When it doesn't it is blow normal air no cold when I have AC Max on. My Auto AC is Blowing Cold Air One Day and Warm Air the Next? If the condenser is blocked by debris or is damaged, the refrigerant will not flow. Here is a more detailed list of the most common causes of a car AC not blowing cold air. One of the other common culprits of producing warmer-than-usual air would be a broken condenser. One of the most difficult automotive air conditioning problems to diagnose is an intermittent A/C problem. Refrigerant level low But if you’re a DIYer, you may not prefer it. If you do not feel any air or if you only feel air coming through the vents on certain settings, the problem may lie with the AC’s blower motor or the blower motor resistor. There is no battery to operate the blower. Why is My Car Air Conditioner Not Blowing Cold Air? Blocked or Broken Condenser The condenser’s job is to turn the freon gases back into liquid. your username. pricing, inventory and service offerings. 2040 Whitfield Park Avenue, Sarasota FL 34243. And you need to know how to solve the problem immediately. I will show in this video. My car is a 2001 Honda Civic and recently, the air conditioner hasn't been working properly. With no air (or very little) cold air blowing into the cabin, there could be a number of explanations, including: Electrical problems in the control module, resistors, or one of the relays; A busted or burnt out blower motor There are a few different components which make up your AC unit, so let’s take a gander at some reasons why your car air conditioner isn’t blowing cold air. If the refrigerant levels fall below normal, the AC will absolutely fail to blow out cold air because the compressor will fail to cycle. It often happens, and it is the most common issue that makes an AC blowing hot air. Recently I got the AC unit of car recharged as it had leaks and mechanic fixed the leaks. I recharge unit for your ac. Blower still does not work. Feeling a bit frustrated? 10 causes why AC blows warm air 1. There are many other reasons a car’s A/C may be blowing out … While this may not be the case with a, unit, the uncomfortable issue may persist long after detection. I went back to him and he checked the freon level with gauge and said freon is same as he put (35 psi). It can feel cool for the first few minutes because the engine has to warm up in order for the coolant to heat up and provide heat to your interior. Thirdly, there are electrical wires and connectors that might cause intermittent issues. Sometimes, car air conditioner blowing hot air instead of cold air. The true test of the quality of an automobile shouldn’t be how fast or smooth it drives, how safe it is, or how sleek it looks. Therefore, it is possible that your car is low on refrigerant that is preventing your air conditioning from working properly. Any number of culprits could be causing your car A/C to blow cold then warm air, including: A Leak in the A/C System A small refrigerant leak is the most common reason a car’s A/C gradually loses its cool. The clutch cycling switch is a component which triggers the electromagnetic clutch connected to the air compressor. 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. Blower still does not work. Speaking of refrigerant, this precious liquid is the most vital lifeblood of your AC system. When you put all the way to hot-cold-hot again, the solenoid can get loose and start working again for a while. Hello everyone. Most issues aside from a simple refrigerant fill will require professional car AC repair. Another common reason for car AC not blowing cold air when idle is an overheated engine. Jiffy Lube Discusses The Differences Between Engine Oils. As these electrical components may sometimes lose their ability to make contacts over time, this problem requires professional car AC repair. Leaks which allow the refrigerant to escape slowly over time can be a particular thorn in your side if left unnoticed. In conclusion, multiple problems can cause an AC to blow warm air in the cabin. If your car’s air conditioner isn’t blowing cold air, the first thing you should look for are signs of leaking or an A/C compressor that does not engage. Log into your account. I have a 2007 VW Jetta and the air conditioner has suddenly quit blowing cold air. On the other hand, if your air conditioner is producing cold air, but it’s not blowing at you, this is likely an issue with the system’s fan, which can occasionally be caused by restrictions. Again after 4-5 days I went back to him and told him to check again and again this it was same. Until the engine warms up, there’s no heat for the heater core to extract. Checked continuity of 40 amp blower fuse; it's okay. Also cars use flaps to regulate air mix from heater core (it is in … Your Car will Thank You. Enter your location for the closest stores in your area. Sometimes, one or more broken parts may simply result in a complete AC system failure. Speaking of refrigerant, this precious liquid is the most vital lifeblood of your AC system. sometimes it will blow cold and it will stop its in and out but - Mercury 2003 Sable question. Nobody wants to be stuck in the heat without a working AC unit, on land or on wheels. To detect the possible leaks, there are AC leak detection kits available … During ordinary usage, the blend air door sometimes gets jammed, preventing cold air from passing through the vents. The blend air door responds to the switch inside of the vehicle which controls the AC temperature. Sometimes blower motors and/or their resistors will fail and stop pushing both hot and cold air through the vents. Without pressurization, the failure to balance the amount of refrigerant can result in hot air being released. Thank you for sharing what we need to do if the air conditioner isn't blowing cold air. There’s nothing quite like being stuck in a hot car in the middle of a traffic jam. , you can be back up and cool again in no time. Why Did My Car Stop Blowing Air? When the car is already overheated and the fans in the radiator and condenser are not properly working for some reasons, the system can’t cool down the heat with the maximum efficiency. If your air conditioning isn’t blowing cold air, there are a few different things that could be wrong with it. When certain areas of your vehicle fail to function, the problems can sometimes be drastic enough that you’ll have to pull over and receive on-site maintenance. Don’t put off an issue that can become an even bigger threat to your system, especially one so easy to fix and uncomfortable in the warm months ahead. Posted on Jun 05, 2012. Although an automotive AC system has few moving parts, diagnosing why your car is blowing warm air can be tricky. And So Will Your Wallet - save up to $15Get Coupons. Welcome! more accurate We know the feeling. Low refrigerant is the most common cause of a car’s air conditioner not cooling well. Checked for battery at the blower, when the car is running. A ride can be even more uncomfortable if you are stuck in traffic. We Accept Extended Warranties. Rotated all the PDC relays around, they have the same ID, other than ABS pump. Unlike other components which need timely repair or refueling, the condenser can remain unchecked until you spot a problem. Depending on your climate, of course, a failing AC can be catastrophic, but with some timely car AC repair, you can be back up and cool again in no time. We pre-selected this store based on your location to give you why not blowing hot air? Posted May 22nd, 2017 by admin & filed under Blog , Vehicle Maintenance . Very unpleasant when I go to lunch break after working in the heat. This is the reason that it takes a while for heaters to start blowing warm air. A faulty automotive air conditioner can be one of the more difficult issues to diagnose and repair. As this is the most common problem for AC systems, Jiffy Lube in Largo has technicians prepared to perform a check for leaks or refill if necessary. If the clutch cycling switch fails to function properly, then the air compressor won’t turn on to pressurize your refrigerant. The compressor of the AC system moves heat from the radiator to the condenser. the a/c will usually blow hott all the time and occasionally sart blowing cold at a random time. car heater does not work, blowing cold air. In case of confusion, you can call a repairer and let him seal all the leaks causing AC compressor running but not cooling. The website "Jiffy Lube" would like to use your current location. Leaks which allow the refrigerant to escape slowly over time can be a particular thorn in your side if left unnoticed. 6 Reasons Why Your Car Air Conditioner is Not Blowing Cold Air. The main issues that occur with the car’s air conditioning system are due to poor maintenance. When the refrigerant is leaking, all you have to do is using the sealant that is available in most of the car repair shops. My 2012 Altima AC works whenever it feels like. SOURCE: Air conditioner in my Mercury Mountaineer 2005 stops cooling. Why does my air conditioner blow cold only sometimes and hot ... just went out to the car and turn the ac on full blast with and noticed the fan spining. Though the most common reason for a car air conditioning unit to blow out hot air is low refrigerant, other leaks or restrictions within the system can prevent proper function as well. While your situation the problem is cold air, it may be how this system gets stuck in your car. The technicians at Jiffy Lube in Largo have all of the tools necessary to determine what the exact problem is, along with the expertise to handle the job. While this may not be the case with a malfunctioning car air conditioning unit, the uncomfortable issue may persist long after detection. Your air conditioning system uses a refrigerant, a compressor, an expansion valve and two heat exchangers to manage air flow and cool the air inside the cabin of your vehicle. If the refrigerant levels fall below normal, the AC will absolutely fail to blow out cold air because the compressor will fail to cycle. When certain areas of your vehicle fail to function, the problems can sometimes be drastic enough that you’ll have to pull over and receive on-site maintenance. I have a 1999 Jeep Cherokee and the air conditioner is giving me some problems. has technicians prepared to perform a check for leaks or refill if necessary. There are a few different components which make up your AC unit, so let’s take a gander at some reasons why your car air conditioner isn’t blowing cold air. Sometimes I can drive all day, and it’s fine. This radiator between your grill and the motor is responsible for transforming the gaseous refrigerant into a liquid. What Happens If You Go Too Long Without an Oil Change. Please allow it in your browser settings. Since this problem requires a bit of further inspection, Jiffy Lube in Largo can provide assistance to make sure the blend air door actually is your problem. A car’s air conditioning system is complicated, as we’ve probably made clear so far in this post. stores. As this is the most common problem for AC systems, Jiffy Lube in Largo has technicians prepared to perform a check for leaks or refill if necessary. If the refrigerant levels fall below normal, the AC will absolutely fail to blow out cold air because the compressor. Here are the common causes an AC system is not blowing cold air. Here’s how to nail down the cause. For instance, if the compressor is not engaging when you press the AC ON button and everything else, it’s excluded. Then AC was blowing extremely cold air but after 3-4 days I felt the decrease in cooling. Rotated all the unmarked relays around in the junction box. Enter your location for the closest 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. Fortunately, there are things that you can do if your air conditioner is not blowing cold air. The issue is that at random times, it stops cooling, and just blows hot air. © 2021 South Bay Lube. If your car AC blows cold then warm, the cause can be a low system charge, moisture in the system, a malfunctioning expansion valve, clogged evaporator fins or an overcharge condition. That means any blockages such as a jam within the blend air door will need to be resolved in order to process cooler air. It’s also the reason that a plugged heater core, stuck thermostat, or air in the cooling system can all cause a car’s heater to blow cold. There are a variety of reasons why your car AC is not blowing cold air. When this happens, you won’t get cold or even cool air blowing from our air conditioner. 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. In here in Houston Tx where August the HOTTEST in the year, my Altima AC cold sometimes work and sometimes doesn't. If the AC condenser coil is clogged or blocked in any way, or if a leak has formed in the condenser, it will fail to properly process the vital refrigerant. 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. Low car AC charge causes evaporator freeze up and low airflow 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. If your car’s air conditioning goes out on a hot summer day, your commute to work and to run errands is going to be miserable. your password Other times, it only blows cold for a few minutes, before the air gets warm. Well, you might call up a car mechanic and solve such a car ac cooling problem for the price of a few hundred bucks. Depending on your climate, of course, a failing AC can be catastrophic, but with some timely. I need to fix this as soon as possible because it is beginning to get hot inside my car. Thanks for reading my post. Air Conditioner - If your car's air conditioner stops working on a hot day, then the ride to your destination can be quite uncomfortable. why does the ac on my car blow cold only sometimes? There are many components and other systems that can cause warm air to come from the vents. In other words, one day your car’s A/C is blowing cold air, the next day it’s warm air. This six step process has been very helpful and I will definitely try this.