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. Cool Automotive Products and Tool Recommendations, Read AUTO REPAIR ARTICLES sorted by topic, 8 Reasons Your Car Might Not Be Performing Well (And How to Fix Them), Custom Wordpress Website created by Wizzy Wig Web Design, Minneapolis MN. Gloves are a good choice as the escaping Freon can be extremely cold and the fittings on the air conditioner system will get very hot when system is operating. Luckily, a small amount of basic maintenance and some quick inspections can get your car ready to drive through winter weather. It's cold coming off the compressor but doesn't reach the can. Check where the evaporator drains condensation with UV light. So, whenever your Car AC not blowing cold air after recharge, follow the above tips. Feel the air coming out of the air conditioner and assess how warm, cool, or cold it is. The most obvious ways to improve the cooling is to get the AC gas refilled and get a new cabin filter. (C) 1989-2021 AutoZone, Inc. All Rights Reserved, Got feedback for our blog? If the system pressures are too high and/or too low, the expansion device could possibly be the issue. Over time, the bag of desiccant can fail, spreading the desiccant throughout the system where it clogs the orifice tube and expansion valve. At this point, the only fix is to open the system, flush the lines, replace the orifice tube/expansion valve, receiver/drier or accumulator, condenser and pull a vacuum for at least 45 minutes to pull all moisture from the system. Sulfuric acid is caustic and can burn clothing and skin or cause blindness. If your Ac is warm at idle, takes forever to get cold and you have to keep it low to feel cool a new refrigerant control valve solenoid will probably fix that. But the decrease in cooling is even worse if the air carried in MOISTURE. But A/C is more than just comfort; it’s a safety issue too. Please note that the tool that you receive after placing an online order may be in a used but operable condition due to the nature of the Loan-A-Tool® program. If your AC is charged but not cold, read this. It’s located in front of the grille. It is important to check your car’s air conditioning system from time to time and make sure it is working properly. Should electrolyte get on your body or clothing, neutralize it immediately with a solution of baking soda and water. But this problem that we are talking about, is quite a different one. I am sure everyone wants their car air conditioner to work at its best, especially during scorching heat. In this case, you can clean it yourself or even change this element. Why is my car air conditioner not blowing cold air . Problem #1: Refrigerant leak Refrigerant is the liquid/gas responsible for absorbing heat from your home’s air. The AC orifice tube / expansion device filters and regulates the flow of refrigerant through your air conditioning system. Check the car … When your air conditioning system isn’t blowing cool air, that is the first sign that you need auto AC repair. Well, you might have faced a number of car ac cooling issues with your car AC from time to time. Check to see … AC systems do not actually create cool air. Leave it here, Check to see that the cooling fans on the condenser or. The car blows cool but not cold air. The engagement clutch, called an AC clutch, can also fail rendering the compressor inoperative. Then, when summer arrives and the tubes and seals expand, it’s … Fortunately, if the system is low on refrigerant, you can recharge it to regain access to ice cold air within just a few minutes. Check around all fittings to verify that they are all secure. Your brake pads and rotors help your vehicle make safe stops, so it's important to replace them when necessary. Moisture is like poison to the internal system components and can damage the AC Compressor as well. Check out this guide with three things to check before going to the mechanic so you can diagnose your specific climate control problem. Common Problems: Leaks in one or more seals or the compressor itself can occur. Clogged tube shows evidence of “Black Death.”. Look for any restrictions like leaves, bugs or dirt that would keep air from passing over the condenser. Get the BEST auto repair information Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period. If the air is warm to cool, but not cold as it should be, there may be an issue with air flow. Moreover, timely repair can avoid future issues as well. While there are several potential issues, the most common is low refrigerant. A/C isn’t cooling? WRONG! So you have to refer to the factory legends to learn the identification symbols and then refer back to circuit diagrams to find the splice and ground locations. Eautorepair.net redraws factory wiring diagrams in color and includes the component, splice and ground locations right in their diagrams. Give attention to the AC evaporator box water drain tube. However, Alldatadiy.com also includes disassembly instructions for interior trim panels and exterior items like headlights and tail lights. As the metals oxidize, they release particles that combine with the refrigerant oil to form sludge. An automobile air conditioning system cools the air inside your vehicle by removing heat through a simple four-phase cycle. Car air conditioner not cold? What to Look For: If the refrigerant is low, check for visible system leaks that appear green and oily. Contaminant particles from the AC Compressor or AC Accumulator/Drier restricting the flow of refrigerant can lead to poor cooling. The compressor of the AC system moves heat from the radiator to the condenser. Reasons Why Your AC System is Not Blowing Cold Air The main issues that occur with the car’s air conditioning system are due to poor maintenance. A broken condenser is another genuine cause for which your car AC may not work properly. Failing internal components caused by normal wear or low AC Oil levels caused by leaks. The AC evaporator acts like a huge ice cube with holes in it. The same is true for your car’s AC system. This returns the refrigerant back to a liquid state where it will once again enter the evaporator core and absorb more heat from the interior. If the air conditioning is set to max cool and fans on high, but is only blowing moderately cool air: Beyond this, the next step is to always check the pressures in the system using a manifold gauge set. If there’s a restriction somewhere in the system, it blocks it all up and prevents the AC from blowing cold. Turn the air conditioning on while the car is running. Be sure to consult your owner’s manual, a repair guide, an AutoZoner at a store near you, or a licensed, professional mechanic for vehicle-specific repair information. Pricing: ---Eautorepair.net--- 1 month subscription $19.95 per vehicle 1-year subscription $29.95 per vehicle 4-year subscription $44.95 per vehicle ---Alldatadiy.com--- 1-year $29.95 subscription: additional vehicles $19/95 each 5-year $49.95 subscription: additional vehicles $34.95 each Which one should YOU choose? Then, when summer arrives and the tubes and seals expand, it’s hard to find the leak. If the fan is damaged or cannot run with its full force, it cannot cool down the heat coming from the Freon (refrigerant) through the condenser. Air Conditioner – If your car’s air conditioner stops working on a hot day, then the ride to your destination can be quite uncomfortable. You can save yourself some cold cash by learning how to fix your car’s AC. Because the cold air takes some time to get produced. And something as simple as a blown fuse can cause it to stop working. 4-when I press the AC button the compressor engage without any proplem. Tap Freon can and open valve to begin charging. Especially if is one of those days where putting down the windows just won’t cut it and help cool it off. It's not the Freon. They include wiring diagrams and technical service bulletins. If it is working and not blowing cold enough it is possible you have a leak and there is not enough refrigerant in the … The Accumulator/Drier collects and absorbs moisture. The air conditioner won’t run properly unless your engine is running. That saves a lot of time because you don’t have to refer back to the component locator or circuit locations. Fortunately, there are things that you can do if your air conditioner is not blowing cold air. That is the most common question that people will ask in regards to their car’s air conditioner not working. Or, you can simply take your vehicle to the professionals as they know what exactly to do. But first, ensure the refrigerant levels are correct and the radiator/A/C Condenser fan(s) are working properly. The AC compressor is a rotating pump that circulates refrigerant (Freon) throughout the system. A single drop of water is enough to push the entire system over the 20-ppm threshold. There are a lot of factors that affect the cost of a brake job. Without a doubt, it is no fun when you pop on your car’s air conditioner only to not feel cold air. The system is sealed with r134a gas at a guess which has a pressure switch for high/low pressure safety. It’s that particular unit in your car that keeps the refrigerant cool and then flows through the blower by converting the hot air into cool air. Use this guide to help you get started replacing brake pads and rotors. The receiver/drier and accumulator have a bag of desiccant drying agent to remove and hold the moisture, but it has a limited capacity. 2. A person trained in air-conditioning can usually diagnose an issue by reading both gauges. They cool the air by removing hot moisture. Worse yet, moisture in the system in concentrations greater than 20ppm can cause serious damage. Particle contamination from worn parts inside the compressor are a frequent culprit. Common Problems: Refrigerant leaks. The sludge coats the inside of the evaporator and condenser fins, reducing heat transfer efficiency resulting in a significant drop in cooling. The AC condenser looks similar to a radiator and works in conjunction with the radiator fan(s). Always chock your wheels prior to lifting a vehicle. Problem: Air Conditioning Goes from Cold to Hot When you’re driving and the air suddenly goes from comfortably cool to horribly hot, you know there’s a problem. It’s also possible that there is a very simple reason your car air conditioning is not cold, and that is electrical. Always wear gloves and safety glasses and other personal protection equipment, and work in a well-ventilated area. In most cases, their diagrams are right from the factory manuals. Symptoms that can be causing your car ac to not be cold: 1 – Be sure your heater damper door is sealed properly and does not allow heater air to be mixed with ac air.. 2 – If your car ac is cold but there is not enough airflow, make sure nothing got sucked up into the return air under the dashboard.This will restrict airflow and cause your ac to not perform as designed. If you need to dig into your doors, dash or console, Alldatadiy.com is the better choice because Eautorepair.net doesn’t any interior or exterior trim or body part removal. If you're starting a do-it-yourself air conditioning job, it's a good idea to take a look at the whole system. If that’s not what is causing it, check the engine’s condenser. Refer to the service manual for specific diagnostic, repair and tool information for your particular vehicle. The cool air felt from the dash vents is provided by the AC heater blower motor assembly. Leaking or Low Refrigerant Leaking or low refrigerant is the most common reason you might have an issue with a car A/C not blowing cold air. Winter means bad weather, less sunlight, and poor road conditions. I mean, my car ac blows cool but not ice cold. 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. Having your car’s air conditioning go out suddenly can ruin your day fast. The air conditioning system is used when the open windows in the car are no longer cooling. Buy the same color if you replace yours. Water in an AC system reacts with the refrigerant to form hydrochloric acid (HCI). Another common reason for car AC not blowing cold air when idle is an overheated engine. High condenser pressure is a sign of air in the system. FREE Loan-A-Tool® program requires returnable deposit. This happens most often in the winter when the seals and tubes contract. Alldatadiy.com, on the other hand, uses the factory diagrams. If your air conditioner doesn't blow cold air it could be because the filter compartment is dirty or stuck. If the clutch is not engaging and the system has refrigerant, use a. Most likely it’s low on gas. With the engine running turn the A/C on max cool, set fans high, and make sure that the clutch is engaging on the compressor. If you’re tracking down a wiring issue, Eautorepair.net is the better choice. Failed AC clutch. Inspect and test before replacing! Depending on your vehicle, you may have an accumulator or a receiver/drier. An electronic leak detector is the best way to check for leaks. HCI corrodes steel, iron, copper and aluminum. Car ac repair. Troubleshoot these common car air conditioning system problems. It then feeds that cool air into the engine. Refrigerant and refrigerant oil readily absorb moisture when exposed to air. See this post for static pressures at ambient temperatures. What you can do is check whether the electric cooling fan that sits beside the condenser is running. Air in the system causes pressures on the high side to be higher than normal and causes the gauge needle to flutter. Overheated engine. When you turn on the car AC, you expect it to blow hot air for the first few minutes. Car AC won’t cool due to sludge Air carries moisture into your car’s AC system and that moisture combines with the refrigerant and oil to form sludge. Although an automotive AC system has few moving parts, diagnosing why your car is blowing warm air can be tricky. #1 Your Car has a Freon Leak One of the most common causes of an air conditioner malfunctioning is a freon leak. Learn these factors and some standard prices from this guide. Do not wear ties or loose clothing when working on your vehicle. my AC is giving a cool air but not ice cold … The most common causes of broken air conditioning are leaks or compressor issues. There are many components and other systems that can cause warm air to come from the vents. That air blows through the AC vents which you breathe inside the car. It’s possible that the expansion valve that dispenses the correct amount of refrigerant to the evaporator has failed. The recommended high-side and low-side pressures can be found in your vehicle's repair manual, or online. When diagnosing an air conditioning issue, it's easiest to begin at the compressor: If there is no voltage - a cycling switch may be bad, a fuse may be blown, and the system may not have enough refrigerant pressure to trip the low pressure cutoff switch that cycles the compressor. Once you have your gauges hooked up, move on to observing the AC compressor itself. If there is voltage - the clutch may be bad. However, if you find that the cooling effect is missing, you should go on troubleshooting. Orifice tubes are color coded. If your AC system is low on refrigerant, it won’t cool your home as well as it normally would. Any time an AC system leaks refrigerant out, it also lets outside air in. Why is my car air conditioner not blowing cold air? so if the condenser fan and compressor working soo why im not getting ice cold. 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 … The first culprit of your car air-conditioning not giving off cold air when the car idling is the lack of air flow in the condenser. There’s too many rambling answers on here. To test for air in the system, compare the static pressures listed in this charge to actual readings based on gauges and ambient temperature. Remember, inspect and test before replacing! Use the tester to search for a leak. This article lists the most common causes. Common Problems: Internal failure allowing desiccant material to enter the AC system. When the car is already overheated and the fans in the radiator and condenser are not properly working for some reason, the system can’t cool down the heat with the maximum efficiency. Use caution when working with automotive batteries. How to keep your car's ac blowing ice cold in your car DIY with Scotty Kilmer. A green and oily substance may appear in the drain tube if larger leaks are present. 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. The hardest part of figuring out the right fix is knowing where to start. 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