{"id":88002,"date":"2023-07-26T22:36:04","date_gmt":"2023-07-27T05:36:04","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=88002"},"modified":"2023-11-04T00:58:43","modified_gmt":"2023-11-04T07:58:43","slug":"why-wont-my-a-c-blow-cold-air-common-causes-and-prevention-tips","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/why-wont-my-a-c-blow-cold-air-common-causes-and-prevention-tips\/","title":{"rendered":"Why Won\u2019t My A\/C Blow Cold Air? Common Causes and Prevention Tips"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_7e0bc3-e0 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_7e0bc3-e0 > .kt-inside-inner-col,.kadence-column_7e0bc3-e0 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column_7e0bc3-e0 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_7e0bc3-e0 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_7e0bc3-e0 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_7e0bc3-e0 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_7e0bc3-e0{position:relative;}@media all and (max-width: 1024px){.kadence-column_7e0bc3-e0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_7e0bc3-e0 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_7e0bc3-e0 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-d73424  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-b837a6\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_eaff3d-9f, .wp-block-kadence-advancedheading.kt-adv-heading_eaff3d-9f[data-kb-block=\"kb-adv-heading_eaff3d-9f\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_eaff3d-9f mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_eaff3d-9f[data-kb-block=\"kb-adv-heading_eaff3d-9f\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading_eaff3d-9f img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_eaff3d-9f[data-kb-block=\"kb-adv-heading_eaff3d-9f\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_eaff3d-9f summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_eaff3d-9f\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>If your A\/C won&rsquo;t blow cold air, then your A\/C system might have low refrigerant levels, a clogged air filter, a broken A\/C compressor, a bad clutch cycling switch, a clogged condenser, or blocked hoses or valves.<\/li><li>Keep your A\/C blowing cold air by maintaining it regularly and replacing any faulty components.<\/li><li>You should also run your A\/C regularly to keep refrigerant circulating and keep components like the compressor lubricated.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Is your air conditioning (A\/C) system <a href=\"https:\/\/www.carparts.com\/blog\/car-a-c-not-cooling-5-reasons-why\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"refusing to blow cold air\">refusing to blow cold air<\/a>? It&rsquo;s no doubt a frustrating situation, especially during the hot summer months. To save yourself the discomfort, it&rsquo;s best to find out what&rsquo;s causing your A\/C to malfunction so you can repair any broken components as soon as possible.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Reasons Why Your A\/C Won&rsquo;t Blow Cold Air<\/h2>\n\n\n\n<p>Trying to figure out the answer to the question &ldquo;why Isn&rsquo;t my A\/C blowing cold air?&rdquo; can lead to a lot of back and forth, and it can get really frustrating, especially if it happens during the summer. Luckily, there are some common causes you can start with to make the search easier.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Low Refrigerant<\/h3>\n\n\n\n<p>If your car&rsquo;s A\/C isn&rsquo;t blowing cold air, then your vehicle might be low on refrigerant. Your A\/C system needs sufficient refrigerant in order to blow cold air. If it runs <a href=\"https:\/\/www.carparts.com\/blog\/can-a-car-lose-freon-without-a-leak\/#Causes_of_Refrigerant_Leaks\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"low from a leak\">low from a leak<\/a>, then your A\/C won&rsquo;t be able to convert hot air into cold air, leaving you with a stuffy cabin.<\/p>\n\n\n\n<p>Ignoring this issue can damage your A\/C system, so you&rsquo;ll want to fix whatever&rsquo;s leaking and recharge your refrigerant as soon as possible.<\/p>\n\n\n\n<p>Also, in the winter months when it&rsquo;s cold, your windshield will fog up because your vehicle&rsquo;s defrost feature needs the A\/C system to operate.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Clogged Air Filter<\/h3>\n\n\n\n<p>This is a valid thing to check and is very important, especially since most drivers don&rsquo;t change their air filters at proper intervals. However, if you have air coming out of your vents, then there is a chance that this is not the cause. If it was plugged solid, then maybe you would have little air out of vents.<\/p>\n\n\n\n<p>However, if you&rsquo;re lucky, then you might just be dealing with nothing more than a <a href=\"https:\/\/www.carparts.com\/blog\/dirty-cabin-air-filter-symptoms-and-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"clogged air filter\">clogged air filter<\/a>. Your A\/C system uses a filter to prevent pollen, dirt, and other debris from entering your cabin. This filter can get <a href=\"https:\/\/www.carparts.com\/blog\/heres-what-happens-when-your-cars-engine-air-filter-is-dirty\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"clogged over time\">clogged over time<\/a>, and you typically have to <a href=\"https:\/\/www.carparts.com\/blog\/how-to-change-your-engine-air-filter\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"replace it every 12,000 to 15,000 miles\">replace it every 12,000 to 15,000 miles<\/a>.<\/p>\n\n\n\n<p>If you haven&rsquo;t changed your air filter in a while, then it&rsquo;s highly likely that it&rsquo;s blocking the cold air from entering your cabin.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Broken A\/C Compressor<\/h3>\n\n\n\n<p>As the core of your A\/C system, the <a href=\"https:\/\/www.carparts.com\/a-c-compressor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"compressor\">compressor<\/a> is in charge of pressurizing the refrigerant as well as controlling the temperature and airflow of your A\/C. If it fails, then you&rsquo;ll sadly have to say goodbye to cold air for a while.<\/p>\n\n\n\n<p>The reasons behind a <a href=\"https:\/\/www.carparts.com\/blog\/bad-a-c-compressor-symptoms-diagnosis-replacement-cost\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"broken compressor\">broken compressor<\/a> can range from low refrigerant to an overheated engine, so it&rsquo;s important to have a mechanic check on your A\/C system if you think your compressor is the issue.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Bad Clutch Cycling Switch<\/h3>\n\n\n\n<p>If everything looks good with your compressor, then the culprit might be your clutch cycling switch. Your clutch cycling switch is responsible for activating your compressor&rsquo;s clutch, and if it gets stuck, your entire compressor will fail to operate and leave you with <a href=\"https:\/\/www.carparts.com\/blog\/car-ac-blowing-hot-air\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"hot air blowing\">hot air blowing<\/a> from your A\/C vents.<\/p>\n\n\n\n<p>In most modern vehicles, the A\/C system is much more sophisticated and does not use simple switches like the old days. However, the clutch cycling switch is a 2-wire switch, so make sure you do not mess with any of the 3-wire sensors or more.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>The clutch cycling switch is a 2 wire switch. Make sure you do not mess with any of the 3 wire sensors or more.<\/p><cite>&ndash;<a href=\"https:\/\/www.carparts.com\/blog\/author\/anthonyharlin\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Anthony Harlin, ASE Certified Master Automobile Technician\">Anthony Harlin, ASE Certified Master Automobile Technician<\/a><\/cite><\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\">Clogged Condenser<\/h3>\n\n\n\n<p>When was the last time you checked on your <a href=\"https:\/\/www.carparts.com\/a-c-condenser\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"A\/C condenser\">A\/C condenser<\/a>? Because it might be the reason why your A\/C in your car isn&rsquo;t blowing cold air. Sometimes, leaves, dust, and other debris can block your radiator cooling fans, preventing air from flowing to the condenser.&nbsp;<\/p>\n\n\n\n<p>This causes the refrigerant&rsquo;s temperature to increase and affects your A\/C system&rsquo;s ability to effectively blow cold air. A <a href=\"https:\/\/www.carparts.com\/blog\/bad-ac-condenser-symptoms\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"clogged condenser\">clogged condenser<\/a> can also cause your engine to overheat, so it&rsquo;s best to fix this issue as soon as possible.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Blocked Hoses or Valves<\/h3>\n\n\n\n<p>Unfortunately, if you&rsquo;re dealing with a clogged condenser, your A\/C hoses and refrigerant lines are likely to get blocked too. This can prevent refrigerant from flowing through your A\/C system and cause hot air to blow from the vents.<\/p>\n\n\n\n<div id=\"article-search-widget\">\n<div class=\"cp-search\">\n<div align=\"center\">\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/w_auto,dpr_auto\/carparts\/logos\/badge_wordmark\/full_color\/CP_LOGO_COLOUR_RGB\" alt=\"CarParts.com\" width=\"300\" height=\"56\">\n<\/div>\n<form id=\"cpsearchform\" name=\"cpsearchform\" action=\"https:\/\/www.carparts.com\/search\" method=\"get\" target=\"_blank\" accept-charset=\"character_set\" aria-label=\"search CarParts.com\">\n    <input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\"><input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">How To Keep the A\/C Blowing Cold Air<\/h2>\n\n\n\n<p>Now that you&rsquo;ve gotten your answer to the question &ldquo;why doesn&rsquo;t my ac blow cold air,&rdquo; it&rsquo;s a good time to also start asking how to prevent it from ever happening again. Consider some of these tips:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Keep Up With Maintenance<\/h3>\n\n\n\n<p>One of the best ways to prevent your A\/C system from breaking down is to always keep up with your routine maintenance. Most mechanics recommend having your A\/C system inspected every year before summer starts, so you can make sure everything&rsquo;s in top shape before the heat gets too unbearable.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Repair Any Broken Components Immediately<\/h3>\n\n\n\n<p>It&rsquo;s always best to let professionals handle any issues in your A\/C system, but there are some easy fixes you can do on your own. For example, changing a clogged <a href=\"https:\/\/www.carparts.com\/air-filter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"air filter\">air filter<\/a> is a pretty simple task as long as you follow the instructions in your owner&rsquo;s manual.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Run Your A\/C Every Week<\/h3>\n\n\n\n<p>Some people might think not using their A\/C can help prolong its lifespan, but that isn&rsquo;t always the case. In some cases, it might do your A\/C some good if you let it run for at least 10 minutes every week, especially during colder months when you don&rsquo;t use it as often. Doing so helps circulate refrigerant in your A\/C system, lubricating your compressor and other parts.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Is your air conditioning (A\/C) system refusing to blow cold air? It&rsquo;s no doubt a frustrating situation, especially during the&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/why-wont-my-a-c-blow-cold-air-common-causes-and-prevention-tips\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":88060,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[3754,52],"tags":[1175,1176,1276,1669],"ppma_author":[2607,3742],"class_list":{"0":"post-88002","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-air-conditioning-and-heating","8":"category-diy","9":"tag-a-c-compressor-2","10":"tag-a-c-condenser-2","11":"tag-air-filter-2","12":"tag-coolant-antifreeze-2","13":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why Won\u2019t My A\/C Blow Cold Air? Common Causes and Prevention Tips - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Is your A\/C blowing hot air even though it\u2019s supposed to blow cold air? Learn the common reasons why your A\/C won\u2019t blow cold air here.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.carparts.com\/blog\/why-wont-my-a-c-blow-cold-air-common-causes-and-prevention-tips\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Won\u2019t My A\/C Blow Cold Air? Common Causes and Prevention Tips - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Is your A\/C blowing hot air even though it\u2019s supposed to blow cold air? 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