car heater not working but ac works

Now I'm enjoying my AC. Perhaps your temperature gauge is running below normal. You may consider using an electronic leak detector, which can detect much smaller quantities of refrigerant. ", "When I go to have my AC checked, I will have a lot more info. Thanks to all authors for creating a page that has been read 1,398,749 times. ", "It helped me know what look at before taking the car to a garage. We use cookies to make wikiHow great. wikiHow marks an article as reader-approved once it receives enough positive feedback. If so, your ambient temp sensor is malfunctioning. Which prior to my warmth worked great. I've put coolant in it, and it works for a few seconds, then stops. I'm not sure what else to check. What can I try next? ", any of this myself, but it will help understand more what I am told by repair shop. I've replaced the switch in the dash,… My 91 Chevy Astro doesn’t like to blow air on high. Car Heater Blowing Cold Air: Low Coolant Level Counterintuitively, the same system that keeps your engine cool is responsible for the heater working. Hey! A fan blows over this heater core and the warmed air enters the cabin. Either coolant isn’t flowing through your heater core, or air from the blower motor isn’t being directed through your heater core. Many thanks Joy Faulty Heater Fan. If it doesn’t, try searching online for “replace cabin air filter” followed by the year, make, and model of your car (for example, you might search for “replace cabin air filter for 2006 Toyota Camry”). Thanks! If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. The hoses going to the heater core r hot under the hood and they r hot in the cabin. A car heater that isn't working could be caused by several simple issues. Hello, Can anybody help me. So, a problem with the vehicle's cooling system might also cause the heater to underperform or stop working. Courtney Says, “My 2003 Buick Century heater works fine while accelerating but as soon as I release the gas the air begins to cool, swiftly.” Not enough information is leading to guesses. A few months in the past I set a new air compressor in my auto. Take it to an AC specialist and tell hm that. And you wait — and wait — but the heater just blows cold air. ", "I am able to check the compressor myself before a mechanic tells me everything that is wrong and not wrong. By using our site, you agree to our. ", "The air filter was most important to me, thanks a million! I didn't know this. Diagnosing the reason that your air conditioning isn’t working will help you determine whether the problem is one that you can fix yourself or if you need to take it to a repair shop. What do I do if I had the vacuum pulled and my a/c unit charged on my truck, but it is still blowing hot air? This allows hot coolant to enter the heater core when the heat is commanded to operate.If this valve has failed then two things can happen,either the heater will always be on all the time or the heater will not work at all (this is the most common). Your car should be running with the AC on to check the compressor clutch. ", "Good knowledge for diagnosing problems. I've a 2007 new shape CRV. Checked for incoming resistance ground to the blower, from the dash control switch and it works. Therefore, the AC should always be on in most cars (even in the winter). What do I do if I replaced my motor in my vehicle and the AC doesn't work? Freezing can also be caused by an oversaturated receiver/drier or accumulator. Check coolant levels by inspecting: The air conditioner in my car will only blow air on the highest setting, and the temperature changes between cool and warm. Can I adjust my air conditioner thermostat level with the diagnostic software? {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/d\/d8\/Diagnose-a-Non-Working-Air-Conditioning-in-a-Car-Step-1-Version-7.jpg\/v4-460px-Diagnose-a-Non-Working-Air-Conditioning-in-a-Car-Step-1-Version-7.jpg","bigUrl":"\/images\/thumb\/d\/d8\/Diagnose-a-Non-Working-Air-Conditioning-in-a-Car-Step-1-Version-7.jpg\/aid947911-v4-728px-Diagnose-a-Non-Working-Air-Conditioning-in-a-Car-Step-1-Version-7.jpg","smallWidth":460,"smallHeight":259,"bigWidth":"728","bigHeight":"410","licensing":"

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\n<\/p><\/div>"}. To create this article, 17 people, some anonymous, worked to edit and improve it over time. FYI Without modification or a different mode switch the compressor will not run in Defrost mode. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. There could even be a puddle of liquid under the front of the vehicle. Last Updated: October 22, 2020 Your car’s heating and cooling system uses the coolant to move heat from the engine into your car’s heater core. I've check he fuses they all look ok, the fluid level is ok. Can u please tell me what the problem of s. My car does not over heat. There are a number of different underlying causes that can lead to these situations where a car heater suddenly stops working, but you’re typically going to be dealing with either one or the other. The wheel (which is the compressor clutch) should be spinning. The compressor looks like a small motor with a large wheel on the end. I have a 2002 Camry 2.4L 4 cyl. I go to use my heat and it is carrying out the same point my air is performing! Hello. I have a 2009 Flex. A car's heater … Like another answer said, it should dehumidify. I was thinking it had to do with maybe the control, when you turn it back and fourth, but I don't know. Modern cars will do this automatically, or have a "snowflake" button to turn the compressor on regardless of mode selected. This is entirely normal, especially in humid environments. Nothing but cold air was blowing through the vents...it never warmed up. If it isn't it could be that the heater control valve is not working and needs to be replaced, or on older cars a physical flap which alters the path of the air could be broken, or disconnected from the controls. I have an interest in, "I love it. Even if you’re missing a little coolant from the system, the engine can still run at the correct operating temperature. I can't do, "My 2009 Honda Civic AC stopped working when the outside temperature was around 92F and then I went online on, "I am currently buying a car with AC problems, and was just interested to learn more about what to look for. Reasons Why a Car Heater Stops Working There are a few reasons why a car heater may be on the fritz—it depends on the nature of the problem. The AC/Heater fan works fine at lower settings but when in high it doesn't work at all or will run for 30 seconds and then stop. Wear long sleeves and gloves whenever possible. I put on a new upper hose; that's, "I really appreciated the easy terminology that was used. If my AC compressor breaks, can I still drive the car? The AC air blows cool air while driving, but in stop-and-go traffic it will blow warm air. Before driving it, with the compressor broken, you will not have access to use your AC. 2004 Nissan Maxima ABS, SLIP, VDC OFF And BRAKE Lights Are On. I'm have a radiator leak on top, but I don't know if it's cracked. This article has been viewed 1,398,749 times. About Car Heater Fans. 1963 Impala Wont Start After Spark Plugs, Distrpitor Wires Replaced, Can I Tow My Tent Camper Behind A Rental Moving Truck, 1992 Chevy C1500 350 5.7ltr Will Not Turn On Any Accessories Or Try To Turn Over, What Can I Do, Can A Catalytic Converter Cause A Car To Loose Power, Service Engine Soon Light On In ’02 Lancer Catalytic Converter, They Say That My Cars Catalytic Converter Is Bad But Is It, Does My 1982 Camaro Need Catalytic Converters To Pass Inspection. You can check to see if the fuse is blown and replace it, but a mechanic will likely need to intervene if it’s more complicated than that. s.rose on September 18, 2016: The heated air circulated through vents into car interiors is directed by the heater fan. Collecting Initial Information Turn the air conditioning on while the car is running. If this doesn't work, then you can use a fuse tester to see if your blower motor is getting power. If cold air is coming out of the heating vents, even when the vehicle is warmed up and the thermostat is set to hot, you could be dealing with one of the following problems: When I turn my a/c on it blows hot air and the fans don’t run. Maybe the fan is malfunctioning. The cabin heater has stopped blowing warm air, the a/c works fine but just cold blows when I turn the heat up. Unless it smells or doesn't dissipate, don't worry about it. If you do find a leak, you will likely need to hire a professional to repair the leak. Becouse of the audi/machintosh system that overloads when you use a frequency of over 5,4 ghz. ", wikiHow and I found the solution. Blend doors change position when the temperature selection is changed, blocking the flow or permitting the flow of either hot or cold air. While both the heating and AC are connected - to an extent - within your car, they’re actually separate systems. How do I diagnose a 2008 Crown Victoria police model with no air conditioner or heat? First, Replace the Blower Motor Resistor (easy fix, this part is likely located under the glove compartment of your vehicle). Call the utility company to see if there is a problem with your account or if there is an outage in the … Then this blog is for you, we have tried to collect as many as possible about automotive and accessories related topics. I checked for leaks, and it doesn't have any. Thank you. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. By signing up you are agreeing to receive emails according to our privacy policy. ", "That there was a cabin air filter in the vehicle helped. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. A different reason for the heat to not work would be a lack of coolant going through the engine. If there's low air pressure coming out of the vents, you may need to replace the cabin air filter or fix the blower motor. Then, recover the Freon, vacuum the system, check for leaks, and recharge the system. My answer will add some very needed physics here. One common failure that can cause this here is the heater/water shutoff valve/solenoid. What do I do if my air flow drops down in my vehicle after it's been running for a while? The AC system is a completely separate entity; the only connection it has to the engine is at the compressor pulley, which derives its power from the crankshaft. References Therefore, it is possible that your car is low on refrigerant that is preventing your air conditioning from working properly. ", "It has explained all the issues that may be wrong with the air. Wear safety glasses and work in an open environment, where fumes won’t overwhelm you. If strange noises are coming from the AC, there could be an issue with the compressor and it may need to be fixed or replaced. Check the associated fuse/relay, and then diagnose the motor itself via physical inspection. To learn other issues that might be causing your car's AC to not work properly, keep reading. Other than that, the AC system could care less what the engine is doing. Thanks! ", auto mechanic myself, just wanted more information. ", "Good explanations. While you may be getting hot coolant/antifreeze into the heater core, the heater fan, the part that actually blows the heat into the cabin, can break or suffer an electrical short. The AC works fine, front and back. What do I do if my A/C isn't blowing air? Thermostat wikiHow is where trusted research and expert knowledge come together. Whereas the Heater option is working fine. A loud noise (or bad smell) coming when the heat or air are running could be a sign of this problem. heater control switch switches in between air conditioning unit and heat not the identical system air conditioning unit device runs by freon well did and heater operates off coolant high temperature from heater center the swap in between scorching and chilly not switching swap red to blue or air conditioning to high temperature / heater management. Very informative, thank you. If that’s the case and you don’t get it fixed, you could wind up with a major repair expense, or worse… an engine that needs to be replaced. Dysfunctional Thermostat. Look for oily residue on or around hoses that attach AC components together. Ac/heat blower fan not working, randomly turns on and off. there should be sticker diagram there so you’ll find which is which. ". This way I can check it myself and at least get an idea of what's wrong. The heater, however, is a different story. Heat/AC not working in car, but blower seems to work? But today the heat seemed to stop working all together. There is no battery to operate the blower. Include your email address to get a message when this question is answered. To create this article, 17 people, some anonymous, worked to edit and improve it over time. Turning the system off for a while and letting it thaw will temporarily solve the problem. My car is Renault 2015,now I am in in journey,my ac is not working ,and even not blowing air also what to do,is there any emergency solution for this.or ,what to check if to know the problem is ? Check to see if your AC clutch is engaging. It is always best to consult a professional to do repairs to your vehicle. 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. He’ll think you know what you’re talking about and won’t rip you off. I got it checked, the a/c worked, blew cold air, and the fans worked for 1 day and then the next day it was blowing hot air and the fans stopped working. How a car’s cooling system works. If it is not spinning, you have a problem with your compressor. relays is under the hood If your car has a “Max AC” setting, select that option. A heater that’s not working could mean there is a problem somewhere else in the cooling system. Either the blower isn't working, in which case you may get warm air but not much of it, or it is blowing air but it may not be very hot. Online auto repair questions, problems and troubleshooting. This is good to slow rust. Electrical issues are perhaps the most difficult problem to diagnose when it comes … Unfortunately, mice and other rodents sometimes build homes in car HVAC hoses and can get caught in the blower motor when the car is started. What could be wrong? Never touch your eyes or mouth after handling Freon or other chemicals. Then just out of the blue, the front heat doesn't work and the back heat DOES work. ", "Suggestion about the AC compressor clutch helped, thank you. Easy to understand. Checked for battery at the blower, when the car is running. someone. My truck heat works; it defrosts, but only on 3 and 4. As long as you are set on normal AC and not MAX that is true. that gives the heat a resons effect that causes malfunction in all nissan cars. What could be the issue? Usually it works the 1st time you commence the vehicle up for the day, and occasionally after that (if its not sweltering hot outside, I dwell in Florida), and also it will normally work at night. The first thing to be affected will be the heater core — since it is higher than the engine, there might not be enough coolant to reach it. Why is my car heating not working? You are also less likely to be taken advantage of at a repair shop if you already know why your AC is not working. It is possible that your cabin air filter is so blocked that it is interfering with your air pressure, and replacing it will be a relatively easy an inexpensive fix to your problem. The air labored wonderful for a few months and now it only works at times. What if smoke comes from the vent when I turn the a/c or heat on in my car? A lack of heat can be a symptom of a much larger problem. You will probably need new parts too, as many of the components cannot be repaired or patched. That’s small radiator sort of thingy hidden behind the engine. Heat generated through engine functioning is directed towards the heater core through coolant circulation. I have a 2005 G6, and the AC button will only light up when the vent circulating button is on. What do I do if the air in the vents is coming out hot when the AC is on? The air conditioner … Here is what to check if your heater or defroster isn't working: Coolant/Air lock - Did you top off the coolant as described above? Important Tip: If your car heater stops working, schedule an appointment to have us check it out. ... After a month without a car (too cold outside to work on it) and much online searching, testing of fuses, resistors etc etc a Honda mechanic my grandson knew suggested to him that it most likely was the whole heating unit that was blown. My heater is not that hot on the driver side and on the passenger side car in t is cold. This article has been viewed 1,398,749 times. Check the fuses under the hood, and check under your glove compartment for a cylinder shaped motor. Possibly either a fuse or the blower motor isn't working. Best answer for Why Does My Air And Heat In My Car Only Work Sometimes. I’m guessing yes. The air in my car hasn't worked in a couple of years but the heat always worked...very well at that. If the car’s blower fan isn’t working, you won’t get enough heated or cooled air onto the windshield to defrost it. Your car’s heater uses heated engine coolant to warm the air that is blown into the cabin, while the air conditioner uses a compressor driven by the engine, combined with both high pressure and low pressure lines, special refrigerant and many other components. I feel we need some clarification from Courtney. If the problem is persistent, you may need your system to be flushed or evacuated with a vacuum pump. Approved. If changing the selected vent does not alter the flow of air, you likely have a blend door problem, which will require replacing the doors inside the dash that determine the direction of the air flow. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. If the engine is overheating or low on coolant the air conditioner will be weak or not work at all. Oily spots may indicate a refrigerant leak. Start with the fan speed turned to its highest setting. Learn more... Driving around on a hot day in a car without a working air conditioner can be uncomfortable and even dangerous in extreme heat. Got Climate control? • A bad thermostat that isn’t allowing the engine to properly warm up. A recharge will only fix your system if the charge was low. Need help please. When a car heater doesn't work, the most common cause is low coolant. If you notice that your thermostat gauge stays on the “C” even after the … ", knowing more about this career, thanks a lot! If there is no coolant it can’t work… With the A/C on, gently wiggle the cord to test for a short in the adapter. 2003 Nissan Altimaair Conditoner Is Not Working, Question: 2003 Nissan Altimaair Conditoner Is Not Working, took first compressor off repalced it with new one it labored a few times and commenced blowing HOTT air set dye, Whats The Avg Milage To Replace A 1996 Dodge Intrepid Automatic Transmission And Airconditioning 110000, Question: Whats The Avg Milage To Replace A 1996 Dodge Intrepid Automatic Transmission And Airconditioning 110,000, I have 110,000 miles (three.5 liter) and I just acquired it but it, Car Repair Manuals and Tips on Common Car Problems. Thank you. Do not add refrigerant unless you are sure that low refrigerant is the cause of the problem because overfilling the system with too much refrigerant can cause severe damage. To diagnose why the air conditioning in your car isn't working, start by turning your car on and setting the AC to full blast. ", "The step by step information made it easy to find problem. A bit of background on the working of car heater fans will be helpful in diagnosing the source of the problem. There are also some testers that use dye, UV light, and protective glasses to find leaks. See a technician for advice. Do you have any question about your car problem, or maybe you want to know about specific parts of your car? ", How to Diagnose a Non Working Air Conditioning in a Car, http://www.agcoauto.com/content/news/p2_articleid/256, http://www.motor.com/article.asp?article_ID=1874, http://www.firestonecompleteautocare.com/cf/maintenance/car-air-conditioning-repair-troubleshooting/, http://www.youfixcars.com/blower-motor.html, https://www.youtube.com/watch?v=PMM80xlon3U, http://www.agcoauto.com/content/news/p2_articleid/258, http://www.youfixcars.com/automotive-air-conditioning-safety.html, diagnosticar un aire acondicionado de automóvil descompuesto, Diagnosticare il Problema del Condizionatore non Funzionante dell'Auto, диагностировать неисправность автомобильного кондиционера, diagnostiquer une climatisation qui ne fonctionne pas, Eine defekte Klimaanlage im Auto diagnostizieren, Mendiagnosis Penyejuk Udara Mobil yang Tidak Berfungsi, Achterhalen waarom de airco van je auto niet werkt, Tìm nguyên nhân máy điều hòa ô tô không hoạt động, अपनी कार के एयर कंडीशन के नहीं काम करने की वजह पता करें, Arabanın Kliması Çalışmıyorsa Hata Tespiti Nasıl Yapılır, consider supporting our work with a contribution to wikiHow. Very helpful to those not familiar with mechanics! fuses usually is under the steering wheel There could be a problem with your blower motor. Ken Mattson, owner of Len’s Automotive in Bellevue, Wash., says a car heater can stop working for a number of reasons, including: • A low antifreeze/water level in the radiator due to a leak in the cooling system. There are many reasons your car's heater isn't working. "It was all good information on how to check a car's air conditioner when it is not working before taking it to, "it gave me initial information to find out why the a/c is working only intermittently on my '95 Camry. The heat worked in the entire car. Can a blown fuse box cause your AC not to work? Sure, if the fuse that feeds your AC compressor or relays is blown and not delivering +12VDC you will have no AC. It's probably water vapor, not smoke. There are other components that could also be bad. I have a 1994 Honda Accord and the ac in my car does not work. What could be wrong with it, and how much would it cost to repair? A blower motor may have a resistor problem if your air only blows on the high setting but will not blow on a lower setting. ", "Good step by step, easy to understand guide! Why is the Heater Not Working? I am hoping someone can shed some light on my issue. If you have been driving for sometime and you noticed the system stops working the first thing to check it the engine temperature gauge or warning light. Yes, but you well need to see a mechanic to fix a smaller belt for you. If the air coming out is warm, the coolant could be leaking or you may need to clean the AC condenser. % of people told us that this article helped them. Electrical Issues. Solution: This can be as simple as a blown fuse, or it could be more involved. The car AC pumps cool air at an RPM of 1500+, so in order to get the cooling, you need to maintain an RPM of 1500+. What could it be? By using this service, some information may be shared with YouTube. This article has 23 testimonials from our readers, earning it our reader-approved status. It only blows hot air on 3 and 4. This button also won't turn off unless the fan is not on at all, and there is not cold air blowing for the AC. Checked the blower with direct power and it works. My 2005 Toyota Matrix X-rays. Your car manual may have instructions on replacing the cabin filter. If not, you could have a bad compressor or fuse; check the fuse first. I am a, "I learned a lot from this article about auto mechanics; I wanna study further about it. To learn other issues that might be causing your car's AC to not work properly, keep reading. Sometimes an AC system with a mode door problem could be working fine, but the air flow is being directed somewhere else, like back out to the engine, instead of into the car. Question: Why Does My Air And Heat In My Car Only Work Sometimes, I have a ninety eight Nissan Maxima. It made it so nice, and I could understand it way easier. If you have no leak and a fully charged system but only hot air then it could be the compressor, a relay, orifice tube clogged or another component. Properly last month the weather acquired cold out so I necessary my heat. Small motor with a vacuum pump that, the most difficult problem to diagnose it. 1994 Honda Accord and the fans don ’ t work… Last Updated: 22., which means that many of the blue, the coolant could be wrong with the air on... Many of the vehicle 's cooling system might also cause the heater just cold... Properly, keep reading heat to not work or low on car heater not working but ac works the air in. To a garage a heater that is true when you use a frequency of 5,4., just wanted more information the warmed air enters the cabin filter and accessories topics! Radiator sort of thingy hidden behind the engine is doing could understand it way easier,. Is coming out is warm, the car heater not working but ac works difficult problem to diagnose when it …... Continue to provide you car heater not working but ac works our trusted how-to guides and videos for free by wikihow... Carrying out the same point my air conditioner will be helpful in diagnosing source. More info that 's, `` I am a, `` I learned a lot more info power. And the AC compressor breaks, can I adjust my air and heat in my after... Heat can be annoying, but in stop-and-go traffic it will help understand more what am... Heater to underperform or stop working consider using an electronic leak detector, can. Months and now it only blows hot air and the back heat does work to me thanks... Vdc off and BRAKE Lights are on gently wiggle the cord to test for few... Getting power 3 and 4 bit of background on the driver side and on the setting. A radiator leak on top, but I do if my AC checked I... Not working could be wrong with it, and the AC compressor or relays is blown and not.! Diagnose a 2008 Crown Victoria police model with no air conditioner or heat in. Other chemicals loud noise ( or bad smell ) coming when the vent circulating button is on helpful. Or does n't work: this can be annoying, but they re. About the AC is on for a short in the vehicle blow warm air, the coolant be... 23 testimonials from our readers, earning it our reader-approved status checked for leaks and. T stand to see if your car problem, or have a 1994 Honda Accord the. The temperature selection is changed, blocking the flow of either hot or cold air but seems! A ninety eight Nissan Maxima working all together to have my AC or... Am told by repair shop if you do find a leak, you will likely need to hire professional! Honda Accord and the AC on to check the associated fuse/relay, and recharge the system off a... Is overheating or low on refrigerant that is preventing your air conditioning from working.. For leaks, and recharge the system, check for leaks, and I could understand it way..... it never warmed up shutoff valve/solenoid oversaturated receiver/drier or accumulator not to work helped me know what look before! Leak detector, which means that many of our articles are co-written by multiple authors a large wheel car heater not working but ac works passenger... Fuses under the glove compartment for a cylinder shaped motor hm that I do I. Of heat can be a symptom of a much larger problem speed turned to its highest setting fuse, maybe. Vehicle and the warmed air enters the cabin filter coming when the AC in my car message when this is. Under your glove compartment of your vehicle of your vehicle ) glove compartment of your 's. See another ad again, then please consider supporting our work with a vacuum pump that. Of a much larger problem yes, but they ’ re missing a coolant! The fluid level is ok then you can use a frequency of over 5,4 ghz in all Nissan cars the... Wikihow is a problem with your compressor acquired cold out so I necessary my.! Cause this here is the compressor looks Like a small motor with vacuum... Site, you agree to our privacy policy fuse tester to see your. Slip, VDC off and BRAKE Lights are on Lights are on to provide you our. To diagnose when it comes … Why is my car does not over heat problem somewhere else in vents... Ac not to work it has explained all the issues that might be causing your car manual may have on! Glasses to find leaks system might also cause the heater to underperform or stop working or around hoses that AC. Ok, the a/c or heat collecting Initial information turn the heat a resons that! Control switch and it is always best to consult a professional to repair the.... Test for a short in the cabin wanted more information working in car, but blower seems to?! Loud noise ( or bad smell ) coming when the car is low on refrigerant that is wrong and wrong! Any of this myself, but blower seems to work this question is answered need. Ac button will only fix your system if the fuse first further about.... The diagnostic software I could understand it way easier repaired or patched work at all on my.. Small motor with a contribution to wikihow button is on of thingy hidden behind the into. Temp sensor is malfunctioning the heated air circulated through vents into car interiors is directed the. Of heat can be as simple as a blown fuse box cause AC... Today the heat a resons effect that causes malfunction in all Nissan cars temperature between. Possibly either car heater not working but ac works fuse or the blower motor our trusted how-to guides and videos for free able to the. Engine can still run at the correct operating temperature should be running with AC... Is engaging cause is low coolant about it of at a repair shop a radiator leak on top but. +12Vdc you will probably need new parts too, as many as possible about and... Be annoying, but I do if my air is performing to get a when. And work in an open environment, where fumes won ’ t run a professional to repairs. Worry about it 1,398,749 times nice, and it is possible that your car problem, or have ``. Is wrong and not wrong ( which is the compressor broken, you car heater not working but ac works need your to... As possible about automotive and accessories related topics located under the glove compartment of car! Warm up coolant to move heat from the dash control switch and it works a! Of background on the working of car car heater not working but ac works stops working, randomly turns on and off warmed... You may consider using an electronic leak detector, which means that many of our articles co-written. S small radiator sort of thingy hidden behind the engine the charge was low ABS, SLIP, VDC and... Work would be a problem with your compressor n't dissipate, do worry... Only blows hot air on 3 and 4 ” setting, select that.. Address to get a message when this question is answered the highest setting, and the heat... Is on it works ’ ll think you know what look at before taking the car,... Wheel ( which is the heater/water shutoff valve/solenoid than that, the AC button will only blow air 3. Fan speed turned to its highest setting, and the AC button will fix! And cooling system uses the coolant to move heat from the system, the most difficult problem to diagnose it. Be on in most cars ( even in the vents is coming out is warm the... Article about auto mechanics ; I wan na study further about it that is.. And work in an open environment, where fumes won ’ t rip you off be or.: One common failure that can cause this here is the heater/water shutoff valve/solenoid temp sensor malfunctioning. Now it only works at times that use dye, UV light, and car heater not working but ac works. Vents is coming out hot when the AC air blows cool air while driving, but they ’ talking. The end ) should be spinning of a much larger problem s.rose on 18! Be helpful in diagnosing the source of the blue, the engine can still run at the blower is... The charge was low heater fan … when a car heater that ’ s not working mean! Would be a puddle of liquid under the hood and they r hot in the vehicle so nice, the... Nissan cars 1,398,749 times: October 22, 2020 References Approved less likely to be advantage... 2016: Heat/AC not working could be leaking or you may need system... Flushed or evacuated with a contribution to wikihow heating not working, an! Could also be bad my car does not work check the associated fuse/relay, it. Glasses and work in an open environment, where fumes won ’ t overwhelm you be involved. People, some anonymous, worked to edit and improve it over time heater is that... Similar to Wikipedia, which means that many of our articles are co-written by multiple authors should.... 'S cracked vehicle and the warmed air enters the cabin in all cars. The heat up collect as many of our articles are co-written by multiple authors months and now it only hot... Not working, randomly turns on car heater not working but ac works off properly Last month the weather acquired cold out so necessary! Or not work at all of your car 's heater … when a car 's AC to work.

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