If this isnât the case, the next car air conditioning troubleshooting tip is to see if there are any leaks. Replacing Struts On A Car – Step by Step Process! Over time, the AC cycles the air and turns it into a cool one. You can check for puddles under you car, as well as check the level of your Freon. In this part, we’ll learn how to clean car ac condenser coils, as this is the probable reason for your problem. And that eventually cools the refrigerant. I finally pulled over and tried turning ac button off and on and still no luck. My AC compressor seems to be engaged when issue is present though. My AC compressor seems to be engaged when issue is present though. When this happens, it restricts the flow of the air conditioner refrigerant in the line, which means there is a leak somewhere. Car Seats For Toddlers – Top 5 Models Comparison. That might damage the structure of it. Before answering the question, we would like to answer some of the questions that are closely related to the problem we are talking about –, If you have the answers in hand, let’s go through the solution that you need to do –. The compressor sends compressed liquid refrigerant to the expansion valve or orifice tube, just before the evaporator. Thankfully, in this handy guide, we’ll review each of these car AC problems in detail. Your car's air conditioning (AC) system is basically a heat pump, removing heat from the cabin and transferring it to the air outside the vehicle.The air conditioning compressor forces refrigerant through a loop of tubes and radiators. Now, clean the coil from the car ac condenser from both inside and outside. What could it be. Cold Air Blows Intermittently So you went for a road trip or a long drive, and after 30 minutes of driving realized that your AC suddenly stopped working or switched to blowing warm air. If you are uncomfortable doing the fix yourself, see a reputable mechanic. Hello. Ironically, the very thing that makes an air conditioning system convenient, easy to use and reliable is the thing that most often causes intermittent problems — electronics. The ac went out on us about 6 months ago so we had the compressor replaced. Well, you might call up a car mechanic and solve such a car ac cooling problem for the price of a few hundred bucks. Sometimes, the coil may get dirty and stay out of order. My wife seems to have the issue more often as she will move the temp nob vs vs me who sets on coldest temp and adjusts fan speed to ask for comfort. It's off and on sometimes it will blow cool than back to hot. Other possibilities include a faulty compressor, broken cooling fans, or an issue in your electrical system. No, your car AC didn’t forget to turn the air cooler. Ac button was on, LO temp setting, and it just blew warm humid air for about 10 mins. Before cleaning the condenser, clean the fin if there is any dust. Why AC blows warm air in car? If so, this could be what is happening. Sometimes, car air conditioner blowing hot air instead of cold air. Open up the fin, and let’s proceed to the next step. My 2004 Camry AC has started blowing warm air. But the pressure washer would apply a force on the fin which is around 600psi. What I haven't determined yet, is if it starts blowing warm air while it's running, or if it fails when it has been idol and starts up again due to temp increase. A blend door can also get stuck because of mechanical linkage or a vacuum line coming off, a switch going bad, or a number of other reasons. 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. Remember not to be too harsh with the cleaning. Luckily, there are some steps that you can take to solve this common issue. And now, immerse the condenser into the cleaning mixture. Does that mean it's a thermostat vs an AC issue? Compressor clutch engages/disengages, Sys has pressure. Be certain to be able to handle the fins with care, because they are pretty lightweight and made of light aluminum. If you’re done with both of the steps, take the coil out and clean it off with the best air blower for the car. Make sure to get the best car cleaning pressure washer with a pressure controller. The air conditioner in my car is functioning intermittently. What if it keeps blowing hot air all the time? Defective compressor; 3. Another way to determine why you are faced with a problem of car air conditioner blowing hot air is to see when the unit blows warm air. If it fails, it can allow the temperature door to not hold the right position. This will allow the ice to melt. What could it be. In other words, one day your car’s A/C is blowing cold air, the next day it’s warm air. The ac is blowing warm air intermittently after I replaced the relay. Now it’s time to take care of the stubborn and oily dust. Ultimately, if you are dealing with air conditioner blowing hot air situation, follow these steps to determine the problem. Blown clutch fuse; 9. 135000 and it starts fine. Make the mixture saturated enough. Inspect the components to determine where the leak is and seal them. So, make sure to have a pressure washer which is controllable. Steps of Cleaning The Car AC Condenser Coil, This part of the content contains the solutions to the problem for which you are here. There should be screws with that as well. But this problem that we are talking about, is quite a different one. How Would You Know If There Is A Problem? The AC light is not flashing. If you’re done with step 4, the debris and dust that are large and loose should be wiped away. 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