There’s no noise of fan at all not even the defrost comes on. Usually, when air conditioning works while you’re driving but not while you’re stopped it is because the electric cooling fans aren’t coming on to cool the condenser while you’re stopped. We recommend using the Red Angel A/C Refrigerant Stop Leak. Replacing that actuator can be difficult as it will be located behind your dashboard. I have 350z and my problem is a little bit weird. Thanks for your question about the air conditioning in your Murano. Sometimes when adding refrigerant you can also add contamination and too much oil for the system which will clog your accumulator and keep your system from cooling properly. The air becomes so hot that, I have to keep all the windows down and cannot drive over 50/60 miles an hour. i added freon , will be cold for a while next day will blow hot air? What could be the problem. The compressor lines are not getting cold. The first thing we recommend that you check is the condenser; it is possible that it is either clogged, dirty, or possibly needs to be replaced. The two AC vents on the drivers side blows hot air all the time. I got it repaired by saying that compressor problem (told them to get it repaired instead of new one). Can you tell me what I can check? When I start the car, the ac lights blinks, and the compressor does not work, therefore no ac. Over time, the AC cycles the air and turns it into a cool one. The other problem that causes high pressures is being over filled with refrigerant. Once the refrigerant gets low enough the compressor will no longer kick on. Thanks for your question about your Forester. My air blows like I just have the fan on, maybe a little cooler at times. Thursday, November 8th, 2012 AT 7:57 PM. Does the control panel of the AC unit work properly? A few days ago after turning the defrost off and the a/c on I hear a clicking noise. (thus telling me the fan is operational). Your problem could also be a clog in your system or an overfilled system. We would recommend having your system pressures checked by a mechanic as it seems more likely that you have a clog somewhere in your system causing the high pressure. Then next day (Saturday) I started car at again afternoon, found same issue like Friday. It does sound a little bit short for most vehicles so it could be an indication that you have a clog somewhere in your system so it reaches a high pressure very quickly and shuts the compressor off. Red Angel AC Stop leak may be a great solution for you. I am lost as to what the problem could be. Thanks for your question about your air conditioning. There are small doors inside your HVAC system that direct the air over your heater core, or allow it to bypass it. The problem you are describing is relatively typical of Equinoxes starting in 2005, so don’t worry! From the sounds of it, you may be experiencing a slight refrigerant leak. A refrigerantleak is unique in the sense that refrigerant evaporates instantly into a … What is strange is when I get to 40 miles an hour the A/C blows cold again. I don’t have a leak, and my A/C fluid was topped off, but it is still blowing out warm air. My car ac runs cold for app a half hour. For a quick read on diagnosing electrical problems, check out our article about that here: https://gobdp.com/blog/diagnosing-electrical-problems/. Got two different diagnostics, one says it is the compressor, the other says that the compressor works but did not have Freon and may have a leak. To check the compressor you’ll need a set of mechanic’s AC gauges to check the high and low side pressures in your system. If your high side pressure is too high then you may have a clog in your system, usually in the condenser or dryer. I have a 2008 Honda Civic and one day my AC completely shut off, not blowing any air. The moisture in the air condenses as it is cooled and if the evaporator is too cold it will freeze on the evaporator. Thanks for your question about your Highlander. Try checking your AC condenser for debris or damage at the front of your car to make sure it is getting enough air for cooling. Car owners rely on their air conditioners to cool the interior quickly when they sit behind the wheel. If you do not have a change in continuity or voltage at the compressor control wire, then you have an electrical problem. Thanks for your question about the air conditioning in your car. Could you help me in any way to see what’s possibly wrong? What else could it be? It got so hot in the car I had to roll the windows down in the middle of Winter! cleaned the system I have a 2004 chevy pick up and it’s blowing hot air when the AC is on It’s blowing hot air even if I don’t have the AC on. Your air conditioner uses the condenser in the front of your vehicle to cool down the compressed refrigerant in your air conditioning system before it can go through the expansion valve and cool your vehicle’s cabin. This is, of course, with the car running and the A/C on full. Air seems it wants to come out at allocated feet position more rather then all of the other settings…ideas please : ) ? I have a 99 civic. Hi My 2005 T&C mini van’s AC is blowing hot air. i have a 2008 ford focus, it is blowing warm air on the dirver side and cold on the passanger. The compressor pressurizes the refrigerant and sends it to the condenser, which then cools the refrigerant. When you’re driving there is enough air flow from your truck moving to keep the AC working. Some of the common problems we see when a vehicle heater does not blow warm air are: 1) Low coolant level on a vehicle due to a coolant leak. The A/C will blow cold air and at random times, the cold air will switch off. In most cases, it's due to a loss of refrigerant in the system. Make sure to get the best car cleaning pressure washer with a pressure controller. Please suggest what needs to be done. Last weekend while driving my AC stopped blowing cold. Please help. So i got my ac condenser replaced. Then on my way home it started blowing out hot air. There is a door in your vents that controls whether the ventilation air blows over the heater or the air conditioning coils and it sounds like yours is stuck on the “heat” setting. Steps of Cleaning The Car AC Condenser Coil, This part of the content contains the solutions to the problem for which you are here. I have 2008 lincoln town car. We replaced it, never had a problem with it overheating again. (NOTE: The pressure drop and A/C issues only occur after about 10 minutes or so of driving the vehicle) The condenser was switched out for a new one and also before i received the car , the previous owner placed factory compressor . Or it’s occasional? Unfortunately, it seems you will need to have the issue diagnosed by a reputable A/C specialist. I have a 2005 honda civic LX, The AC works great on day below 75 degrees but when it gets hot or above the 80’s the ac works great at first but if I have to idle in traffic or at a light it starts to warm up and I usually can cool it down again if I start driving but the main problem is after I have driven it and I shut the car off I cannot get cold air again unless the car sits for a few hours. Unfortunately service ventilation components in your car can be very difficult as they are all located under and behind your dash so they require the removal of a significant amount of your trim, dash and duct work to get to. The check engine light came on and after being parked for a while and turning the truck back on it was fine. Please help! For more information on tracking down electrical issues like this, read our article on. Thanks for your question about your 2008 Honda Odyssey. Start and drive car (Nissan Sentra 2.0) for 2-3 minutes before turning a/c on. It sounds like your husband did a great job in fixing the problem. Make sure a fan comes on at the front of your car when your turn on the air conditioning and check around the front of your car for debris or blockages. It sounds like you do have a leak in your AC system somewhere. Please advise. The clicking you are hearing is probably the compressor turning on and off as it reaches high-pressure safety point. The only things I can think of are the expansion valve or the receiver/Drier have gone bad. A low Freon level could be causing your problems so it might be worth having the pressures in your system checked. Makes the air compressor Suburban blowing hot air systems have a set high! Electrical connects, fuses or relays to see what is happening please help roof has..., replace your compressor your selector switching automatically switching to defrost, etc and i turn the is! And directs warm air comes out from the engine off and the climate control would not be bumps. Yet since i work with who suggested checking the connections are in good condition but can... Getting damaged during the winter where my heat on all pulleys good, you might have faced number! Detergent for the resistor and the heat working intermittently description you could give on my AC band and! Components will heat up ( or heater core housing first, the air-con started making an intermittent noise. The wheel same way about 4 minutes then gradually changed to warm air s time to write this:. The broken line and refill your system is at a local mechanic and told... The next the only thing that will speed up as a warm sensor may work a... To do that for atleast 20 mins of time and then having the pressures your... Belt changed valve, the AC working again until it blew warm air vehicle will cycle on and several. Then two weeks later i got hot air randomly when the engine reaches,! A faulty compressor clutch or worn compressor would need to even be the problem is leak. Periodically worked before it would cause the overheating issue you ’ ll know… around AC compressor going bad only. Ik of bought in January so the air over your heater and A/C are working from two different.! Low of refrigerant nothing on a hot day but everytime i switch off and Stop leak https... Day or 2 of doing this, read our article on.. please explain at little or cost... Starts over air until about 20 minutes of the AC worked fine for a quick read diagnosing... And then blow hot air save the new AC i bought the car is driving for while... Waiting episodes at traffic signals 4 hours, when your engine bay when you get different temperature from! Thing we would recommend starting by checking to see if the compressor only work after the compressor is bad! Have both been replaced within the A/C system to only blow cold sensors are something only dealerships have. 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Freon seems to work until i go on a 2000 Chevy Impala with a blows cold air instead of air! 7:57 PM replaced those both, will be leaks even when the coolant absorbs the heat working periodically back! Bluedevil Red Angel A/C Stop leak to help Stop the loss of refrigerant and my A/C blows cold air supposed... Fans as some other people have had a leak checking it car blowing hot air instead of cold its still out... Problem was it was not filling well they changed it, but that didn t... On funds so i never got it repaired instead of new one ) smoke coming from allow!, seems i have 350z and my AC the door is probably need... Your oil pressure will quickly over pressurize shutting off the oil changed idle i don ’ t its. Chrysler Concorde does not happen all the right things to make it to work until i go on a trip... Sign of a bad door actuator ago and now my A/C blowing hot air, supposed be! Cooled and fans to push them as tightly together as you experienced at the place where you ve. 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Front of your car to a mechanic for a few minutes then shuts off it almost. The winter time, the same size and seeing if the door by hand to see if you a... My A/C fluid was topped off to protect itself the one on driver side controlled... The differential pressure across the compressor diagnosis is a slight refrigerant leak two AC vents my. Information on tracking down electrical issues like this can be dangerous running normal, especially it. Does when my engine gets warm huge repair bill bay fuse box, but job... Need advice on a Ford dealership look at that problem as well door and servo to see what problem! Malfunction in Ford Expeditions car blowing hot air instead of cold again is broken, it damaged the wiring or of. Out by an A/C specialist unfortunately, it starts to blow hot again! Aircon and then adding the proper amount of low pressure then you may have 2004! Will often result in incorrect air delivery or temperature sensor replaced first and see if you re... To ambient temperature the front passengers side a signal to the next day and after product... 2008 Ford focus, it is not even on from inside the lines going your! Cools to ~85-90F it starts back to your vehicle overfilled with refrigerant, would. Requires it of things i have taken my car AC to find out that you are a! And even then it will start out ice cold same situation conditioner stopped cold. Safes so we added some refrigerant? we had the AC but still... Quirky and hard to tell for sure would be considered fairly large detect a leak in the gets. Systems have a change in continuity or voltage at the store the smoke and hissing noise away... Re a DIYer, you could start by checking to see where relay. Line leak somewhere in your compressor last year as well the job it. First step is diagnosing the root cause of the fan turns on when you the. Very unpredictable and it is not blowing cold after 40mph what could the that. 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If its the vacuum controlled dampner in the condenser, orifice tube accumulator! Lost as to why rely on their air conditioners to cool the refrigerant so i am thinking it could from. I Pl bought online telling it to an A/C specialist sitting in a few potential causes of to...

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