When it isn’t, driving in your car can be uncomfortable, especially on hot summer days. 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 well-functioning car air conditioning system can make your ride more comfortable, especially during summer time. It is still enough to make you sweat, nevertheless. This is often the case. 3. There are two main issues in the condenser that can lead to a car AC system blowing hot air. One of the first things you will notice is warm air coming from your car AC vents. Most cars do not have AC vents, only climate control vents. 7. The first thing to check is the levels of Freon in the system. Other possibilities include a faulty compressor, broken cooling fans, or an issue in your electrical system. 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 problem is that it is not always easy to diagnose an electrical problem. Do not expect the air do be cold, however. The A/C system in your car has a maze of wires complete with fuses, relays and pressure switches that work in unison to provide safe operation under normal operating conditions. If the condenser is already broken, there is nothing left to do than to replace it with a new one. It’s no fun being stuck without air conditioning on a hot summer day, especially in a hot car where temperatures can quickly reach 150 degrees or more. If there is no leak, it is still possible to break the condenser altogether. The heater core may also leak coolant. The Refrigerant is Leaking. If an account exists, an email will be sent with further instructions. Hence, this heat gets blown through the AC vents in the passenger compartment. Therefore, it is possible that your car is low on refrigerant that is preventing your air conditioning from working properly. 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 on. The other problem is related to a broken condenser. Starting it shocks the system and can hasten the speed of its deterioration. Whether it’s in your house or car, when you’re ready for the cool refreshing AC, hot air blowing in your face can be unbelievably frustrating. We've identified three common A/C System issues to help supply you with information on what may be going on with your vehicle. Even though all these things make it very difficult for a vehicle owner to understand why their AC is blowing hot air, there are some things you can check easily to help narrow down what the problem might be. Without it, it would be impossible to move the refrigerant. Your air conditioner is great—when it’s working well. No problem! Refrigerant Leak The most common reason that an AC system might be blasting warm air instead of cool air is a leak of refrigerant. The air you get inside the car is not as hot as a faulty condenser, however. There can be couple of reasons for the air conditioner to blow hot air. When it is working properly, your cars' air conditioner is a wonderful thing. Car heater problems are also frequently associated with heater core difficulties: coolant may not be traveling through the heater core properly, the air from the blower motor is not reaching it or there’s a clog in the small tubing of the heater core. 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. I have tried replacing the console in the middle of the dash that physically controls those things as well as the fuses and blower motor relays as well. If your car has a “Max AC” setting, select that option. Similar to many other car parts, the compressor can wear out over time. In particular, the blower motor may be failing or the blower wheel may be slipping from the blower motor shaft. Air compressor could be hitting a wall. Because of the weight on the car, the compressor malfunctions. It was added by the dealer. One has to follow the wires from the fuse box all the way to the individual AC components. Our certified technicians are trained to search for much less sinister signs of leaks like the oily residue which might be found on or around A/C hose units or connections. Cooling fans are not the sturdiest components in a modern vehicle. Your AC Refrigerant is Leaking If your car AC is blowing hot air, it is very likely that the refrigerant in the unit is low. Considered as the heart of the modern car AC system, the compressor is what drives the refrigerant throughout the series of tubes, hoses, and interconnected devices. The problem in identifying the location of the leak is in the very nature of the refrigerant. This allows the liquid to “cool” down before it converts again into gas as it moves through the rest of the AC system. Since a leak causes a reduction in pressure within the system, a liquid refrigerant can turn into gas almost in an instant. If you have broken cooling fans, then they will not be able to remove much of the heat from the refrigerant. Call None of the other A/C components will … One way to keep your compressor in tip-top shape is by running your AC on full blast for 10 to 15 minutes once a month, regardless of the ambient temperatures outside. A puncture in any of the tubes of the condenser can lead to a leaking refrigerant. Another way is to stop in to Pep Boys for a FREE A/C Quick Check (not available in the state of California) and an associate can give a visual inspection of the compressor to ensure that everything looks in order. The motor is what’s providing the heat if the fan isn’t frozen as well. In an airtight car AC system, there is no need to recharge or top up the refrigerant. The main job of the condenser is to remove heat from the liquid refrigerant coming from the compressor. If the refrigerant level is low then there is a leak that needs to be addressed. 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. Your car AC is actually a heat exchanger that recirculates warm air from inside the cabin and replaces it with cold air. It can occur anywhere in the connections or hoses of the system. The refrigerant passes into a part called compressor, which pumps it. Symptoms of a Bad or Failing AC Pressure Switch, The Best Cabin Air Filters (Review) in 2020, The Best Car Air Fresheners (Review) in 2020, Help us to show you The compressor helps circulate the air in your vehicle, and controls the temperature of the cabin by eliminating all the warm air, and replacing it with cooled air. For example, before you go tearing apart the ventilation system in your car, it can be smart to check the AC lines under the hood. Start with the fan speed turned to its highest setting. The main problem is a refrigerant leak in which you need to replenish the system with enough amount of refrigerant after the leak is repaired. Firstly, your air compressor could be hitting a wall. Electrical Issues The primary reason for which car ac is blowing hot air is when the air conditioner of the car is on it draws a load of power from the engine of the car. Questions? The air conditioner won’t run properly unless your engine is running. A/C systems are sealed and therefore don't require refrigerant top-off's. See the steps we are taking. As it reaches the compressor, it gets pressurized and turns into liquid form. If your air conditioner is blowing warm air, or just not working properly, it is best to schedule a service ASAP to maximize your comfort. 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. Reasons Why Your AC Is Blowing Warm Air. © 2020 The Pep Boys – All Rights Reserved. When there isn’t enough freon, the air conditioner’s clucth won’t come on, which will also affect the compressor from cycling. Air Conditioner Freezing. The condenser looks like a smaller version of the radiator. You can inspect those wires that you can reach. From here, the refrigerant turns into a gaseous state again before reaching the evaporator. I'd guess that the AC is screwed up, if it does that, or else there's some little switch or the thermostat is messed up that is telling the heater to turn on instead of the AC. If you could tell me if you feel a LOT of heat at your feet now, or if there is a lot of hot air coming out of the vents near your feet I might be able to help narrow it down. Here are some of the most common reasons. This site uses Akismet to reduce spam. Addressing blockage often requires flushing of the system by a trained AC technician. Hence, only a professional car air conditioning technician can help solve the problem. A car A/C blowing hot air is often the result of a refrigerant leak. Armed with that info, let’s explore how you got into this mess. Within your car, the AC system is sealed and … Any time a system in your car … In most cases, it's due to a loss of refrigerant in the system. It can also occur in the compressor, the condenser, or the evaporator. 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