This is done by the refrigerant, which starts as a liquid and then “boils” in the evaporator as warm air from the cabin flows across it. As it passes through the engine, the water absorbs the heat and is then circulated through a heater core where a fan … Why is My Car Air Conditioner Blowing Hot Air? In this case, you need a mechanic to check the problem, bring the car to a reputable shop specializing in auto ac repair, and have it … The refrigerant passes into a part called compressor, which pumps it. Here are some of the most common reasons. There are exceptions. If you are uncomfortable doing the fix yourself, see a reputable mechanic. The Front Blower Motor Relay (also known as the AC Relay), located behind the junction block with a black connector, B05, is the culprit. Know about why Car AC not blowing cold air after recharge. If your car AC is blowing hot air, it is very likely that the refrigerant … Car Seats For Toddlers – Top 5 Models Comparison. How To Attach A Blind Spot Mirror To A Proper Position? I had a 1980 Ferrari that did not come stock with AC. If it’s hot in a situation of car air conditioner blowing hot air, then it’s an engine problem. The condenser is responsible for the removal of the heat absorbed by the refrigerant. You can find refill kits at many automotive stores. R-134a is a new form of refrigerant which is eco-friendly, and less expensive than the R-12 coolant which was used in a few older automobiles. I stopped by a mechanic and he checked my AC motor and said from the engine area the AC is blowing cold air but the issue is the air getting into the car cabin and take it to the dealership. The condenser looks like a mini radiator, and it is situated in front of the radiator of your car. If this isn’t the case, the next car air conditioning troubleshooting tip is to see if there are any leaks. Although an automotive AC system has few moving parts, diagnosing why your car is blowing warm air can be tricky. In summers, it can be a real nightmare. Best Car Batteries For Hot Weather – Top 5 Picks! You also have the option to opt-out of these cookies. Lastly, if none of these apply, it could be a broke compressor or an electrical problem. Bring the car to a reputable auto shop that specializes in car air conditioning systems. If you notice that your thermostat gauge stays on the “C” even after the … Yet the problems that can cause an auto AC to perform in such a way tend to be the same problems. These cookies will be stored in your browser only with your consent. First, the air conditioner may not be the problem. There are many components and other systems that can cause warm air to come from the vents. Essential Tips for Maintaining a Car You Rarely Use, Safe Driving Tips Every Car Owner Should Know. To ensure that you remain safe, the electrical system shuts down in an effort to prevent overheating and to avoid damaging other parts of your automobile. The air conditioner … The most common cause of hot air coming from car AC vents is low levels of refrigerant. If you’ve got a problem with your car air conditioner blowing hot air, then it can be a cause for concern. This is often the case. You can check for puddles under you car, as well as check the level of your Freon. Our site includes quite a bit of content, so if you're having an issue finding what you're looking for, go on ahead and use that search feature there! You can clean it with a soft brush, or with forced water. However, the best person for fixing a car air conditioner is a mechanic. Car air conditioning systems that blow warm on one side and cold on the other side usually have one of two problems. why is my ac blowing hot air in my car. If it’s hot in a situation of car air conditioner blowing hot air , then it’s an engine problem. But what if the car ac doesn’t blow cold air at all? If your car’s air conditioning system is blowing hot air… The radiator, thermostat, belts, water pump and hoses are responsible for circulating water to the engine to keep it from overheating. Harley Davidson Road King – Classic vs Custom, Continental Run Flat Tires on BMW and Mini Review. Car Air Conditioner Blowing Hot Air Intermittently – What To Do? We hope you enjoy this website. A car’s cabin will heat up as the engine’s coolant heats up. So, there are two possibilities why AC doesn’t work. In fact, here in Columbia, MD we are expecting the temperature to hit the 90’s this week. When Freon starts to get low, the A/C can start intermittently blowing out cool air—particularly when it reaches a certain speed—and blowing hot air at other times. Recommended to you based on your activity and what's popular • Feedback The most common cause of an AC system blowing warm air is a lack of refrigerant, though, you may also have a problem with your condenser. And that is because of the low pressure safety switch (it is a part of HVAC system). Such systems allow you to control the temperature in the passenger compartment of the cars as per your comfort level. Like high setting of heater hot. There may be many reasons why a car AC blows hot air. Your AC Refrigerant is Leaking. One of the most common roots of this issue is a lack of refrigerant within your car’s AC system. Necessary cookies are absolutely essential for the website to function properly. The refrigerant is the soul of the AC. Copyright © Wheelzine & Buzzle.com, Inc. Let’s take a look at a few of the reasons why your car’s AC could be blowing hot air. To get rid of this problem, you first have to check the condenser of your car. This website uses cookies to improve your experience. Do you jump in your ride, crank it up and immediately ask yourself, Why is My Car AC Blowing Hot Air? If it is a leak problem, then your mechanic will track from where it is leaking, and then fix it. A refrigerant is a fluid that is transformed from liquid to gas … In this article we find out why this happens, and what can be done to stop it. A Blown Fuse or Electrical Issue. First, either the refrigerant is unable to absorb the heat from the car interiors. One common compressor issue is a broken or loose serpentine belt, and another is a broken compressor clutch. If you notice that it initially vents out cold air, but over the drive goes to warmer air, then the problem is likely a frozen expansion pipe. But unlike all the previous times, yesterday there was also a burning smell. We'll assume you're ok with this, but you can opt-out if you wish. I understand how frustrating it can be if the air conditioner of your car doesn’t work and leaves you sweating. Electrical Issues. Your car’s A/C system is made up of a jungle of wires, switches, … Another way to determine why you are faced with a problem of car air conditioner blowing hot air is to see when the unit blows warm air. The compressor of your car will not turn on, if there is a low level of refrigerant. Refrigerant level low. Dog Car Seats Review: Small, Average and Large Dogs, Buying Convertable Car Seats: Pros and Cons. At first, it may not seem like a problem, but as it continues, it’s easy to see there are problems with the unit. Well, we're looking for good writers who want to spread the word. However, if the cabin air filter is fine and cleaned and still the ac vents barely blow air even if the car ac is set to "recirculate" then it is a more serious problem. Ultimately, if you are dealing with air conditioner blowing hot air situation, follow these steps to determine the problem. When it is not, which of course occurs on the most brutally hot day of the year, the A/C suddenly becomes a cruel joke, blowing warm, stale air into your vehicle. The Refrigerant is Leaking. Best of all, fixing the system quickly will help you stay comfortable in warmer seasons. Dysfunctional Thermostat. Within your car, the AC system is sealed and thus, you should never need to top off your … Electrical issues are perhaps the most difficult problem to diagnose when it comes … With that in mind, it’s possible that an electrical issue is the reason why your vehicle’s AC is blowing hot air. A refrigerant is a fluid which cools the air by absorbing heat from the interior of the vehicle, and is responsible for the cooling effect. Collecting Initial Information Turn the air conditioning on while the car is running. Like having a blocked condenser, having broken cooling fans can cause a lack of cooling at your condenser and could cause your car AC blowing hot air. It can be because of the compressor problem, or a problem in getting required amount of refrigerant. Here are some things to keep in mind when you are experiencing a problem of car air conditioner blowing hot air. When it isn’t, driving in your car can be uncomfortable, especially on hot summer days. If your air conditioning is blowing warm or even hot air, there are a few potential causes. Secondly, it must not be getting refrigerant, maybe because of a clogged condenser or refrigerant leak. This category only includes cookies that ensures basic functionalities and security features of the website. The problem of a car air conditioner blowing hot air on one side is mostly seen in cars which have a dual zone climate control system. Brian England, Mon, May 15, 2017. We've created informative articles that you can come back to again and again when you have questions or want to learn more! Such systems allow you to control the temperature in the passenger compartment of the cars as per your comfort level. The hot air is blown directly from the engine if the blend door isn’t working properly. Well, the compressor is important because if it is not lubricated properly then it will wear out, causing further more car problems,  Hence, it is really very important to check if the compressor engages properly while the AC is turned on. Select Page. Other possible causes can be obstructions in the system, or the blend air door in the HVAC (Heating, Ventilation & Air Conditioning) unit being stuck in the ‘HEAT’ position, due to which the evaporator receives no air. If Your Air Conditioner Is Still Blowing out Hot Air. You need to clean it properly to remove the dirt or debris on it. Compressor issues can be difficult to diagnose and repair, so make sure you bring your car to the experts to make sure the job is done right. Let’s take a look at a few of the reasons why your car’s AC could be blowing hot air. The reason it blows hot air on one side may be because of low refrigerant levels or because of HVAC door issue. Your vehicle should have a complete relay diagram showing the location of all of the vehicle's electrical components such as … One of the most important components of the car AC is the compressor, which is a mechanical pump that pumps the refrigerant. The coolant absorbs the heat from the engine, causing it to become hot. We also use third-party cookies that help us analyze and understand how you use this website. Additionally, some mechanics may offer specials for servicing, especially during the summer. 6789 Quail Hill Pkwy, Suite 211 Irvine CA 92603. If your air conditioner is blowing warm air, or just not working properly, it is best to schedule service ASAP to maximize your comfort. A faulty compressor will definitely cause your car to blow warm air or—even worse—no air. This is a substance that provides the means upon which the system can get rid of excess heat and provide the necessary element for cooling the passenger compartment. Therefore, you need to take your car to the mechanic whenever you find any fault in the stuck blend door. By addressing these problems early, it can help to ensure bigger problems do not arise in the future. An automobile air conditioning system cools the air inside your vehicle by removing heat through a simple four-phase cycle. The problem of a car air conditioner blowing hot air on one side is mostly seen in cars which have a dual zone climate control system. The AC in your vehicle works as a heat exchanger. It is mandatory to procure user consent prior to running these cookies on your website. Because the cold air takes some time to get produced. The first thing to check is the levels of Freon in the system. If this is the case, be sure to take it into a mechanic as quickly as you can. Other possibilities include a faulty compressor, broken cooling fans, or an issue in your electrical system. If you notice it’s empty then refill and you should be good to go. Take note that a clogged condenser is just a contributing factor to why the car air conditioning blows hot air and not blowing cold air. It’s that time of year again. Take your car to a car repair shop which is expert at AC repairing. If it can be located and if you think that you can fix it yourself, then go ahead with it. This typically happens if the engine is too hot, so be sure to check your car’s temperature. If you find that hot air is still coming out after both recharging your refrigerant and removing any debris that may be blocking your air conditioning system’s components, you should take your vehicle to a certified mechanic. Get in touch with us and we'll talk... For your AC to work effectively, it must receive its fuel, which is the refrigerant. When idle, the ac will work just fine and eventually start to blow hot air. If this isn’t the case, the next car air conditioning troubleshooting tip is to see if there are any leaks. In this short auto repair article, a master automotive technician shares his experience, derived from working on air conditioners in Florida for the last couple of decades. by | Jan 20, 2021 | Uncategorized | Jan 20, 2021 | Uncategorized Ask the mechanic to check for leaks then repair if necessary. When you turn on the car AC, you expect it to blow hot air for the first few minutes. I have tried the AC but again it doesn't work. Within your car, the AC system is sealed and thus, you should never need to top off your … First of all, your electrical system might be having problems. Stay comfortable in warmer seasons under you car, as well as check the of! What ever air is blown directly from the engine, causing it to become.! We 're looking for good writers who want to learn more common roots of this problem, you expect to... Batteries for hot Weather – Top 5 Picks pumps the refrigerant passes into part... 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