Good day!! Thanks so much for any info you can give! please. If the compressor cycles and you’re sure your refrigerant level is good, then it sounds like you probably have a clog in the system. Then I switched on AC still it was giving hot air. Savith, My car requires the new r1234yf refrigerant and it cost about $500 at the dealership to recharge and diagnose and most “street” shops don’t carry the tools to address the r1234 refrigerant recharge. I have a 2001 honda civic dx. The problem could be coming from a few different places. When the AC stops working I can let the truck sit for a while and it is back up and running normal. In that instance we recommend adding Red Angel A/C Stop Leak ( and then following it up with the proper amount of R-134a to fill the A/C system. Now, I have check the pressures again, and they seem fine. To check that for faults you may need to bring your car to a Hyundai dealership to have them test the module. I have checked the fuses. Can you advise me? I bought a 2000 Tacoma and wanted to use the A/C. Still fan not coming on. Air compressor could be hitting a wall. Air conditioners should provide a consistent air temperature, and occasionally you might experience warm air when it’s on a cool setting. The resistor is a relatively inexpensive part to replace so it may be worth just replacing that to see if it keeps your problem away. This site appears to be extremely helpful. Any ideas on any testing i can do at home or a direction I can point my mechanic to? I’m dying in this Florida heat and want to order a replacement if the blower could be the problem. Another possibility is that your AC system is reaching an over pressure situation and the compressor is shutting down. any idea what should i look at? We recommend adding the Red Angel A/C Stop Leak ( and then recharging your A/C system with the proper amount of R-134a. Then I changed the blower motor. Please suggest on what could be the issue and how to get it resolved. Car air conditioning systems that blow warm on one side and cold on the other side usually have one of two problems. Thanks for your question about your Elantra. I’m hoping it will be a much easier fix than having to change the compressor. It sounds like you might need a compressor, but you would have to check the pressure on the high-pressure side of your system to confirm that. Therefore the only conclusion I can come to is that the accumulator may be bad, or something with the electrical wiring or the electrical control panel.. or both. Based on the high pressures of your AC system and the fact that the refrigerant is an environmental hazard you can’t simply remove the refrigerant on your own. The levels of refrigerant are fine as well. 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. Sometimes the gauges on the small R-134a cans you can buy at the auto parts stores aren’t as accurate as they should be so you may try having your system evacuated and refilled with the correct amount of refrigerant. When I put the gauge on it reads in read Alerts! Paid the mechanic 290 to fix then two weeks later I got hot air again. Everything seems to be working properly except the cold air! Getting to the root of the problem can take some time and effort, but we have simplified the process by providing you with the most common A/C problems along with how to resolve these problems once they’re discovered. We recommend using the Red Angel A/C Stop Leak & Conditioner, found here: I have to sy though that iI do not have any air condition in my car so it can be that i has to be something else I only have a normal heater. Often times, the cabin air filter is right on top of the blower motor fan so the best thing to do would be to remove your cabin air filter and see if it is damaged or full of debris. Thanks for your question about your Chevy van! When your car is driving there is enough air passing over the condenser to cool the refrigerant so your AC works properly. The clicking may also be caused by a loose electrical connection to activate your compressor. I got a new ac compressor and got it replaced yesterday. I have a 2006 PT Cruiser. wen i revd, it got colder. Thanks for your question about your Isuzu Rodeo. We would recommend starting by checking your system pressures both on the low side and high side. You can prove your AC compressor is bad by hooking your vehicle up to a set of mechanic’s AC gauges and checking the pressure increase across your compressor. It was diagnosed as needing the clutch and coil replaced which I had done. And thanks in advance. When it is working and the engine is running it stays on and is consistently cold. Also, another time I was driving I heard 2 noises as if pressure was being released (like a “pffffft pffffft”). I feel so stupid! Most likely your AC system is simply getting inefficient and having trouble cooling unless there is an excess air flow over the condenser, like when you are driving. suresh. For starters, try reading our article about electrical problems here: Then the AC will not go on again. We recommend using the Red Angel A/C Stop Leak ( to help stop the loss of refrigerant and return the A/C to normal functionality. By the way, when it works right, it’s excellent. …………. HVAC units blowing hot air are quite common and if this problem persists, then you need to get it checked. No leaked, new compressor and belt. *Checked the condenser fan (it’s working) You can check this by measuring both the high and low pressures in your system to see if the compressor is creating the necessary differential in pressure for the system to work. Hi there, If your mechanic did that test and found the wrong differential pressure across the compressor, he could be right in that you need a new compressor. Would be glad, if you can help find the right issue. The only problem I am facing is that, it blows very hot air ( when the ac is switched off) after driving it like 20/30 minutes. The other thing that seems odd is if your mechanic didn’t find a leak in your system, why did he have to add more R-134a? It sounds like the actuator that controls the passenger side vent door has gone bad and has stuck that flapper door in the “heat” position. That would cause your clicking noise and make the compressor harder to turn which would lug your engine making it want to stall. The other things that could make your system malfunction in the way you are describing is a slightly low refrigerant level, so it may be worth having your mechanic check that as well. I have a 2004 honda crv the ac isint blowing cold like it should be but the ac pump dose engae when i turn on the ac what could be the problem. I should also say that usually, if I get to my destination, turn the car off even for maybe just 15 minutes (I haven’t yet tried turning off and then turning back on right away to test this yet), and turn it back on it seems to be working fine. Unfortunately replacing this actuator can turn into a lot of work because a significant amount of the ventilation ducting will need to be removed. We recommend adding a can of the Red Angel A/C Stop Leak ( and then recharging your system with the proper amount of Freon. It sounds like you may be low on refrigerant which normally means you have a leak in the system. If your system is overfilled it will hit the high pressure cut off and stop your compressor causing it to blow warm. Compressor is kicking on like it should. I have a 2011 honda ridgeline. Hi! The compressor works fine,i suppose? The problem is that it is not always easy to diagnose an electrical problem. There, it will form a chemical weld sealing your air conditioning system so you will stop loosing pressure. So I had it serviced. Hi, In this case, you can also check the pressure right after the compressor to tell if your compressor is doing its job or not. I will be placing some stop leak in it. Any suggestions what the problem might be. Yes, you may want to have a gauge put on it as the system can act up if it is overfilled. It sounds like you need to have the temperature blend door actuator replaced. Hi, Could you help me in any way to see what’s possibly wrong? If you are sure your system has the correct amount of refrigerant and you don’t get a pressure change when the system is turned on, then you either have an electrical problem or your compressor is broken. If the broken line left the system open to the atmosphere for any length of time you may consider having a vacuum drawn on the system to try and remove any contaminants before you restart the compressor to try and minimize any particles in your system or other things that could cause clogs or damage the compressor. I have recharged it, but all it does different is make a hissing sound from the passenger side. Summer in Australia can be brutal and when your car’s air conditioning (A/C) unit is blowing hot air, it can be frustrating and uncomfortable. Please advise. Also, since you mentioned things changing for a short amount of timing but then acting up again you could also have a large clog in your system that got better after the drain and refill but now is causing problems again. Since you suffered a sudden loss of air conditioning we would recommend checking to see if your compressor is cycling when you turn the air conditioning on. If you are low, we recommend using the Red Angel A/C Refrigerant Stop Leak to help stop the loss of refrigerant, and then topping it off with your regular 134-a refrigerant. If the thermostat is faulty it may be keeping your air conditioning from coming on. If the condenser is already broken, there is nothing left to do than to replace it with a new one. If it turns out it is low, then you probably have a refrigerant leak. Lastly, it is possible that your system has a clog in it somewhere that increases the pressure enough on a hot day to shut things down. based on your description you could have a few different problems. when its over 80, especially if parked in the sun for an hour or two, my a/c will blow hot air even after driving for a while. Thank you for asking about your Hyundai Santa Fe. My 1996 Chrysler Concorde does not blow cold air unless the car is accelerating. It is approaching the time to roll the windows down and turn the heater on to avoid cooking the engine. Please contact our technical support line at 888-863-0426 so that we can get a better understanding of the vehicle’s condition and be able to make any appropriate recommendations. If your compressor has failed there would not be the normal pressure rise across the compressor. This is a fairly common problem with the Chevy Equinox. First, we would recommend calling your local Jeep dealership and seeing if the air conditioning system in your vehicle is still covered under a factory warranty since it is still so new. Am I overloading the syst? A few months ago I noticed that the fan was blowing only hot air. It can also occur in the compressor, the condenser, or the evaporator. It is possible that your AC compressor is starting to wear out. Since you’ve changed everything else, it sounds like there is a short in the wiring either from the wiring harness to the switch, or from the switch to the resistor. Now he advises the Institute of Advanced Motoring — read more from Tim here. I don’t want to take it to the dealer if I don’t have to. or a Blower problem? Thank You, Turn the air conditioning on while the car is running. It sounds like your HVAC and vent controls are kind of going haywire. Hot air coming out of your Audi’s air conditioner can be attributed to several potential issues: Wearing compressor. In an airtight car AC system, there is no need to recharge or top up the refrigerant. I can turn car off then on and it will fix temporarily. I tried to jump it in different variations but could not get my AC clutch to kick in. I’ve checked the freon pressure it’s good, condesor responds fine it seems. Maybe I’m not asking the right question in the right way… or maybe the info just simply does not exist on the net. If you’ve checked all the electrical components, then you might also check the pressure in your system to make sure you don’t a refrigerant leak also. Unfortunately, it sounds like you may be losing it a little too quickly for the Red Angel A/C Stop Leak to be affective. since my ac is blowing cold air when on idle i don’t think its a low freon issue right? It sounds like a lot of people have had similar AC problems with that year Camaro. I drive a 2002 Jeep Liberty. Based on your description, it sounds like you my be experiencing a refrigerant leak. What can be the issue? My Elantra 2007 air conditioner stoped working so I took it to repairer , he figured the Refrigerants level was low so he filled it , initially it worked fine after the fill but later all of a sudden the compressor discharge all the Refrigerants . Hello BDP, My toyota Ac works well now. Thanks for your question about your car blowing hot air. Thanks for your question about your air conditioning. The compressor randomly kicks in when the A/C is on. The other possibility is that the HVAC control unit itself is bad, but this is less likely. My 1998 Ford F150 blows cold air when idling, then it gets hot when driving. Check the refrigerant level first. The problem could be that you’re hotwiring the compressor and there are other electronics in the system that aren’t turning on causing the system not work properly. The band is running on all pulleys good, what can be the problem??? There should be an auxiliary fan that turns on when your air conditioning is running to help cool the condenser and if it is not coming on the heat from your car warming up may be enough to cause your AC system to not work properly. We recommend taking the vehicle to an A/C specialist for your repair. 2005 Equinox.. driver side vents r blowing warm air while the passenger side is cold. usually after a day or 2 of doing this the air will work up to a month and begin the process over again. last, the problem you’re describing could also be caused by a clog in your system, most likely in the condenser or the expansion valve. Be sure to leave a comment or question on anything that may interest you. In this case, the best thing to do is have your system evacuated and refilled with the proper amount of refrigerant to get it working again. Also, if your AC fans are not coming on, it could be causing your air conditioning system to cool very slowly or not at all until your vehicle is driving at higher speeds. 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. For more information on tracking down electrical issues like this, read our article on. Thank you for your question about your ’05 Ford Freestyle. What is strange is when I get to 40 miles an hour the A/C blows cold again. Also, if your ventilation system is malfunctioning, the blend door may be allowing air to pass through the heater core as well reheating the air and making it feel like the AC isn’t working. When I start moving, it gradually cools back down. In your case, it sounds like the blow motor resistor may be bad or have a loose connection. Take your car after a sunny spring day can be the problem you low. That i can point my mechanic to fix this all hot a Toyota wish 2006 model or sensor unplugged. Hissing can indicate a leak when reinstalling the blower motor which was full of dust and cleaned the and... Interstate one day and after that the dirver side and cold air intake by your ventilation system is giving false. 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