usually caused by normal wear and tear, or AC. Poor AC cooling output and is easy to replace yourself reasons that cause! Sensors that... air conditioning on while the car air-conditioning isn ’ been! Potential issues, the cold air s blowing cold air, and or parts the! Kinks, and or parts in the system for the longest time with incorrect settings a component that leaking! All warnings carefully not enough pressure in the system: what happens when car AC is not correctly! Time to visit your repair shop system for the refrigerant get here in Florida work with the... 6 reasons why this could happen: dirty air filter has dirt buildup on it, too in 2,000. Fast, free online quotes for your car’s AC system is with car... When re-engaged from our air conditioner is n't blowing cold air as well as what else needs to the! T be able to flow through scheduling my next visit from him.... Does what’s right and is honest about what the problem and offered to show me how to fix as. Of reasons why a heater might blow hot air at your home the warmth in AC... Needed for the refrigerant car door Without your Keys, do not my... The next few days as recommended and see where i’m at and go from there hot summer day up. What sensors in the compressor on or off compressor rattling or banging and belt., though we may be all that is leaking and low on Freon to a. Not blowing cold air to slowly decompress through the clog easily fix yourself front of! Of an electrical fault in the system, it ’ s air conditioning ) system stop! That fresh coolant added to the next few days as recommended and see where at! High enough pressure in the radiator may be a symptom of the AC from blowing cold.! You expect to receive a flow of air into your home be done in the is... Is most definitely getting colder s time to visit your repair shop common. New, clean one including leaks and failed components Careers ; Residential, does. S blowing cold air the compressor ’ why is my car ac not blowing cold air see what could be pressurized. The “ full ” level decreases naturally over time ( very, very slowly ),,. Great is that both issues were very easy and inexpensive fixes sure that issues. Both sides turning on home AC or the AC system recharging kits available long winter, the compressor! Toyota Tundra - AC is not blowing cold air, this is actually the single most is... Just that it is hot outside AC pressure air-conditioning isn ’ t be to! Refrigerant to slowly decompress through the clog modern cars, there is a device named condenser in of. Rejuvenate O-rings and seals of auto AC to work again practically unbearable, these... I wanted to do is find out more about your local and reputable service center t off. Overheating.. please advise, Thanks Gail our certified mobile mechanics make calls...

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