I have a 99 Acura TL. Troubleshooting Mon Condenser Fan Problems. When you first start the van and turn on the AC, the condenser (radiator) fan does not start with it. Car Ac Condenser Fan Not Turning On. Operating the fan is a decision with many variables, and in a well-designed system it happens when hot outside and not moving, and perhaps after a delay (the radiator doesn't get hot immediately). How do you distinguish two meanings of "five blocks"? A condenser in a car air conditioner ensures that you get cool air from the vents of your air conditioner when you turn the AC on. As the fan is designed to prevent the condenser from ever getting this hot, warm air from the vents is one of the first signs that the fan may not be cooling the condenser. What is the value of having tube amp in guitar power amp? In systems involving heat transfer, a condenser is a device or unit used to condense a gaseous substance into a liquid state through cooling. In some cars and light trucks the fan is turned on either if the a/c compressor is operating regardless of the driving speed or if the engine temperature reaches a set level (200 or more). The diagnosis of a bad AC condenser fan is quite simple. Skyvisions , ASE Certified Technician Depending on the make and model of a vehicle, the estimated average cost of replacing a switch is $400 to $500. 2. The best remedy for this is getting your A/C serviced. Well the short answer is yes. And the fans will come on anytime your ac compressor is working. Lastly, some condensing units come with built-in high-pressure switches. If you feel that your vehicle’s air conditioning system is not simply failing to cool the air, but actually giving off warm air, this could mean not only that the air is not being cooled at all, but also that the condenser may be overheating. A faulty cooling or condenser fan may cause high pressure to rise and idle to falter. In a nutshell: The radiator fan comes on so the A/C works at its highest efficiency. You can easily find the AC fan by opening the hood of your car. Robotics & Space Missions; Why is the physical presence of people in spacecraft still necessary? If you see that your condenser and fan are dirty, you must have them serviced. If Section 230 is repealed, are aggregators merely forced into a role of distributors rather than indemnified publishers? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Turned on and off A/C. This article pertains to all vehicles. Should the condenser thermo fan run continuously while the air con compressor is on? Making statements based on opinion; back them up with references or personal experience. The condenser fan does not turn on. Do I need to get it fixed? The fan blades on the fan that is not coming on spin freely by hand ( car engine off of corse) then when the fan is unplugged and a test light is used the unplugged end will light up on the test light on one terminal but when plugging the connections together the fan does not come on still. so I have no clue whats going on also car sometimes over heats so any help on what to look for The A/C requires the fan to run as part of the heat exchange process. What is this jetliner seen in the Falcon Crest TV series? The motor and fan normally come off as an assembly, but you may also have to remove the shroud and sometimes the radiator. my ac clutch coil is frequently failing ,its the second time i changed it but still its failed Can you edit your question and provide more details? The AC condenser is designed to actually release the heat that the refrigerant absorbs as the air passes through the evaporator. Je veux être Calife à la place du Calife! So, the A/C will move the heat extracted from car interior and the heat produced by the A/C to the radiator where airflow will cool the radiator. I have already changed out the fan, and still no go. Outside temp today is 88, and car is garaged. Step 1 - There are primarily two types of engine radiator cooling fan, electric and manual. Not sure what your question is here. @RonenFestinger - I don't know if "malfunction" is a word I'd use to describe it, but yes. After all, who wants to arrive at work drenched in sweat? Only when the car is stopped or also when travelling at significant speed? Temperature will often determine the time that a radiator fan starts up. Does turning fan speed down affect AC compressor load, Radiator fan not turning on automatically. The condenser fan (if it has a dedicated fan) or the radiator fan most always comes in (with AC on) when the compressor discharge pressure (or, alternatively, the liquid line one; look for where a sensor or a switch is located on the high pressure line) rises over an operative threshold. So if it NEVER comes on when idling you definitely have a problem. My Model S cools every bit as good or better, and it registers just 68db. 29,399 Posts #3 • Mar 12, 2010. Condensers are used for efficient heat rejection in many industrial systems. Most modern cars have done away with the fan clutch and are equipped with a pair of electric fans, mounted forward or behind the radiator and condenser. If the condenser heats up too much, it cannot convert the refrigerant needed to cool the air. In addition, condenser cleanliness and proper airflow is critical to proper A/C system operation, it dramatically reduces compressor head pressure so less wear on compressor. (30th December 2008, 20:09 #10: toiingg. The fan in front of the condenser is only operated when the high side pressure is above 220 psi. Why does my radiator attract wasps/yellowjackets? The air conditioning works fine and my car does not overheat ever. Condenser fan not working ac toyota nation forum troubleshoot electric cooling fan symptoms of a bad or failing cooling fan resistor symptoms of a bad or failing ac condenser fan yourmechanic 2004 honda accord radiator coolant fan not turning on. In so doing, the latent heat is released by the substance and transferred to the surrounding environment. When the AC is on, the condenser fan automatically turns on when a high temperature is reached to cool the condenser and when the optimum temperature is reached, the fan automatically turns off. even my ac condenser fan is working slow. So I would have it checked for any leaks and clean the engine and engine compartment. Home » Air Condition » AC Condenser Fan Symptoms, Function & Replacement Cost, In Air condition by Magnus Sellén3 October, 20204 Comments. Recently I have noticed my radiator fan stays on full blast after the car is shut off and my keys are out of the ignition. Cornelious32 8 years ago #1. The fan that cools the condenser will not come on at all with the A/C. I have a 2009 Honda accord 2.4l I have 2 fans but only one comes on when a/c is on. What happens when all players land on licorice in Candy Land? Join Date: Oct 2006. This is the first and most important sign to look for. rev 2020.12.18.38240, The best answers are voted up and rise to the top, Motor Vehicle Maintenance & Repair Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. A/C on triggers a high fan or hard running engine can do the same. But it's not getting hot enough to turn on the fans. To keep the condenser cool, a fan is mounted directly at the front of the condenser to maintain the temperature. If you have an Electrical Test Kit and know how to use it, you can check whether your fan is receiving power at all or not. Once it reaches a 200 plus or minus depending on vehicle the fan will kick on. It is what sends the signal for the fan. Furthermore, these high-pressure switches are commonly manual reset. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. I downloaded a db meter and it registers 80db directly in front of the car. When you HVAC fan on with AC and heat off, does it go past evaporator? How was OS/2 supposed to be crashproof, and what was the exploit that proved it wasn't? This could mean that the condenser fan isn’t working at all. Typically, you will also refill your AC system after a replacement, which is an additional $100. Normally operation with A/C off fan will cycle in low as required by the engine temp spec requirements. Should the helicopter be washed after any sea mission? Location: Calcutta. (I guess that's more or less semantics, but hopefully you get the point.). Looks like everything's running again! I get a weird kind of howling clicking sound when air condenser fan comes on only when the AC is on ( at least i think its the condenser fan). If the fan didn't come on, you'd still be warm inside. the ac clutch is working fine and it has proper freon but the ac is blowing warm and the ac comp head pressure is high. The condenser looks very similar to a radiator, with finned tubes inside, but they are slightly thinner than radiators, as its function is to give off heat instead of absorbing it. With several components required to run the A/C system, you might have trouble figuring out what part is to blame. In most cases the fan only comes on while the A/C compressor is pushing refrigerant through the system. One problem that you may experience with your outside air conditioner is when the fan does not come on. Should the radiator fan operate while the car is moving? Motor Vehicle Maintenance & Repair Stack Exchange is a question and answer site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles. But the fan will come on once the motor has reached temp for the radiator. Over time, this can cause your car to start emitting only hot air. Problems With the Cooling or Condenser Fan. That is a built-in safety to protect the unit. That's why on cool days, with the car stationary, it can also not turn on at all or come on only for a few seconds a time. 2000 Dodoge caravan, radiator fans both come on when engine gets hot enough but, condenser fan will not come with air conditioning turned on. When the AC is on, the condenser fan automatically turns on when a high temperature is reached to cool the condenser and when the optimum temperature is reached, the fan automatically turns off. You sense a burning smell when the AC is on, Check for any obstruction near or in the fan, AC Compressor Clutch Symptoms & Replacement Cost, R12 to R134a Conversion, Information & Necessary Parts, Heater Blower Motor Resistor Symptoms, Function & Location, Radiator Fan Symptoms, Function & Replacement Cost, 5 Reasons Why Your Radiator Fan Is Not Coming On, Brake Caliper Symptoms, Function & Replacement Cost, Sway Bar Symptoms, Function & Replacement Cost, EGR Temperature Sensor Symptoms, Function & Replacement Cost. 2 Posts . Since the condenser is one of the main components of a car air conditioner, the system will not function as it should without it, and its effects can also be dangerous for other parts of the engine. Also been driving drifting for the last 6 years. 3. Your cooling fan comes on when the car reaches a particular temperature. The trigger is the thermostat in the radiator of your vehicle. 2013 Chevy Cruze A/C not working and possibly radiator fan, New Radiator Fan Issues in my 2010 Ford Focus. Here are some symptoms that you should look for to determine if your AC condenser needs to be repaired or replaced. We have some steps to help you diagnose a bad A/C condenser so you can get on with your life. What should you know? fan is basically mounted on the face of the condenser, often time’s dirt and debris build-up which can easily clog the condenser and block the fan. I’m here to give you answers to all your automotive questions and I hope that you enjoy our content. A simple test can help you do some quick circuit checks, if necessary. When moving, there is natural airflow, so the radiator fan should be unnecessary. The condenser is located right next to the radiator, near the front grill of your car. It has a sensor that detects the pressure that is being built up. A fan failure should generate a CEL. When the A/C comes on, the condenser fans soon follow and my X seems to have just 2 speeds, off and full blast. LuaLaTeX: Is shell-escape not required? This may indicate an electrical issue that will need to be fixed. Some have a pressure switch on the a/c line that will turn the fan on when the high pressure line reaches some point (180psi or more). site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. To learn more, see our tips on writing great answers. These fans operate automatically. Although the coolant fan switch is very small and sometimes over-looked, it is an incredibly important component to your car’s cooling system. However, it is recommended that you replace the fan, rather than merely repairing it, if it has been damaged. It is easy to spot a bad condenser fan, but you must consult a good mechanic to have your AC fan repaired or replaced. The A/C system cannot make the heat vanish due to laws related to the conservation of energy, it can only move it somewhere from inside the car. Thanks for contributing an answer to Motor Vehicle Maintenance & Repair Stack Exchange! To prevent overheating, AC condensers are equipped with a fan that turns on when the temperature becomes high enough. That's why on cool days, with the car stationary, it can also not turn on at all or come on only for a few seconds a time. The condenser fan is more likely to run when the car is idling. 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