There are many components and other systems that can cause warm air to come from the vents. The compressor is not working properly. Thank you for sharing what we need to do if the air conditioner isn't blowing cold air. Problem #2: Frozen evaporator coil. The Causes Why Car AC not Blowing Cold Air When Idle? Why Does My Car Air Conditioner Blow Cold Then Warm? Most likely it’s low on gas. Not an expert but ironically, in my experience, this is usually down to a fault in the cooling system. Hence, your room will not be optimally chilled. And, when it senses any issue, AC is the first thing to get shut-off. Our auto shop proudly serves residents in Modesto, CA, … Why tell this story? If you know how to gauge and refill Freon, do it. 7. Without it, it would be impossible to move the refrigerant. So if you’re wondering why is my car air conditioner not blowing cold air, contact our ASE Certified technicians at Auto & Fleet Mechanic for more information about auto AC service and to schedule an appointment. A large restriction of refrigerant will also result in your A/C blowing warm air. However, if the coil gets too cold, the condensation on it will freeze, turning the coil into a big block of ice. Those of us who live in low temperate zones could go for many months at a time without using our car’s air conditioner. The system is sealed with r134a gas at a guess which has a pressure switch for high/low pressure safety. Electrical Issues An automobile air conditioning system cools the air inside your vehicle by removing heat through a simple four-phase cycle. Do not expect the air do be cold, however. 3. The most common causes of broken air conditioning are leaks or compressor issues. 2007 Ford Taurus. There are a variety of reasons why your car AC is not blowing cold air. Lastly, the reason why your car air-conditioning isn’t blowing cold air is because your engine is overheating. The first thing to check is the levels of Freon in the system. Here are some reasons why this could happen: Dirty Air Filter. “Car ac not blowing cold air when hot outside” or “car ac not cold enough”: This happens due to two reasons. 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. Overheating. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by pearsonrj, Apr 18, 2012. Cold Air Blows Intermittently. Your A/C blows warm air. So you went for a road trip or a long drive, and after 30 minutes of driving realized that your AC suddenly stopped working or switched to blowing warm air. But all you have to work with are the symptoms. Low Refrigerant Pressure . This six step process has been very helpful and I will definitely try this. This is the most common reason for a central AC not blowing cold air. If your air conditioning mechanics is not up to par, then have a certified car air-conditioning system mechanic check it for you. If your car’s air conditioner suddenly stops working, it can be incredibly inconvenient. One of the main reasons why a compressor may fail is if it was not … Blend air door is the reason for drawing hot air to cold air in your car system. 2. With most A/C problems, low Freon levels tend to be the primary problem the vehicle is having. 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. A/c not cooling. Freon is the chemical refrigerant that helps cool the air circulated by your car’s air conditioner. Though the AC not blowing isn’t exactly the issue, the stuffy air can make it feel like it is not blowing. There's probably a button you have to press to activate the AC. Slow refrigerant leak. Although an automotive AC system has few moving parts, diagnosing why your car is blowing warm air can be tricky. There are many reasons why your AC isn’t cooling off your home. Again, it’s the ductwork. The problem occurs at most cars at some point in their lifetime. Learn more: Has Your Air Conditioner’s Air Filter Betrayed You? Leaks and blockages. ... Too much heat in the system may impact air conditioner performance. 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. Is your air conditioner not blowing any air? One of them is that your central AC may stop blowing cold air. Low refrigerant. If your air filter is blocking airflow, the AC unit won’t be able to work properly. ... Over the weekend I hope to do a post on doing just that, after I completed the task on my own car this week with success at little cost. So, make sure that you check the compressor as it could be the reason why car AC not blowing cold air after recharge. It may not be the easiest of tasks if you are not familiar with working with car air conditioners. Why is my car not blowing hot air? Also sometimes I see a white cloud of … 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. 01. of 07. Most cars have a device that temporarily disengages the compressor of the car air conditioning when an engine is under a lot of stress or when the engine is extremely hot and this is normal. Fixing the AC could be as simple as recharging your car's AC refrigerant or repairing a refrigerant leak but may also require complex electrical climate control repair or slipping compressor clutch to get your air conditioning operating at top performance once again. Expansion valve freezes up 4. When your air filter has dirt buildup on it, the cold air won’t be able to flow through. 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. Maybe your car air conditioning system only needs a topping-off. The office staff members answering customer calls at ACE Home Services often check off this concern: “Air conditioner not blowing cold air,” which gets our HVAC technicians in the truck and on their way.Among HVAC companies in Phoenix, this is the most frequent call for help.In the high heat of summer, and in the slightly cooler days of fall, we still get the call. May 28, 2018. (See right image.) This door is located in the ventilation system. If your air conditioner isn’t blowing cold air, here are a few things to check for: Be sure your air filter isn’t clogged. Check the basics first. Your air conditioner is great—when it’s working well. If your air conditioning is blowing warm or even hot air, there are a few potential causes. Your AC cools air by blowing it over the evaporator coil. Contrary to what you might think, too much refrigerant flowing into the evaporator doesn’t lead to cooler air. I checked the refrigerant pressure with the engine on/ac on high and it falls into the “full” level. Poor maintenance of the air conditioning unit is the main culprit for car air conditioner not blowing cold air when idling.Checking the system from time to … One of the most common reasons for a window air conditioner to fail to deliver cold air is incorrect mode selection. My car is a 2001 Honda Civic and recently, the air conditioner hasn't been working properly. If you're activating it by pressing the button and setting the temperature to cold and it's not blowing cold air it could be a few things but it's most likely that the AC system is out of freon and it needs recharged. If your car air conditioning system isn’t blowing cold, your car may have one or more of the following issues. Here are a few of the reasons why a car air conditioner may not be blowing cold air: Why is my car air conditioner not blowing cold air . Maybe it is, but it is scorching outside so it doesn’t seem as cold as you would like it. Unreliable car heaters can make the cold winter months practically unbearable. Because it illustrates just one of many reasons why a heater might blow cold air, and an air conditioner might blow hot air. Some of the most common auto ac repair questions that are asked are why the car’s air conditioner stops blowing air, why it stops blowing cold air, or why the AC is blowing hot air. HI, I have a 2005 kia spectra5, my a/c unit works, but sometimes when Im driving the airflow stops. You will still get air flow through the AC vents in the passenger compartment because of the fans in this section. Believe it or not, protracted periods of idleness can cause the compressor to “go bad” and then it won’t perform properly. Here are some of the most common reasons. There are many reasons an HVAC (heating, ventilation, air conditioning) system might stop working. One of them is the low quantity of the refrigerant, which prevents the refrigerant from absorbing the coldness as required. You jump in, crank up the engine, turn the dial and boom... you are screaming WHY IS MY CAR AIR CONDITIONER NOT BLOWING?? 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. 3. In a properly working air conditioner, a fan will draw air over the evaporator coils, where it is cooled, and then be re-circulated back into the room. Air after recharge cooling off your home Blows hot air to cold air anymore 1 system only needs topping-off... 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