{"id":98332,"date":"2023-12-14T20:43:51","date_gmt":"2023-12-15T04:43:51","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=98332"},"modified":"2024-05-14T18:55:55","modified_gmt":"2024-05-15T01:55:55","slug":"why-is-my-cars-ac-pipe-frozen","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/why-is-my-cars-ac-pipe-frozen\/","title":{"rendered":"Why Is My Car\u2019s AC Hose Frozen on the Outside?"},"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_2d4dd6-ab > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_2d4dd6-ab > .kt-inside-inner-col,.kadence-column_2d4dd6-ab > .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_2d4dd6-ab > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_2d4dd6-ab > .kt-inside-inner-col{flex-direction:column;}.kadence-column_2d4dd6-ab > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_2d4dd6-ab > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_2d4dd6-ab{position:relative;}@media all and (max-width: 1024px){.kadence-column_2d4dd6-ab > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_2d4dd6-ab > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_2d4dd6-ab qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-83afbb  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-e2e7f5\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_cf3068-5d, .wp-block-kadence-advancedheading.kt-adv-heading_cf3068-5d[data-kb-block=\"kb-adv-heading_cf3068-5d\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_cf3068-5d mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_cf3068-5d[data-kb-block=\"kb-adv-heading_cf3068-5d\"] 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_cf3068-5d img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_cf3068-5d[data-kb-block=\"kb-adv-heading_cf3068-5d\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_cf3068-5d summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_cf3068-5d\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Some of the common reasons why your A\/C hose is frozen include low-pressure switch problems and a clogged A\/C condenser.<\/li><li>A clogged A\/C condenser and\/or a dirty cabin air filter will obstruct airflow, and has the potential to cause your A\/C pipes to freeze up. Note that this doesn&rsquo;t mean the suction line will always freeze up under the conditions described, but sometimes it will.<\/li><li>If your A\/C isn&rsquo;t working properly and you notice frost on the suction line, it&rsquo;s a good idea to have a reputable shop check the A\/C.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<h2 class=\"wp-block-heading\">Causes of Frozen A\/C Pipes<\/h2>\n\n\n\n<p>First, a note about <strong>outside moisture<\/strong>: since ambient temperatures directly affect refrigerant pressure (and by extension, refrigerant temperature), the suction line will typically be sweaty (like a glass of iced tea) in the summer and actually may form frost in the winter if you&rsquo;re using the defrost, which energizes the A\/C compressor so the evaporator can dry the air before it passes through the heater core.<\/p>\n\n\n\n<p>This is particularly true when humidity levels are high. Frost on the suction line may not even be a problem if your A\/C is otherwise working normally. But below, let&rsquo;s look at times when this might be an issue.<\/p>\n\n\n<style>.kadence-column_74ccb3-a3 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_74ccb3-a3 > .kt-inside-inner-col,.kadence-column_74ccb3-a3 > .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_74ccb3-a3 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_74ccb3-a3 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_74ccb3-a3 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_74ccb3-a3 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_74ccb3-a3{position:relative;}@media all and (max-width: 1024px){.kadence-column_74ccb3-a3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_74ccb3-a3 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_74ccb3-a3 kb-section-dir-vertical kb-section-sm-dir-vertical pro-tip-widget\"><div class=\"kt-inside-inner-col\"><style>#kt-layout-id_631a6d-0b > .kt-row-column-wrap{align-content:start;}:where(#kt-layout-id_631a6d-0b > .kt-row-column-wrap) > .wp-block-kadence-column{justify-content:start;}#kt-layout-id_631a6d-0b > .kt-row-column-wrap{column-gap:var(--global-kb-gap-none, 0rem );row-gap:var(--global-kb-gap-md, 2rem);padding-top:var( --global-kb-row-default-top, 25px );padding-bottom:var( --global-kb-row-default-bottom, 25px );padding-top:20px;padding-bottom:20px;padding-left:16px;padding-right:32px;grid-template-columns:minmax(0, calc(10% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)))minmax(0, calc(90% - ((var(--global-kb-gap-none, 0rem ) * 1 )\/2)));}#kt-layout-id_631a6d-0b > .kt-row-layout-overlay{opacity:0.00;}#kt-layout-id_631a6d-0b .kt-row-layout-bottom-sep{height:100px;}#kt-layout-id_631a6d-0b .kt-row-layout-bottom-sep svg{width:100%;}#kt-layout-id_631a6d-0b .kt-row-layout-bottom-sep svg{fill:#ffffff!important;}#kt-layout-id_631a6d-0b .kt-row-layout-top-sep{height:100px;}#kt-layout-id_631a6d-0b .kt-row-layout-top-sep svg{width:100%;}#kt-layout-id_631a6d-0b .kt-row-layout-top-sep svg{fill:#ffffff!important;}@media all and (max-width: 1024px){#kt-layout-id_631a6d-0b > .kt-row-column-wrap{grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}}@media all and (max-width: 1024px){#kt-layout-id_631a6d-0b .kt-row-layout-bottom-sep{height:px;}}@media all and (max-width: 1024px){#kt-layout-id_631a6d-0b .kt-row-layout-bottom-sep svg{width:%;}}@media all and (max-width: 767px){#kt-layout-id_631a6d-0b > .kt-row-column-wrap{padding-top:28px;padding-bottom:25px;padding-left:16px;padding-right:16px;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);}#kt-layout-id_631a6d-0b .kt-row-layout-bottom-sep{height:px;}#kt-layout-id_631a6d-0b .kt-row-layout-bottom-sep svg{width:%;}}<\/style>\n<div class=\"wp-block-kadence-rowlayout alignnone pro-tip-wrap\"><div id=\"kt-layout-id_631a6d-0b\" class=\"kt-row-layout-inner kt-layout-id_631a6d-0b\"><div class=\"kt-row-column-wrap kt-has-2-columns kt-gutter-none kt-v-gutter-default kt-row-valign-top kt-row-layout-right-golden kt-tab-layout-right-golden kt-m-colapse-left-to-right kt-mobile-layout-right-golden  kt-custom-first-width-10  kt-custom-second-width-90\"><style>.kadence-column_f3292c-10 > .kt-inside-inner-col{display:flex;}.kadence-column_f3292c-10 > .kt-inside-inner-col{min-height:45px;border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_f3292c-10 > .kt-inside-inner-col,.kadence-column_f3292c-10 > .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_f3292c-10 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}.kadence-column_f3292c-10 > .kt-inside-inner-col > *, .kadence-column_f3292c-10 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_f3292c-10 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_f3292c-10 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}.kadence-column_f3292c-10 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_f3292c-10{position:relative;}@media all and (max-width: 1024px){.kadence-column_f3292c-10 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;align-items:center;}}@media all and (min-width: 768px) and (max-width: 1024px){.kadence-column_f3292c-10 > .kt-inside-inner-col > *, .kadence-column_f3292c-10 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_f3292c-10 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_f3292c-10 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}@media all and (max-width: 767px){.kadence-column_f3292c-10 > .kt-inside-inner-col{flex-direction:row;flex-wrap:wrap;justify-content:flex-start;}.kadence-column_f3292c-10 > .kt-inside-inner-col > *, .kadence-column_f3292c-10 > .kt-inside-inner-col > figure.wp-block-image, .kadence-column_f3292c-10 > .kt-inside-inner-col > figure.wp-block-kadence-image{margin-top:0px;margin-bottom:0px;}.kadence-column_f3292c-10 > .kt-inside-inner-col > .kb-image-is-ratio-size{flex-grow:1;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_f3292c-10 kb-section-dir-horizontal kb-section-md-dir-horizontal pro-tip-item1\"><div class=\"kt-inside-inner-col\"><style>.kb-image_dfd61a-61.kb-image-is-ratio-size, .kb-image_dfd61a-61 .kb-image-is-ratio-size{max-width:45px;width:100%;}.wp-block-kadence-column > .kt-inside-inner-col > .kb-image_dfd61a-61.kb-image-is-ratio-size, .wp-block-kadence-column > .kt-inside-inner-col > .kb-image_dfd61a-61 .kb-image-is-ratio-size{align-self:unset;}.kb-image_dfd61a-61 figure{max-width:45px;}.kb-image_dfd61a-61 .image-is-svg, .kb-image_dfd61a-61 .image-is-svg img{width:100%;}.kb-image_dfd61a-61 .kb-image-has-overlay:after{opacity:0.3;}<\/style>\n<div class=\"wp-block-kadence-image kb-image_dfd61a-61\"><figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/f_auto,dpr_auto,q_auto,c_pad\/carparts\/blog\/widgets\/protip\/services-icon\" alt=\"\" class=\"kb-img\"><\/figure><\/div>\n<\/div><\/div>\n\n\n<style>.kadence-column_ecca4e-8c > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_ecca4e-8c > .kt-inside-inner-col,.kadence-column_ecca4e-8c > .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_ecca4e-8c > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_ecca4e-8c > .kt-inside-inner-col{flex-direction:column;}.kadence-column_ecca4e-8c > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_ecca4e-8c > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_ecca4e-8c{position:relative;}@media all and (max-width: 1024px){.kadence-column_ecca4e-8c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_ecca4e-8c > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-2 kadence-column_ecca4e-8c pro-tip-item2\"><div class=\"kt-inside-inner-col\">\n<div class=\"protip-desc\">\n\t<div class=\"help-tip\">\n\t\t<p><strong>Pro Tips<\/strong> are nuggets of information direct from ASE-certified automobile technicians working with CarParts.com, which may include unique, personal insights based on their years of experience working in the automotive industry. These can help you make more informed decisions about your car.<\/p>\n\t<\/div>\n    <div class=\"help-caption\">\n        <p>\n            <strong>Pro Tip:<\/strong>\nThe suction line is the larger of the two refrigerant lines connected to the compressor and carries refrigerant from the evaporator to the compressor. The suction line is always very cold all the way to the compressor when the A\/C is engaged and working properly. The other line connected to the compressor travels to the condenser inlet and is carrying high pressure gas, so that line will be hot to the touch rather than cold like the suction line.\n        <\/p>\n    <\/div>\n<\/div>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-data443-irp-shortcode irp-shortcode\"><div style=\"clear:both; margin-top:0em; margin-bottom:1em;\"><a href=\"https:\/\/www.carparts.com\/blog\/where-is-the-a-c-low-pressure-switch-located\/\" target=\"_self\" rel=\"dofollow\" class=\"u6a4335489de31dbeaaa7ab2d568b4ed1\"><style> .u6a4335489de31dbeaaa7ab2d568b4ed1 { padding:0px; margin: 0; padding-top:1em!important; padding-bottom:1em!important; width:100%; display: block; font-weight:bold; background-color:#eaeaea; border:0!important; border-left:4px solid #34495E!important; text-decoration:none; } .u6a4335489de31dbeaaa7ab2d568b4ed1:active, .u6a4335489de31dbeaaa7ab2d568b4ed1:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; text-decoration:none; } .u6a4335489de31dbeaaa7ab2d568b4ed1 { transition: background-color 250ms; webkit-transition: background-color 250ms; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; } .u6a4335489de31dbeaaa7ab2d568b4ed1 .ctaText { font-weight:bold; color:#464646; text-decoration:none; font-size: 16px; } .u6a4335489de31dbeaaa7ab2d568b4ed1 .postTitle { color:#000000; text-decoration: underline!important; font-size: 16px; } .u6a4335489de31dbeaaa7ab2d568b4ed1:hover .postTitle { text-decoration: underline!important; } <\/style><div style=\"padding-left:1em; padding-right:1em;\"><span class=\"ctaText\">See also<\/span>&nbsp; <span class=\"postTitle\">Where Is the A\/C Low-Pressure Switch Located?<\/span><\/div><\/a><\/div><\/div>\n\n\n\n<p>Here are the most common reasons why your car&rsquo;s A\/C lines are frozen:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Low-Pressure Switch Issues<\/h3>\n\n\n\n<p>Your car&rsquo;s <a href=\"https:\/\/www.carparts.com\/blog\/where-is-the-a-c-low-pressure-switch-located\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"low-pressure switch\">low-pressure switch<\/a> monitors the low-pressure side of your <a href=\"https:\/\/www.carparts.com\/blog\/automotive-air-conditioning-systems\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"A\/C system\">A\/C system<\/a>. Its main function is to cycle the compressor to prevent evaporator icing. Once there&rsquo;s an issue with this switch, your compressor&rsquo;s operation will be interrupted. This can cause your A\/C lines to ice up.<\/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<h3 class=\"wp-block-heading\">Clogged A\/C Condenser<\/h3>\n\n\n\n<p>Once your <a href=\"https:\/\/www.carparts.com\/a-c-condenser\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"A\/C condenser\">A\/C condenser<\/a> is clogged, the <a href=\"https:\/\/www.carparts.com\/a-c-evaporator\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"A\/C evaporator\">A\/C evaporator<\/a> will <a href=\"https:\/\/www.carparts.com\/blog\/where-is-the-a-c-evaporator-located\/#:~:text=The%20A%2FC%20evaporator%20is,it\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"struggle to transfer heat\">struggle to transfer heat<\/a>, causing the condenser itself and the lines attached to it to become extremely cold.<\/p>\n\n\n\n<p>Leaves and other road debris can clog your A\/C condenser and obstruct airflow within the system. That&rsquo;s why it&rsquo;s important to have your A\/C condenser cleaned from time to time. If you notice that your car&rsquo;s A\/C isn&rsquo;t operating at peak performance, it can be time to have your A\/C inspected and cleaned by a professional.<\/p>\n\n\n\n<div class=\"wp-block-data443-irp-shortcode irp-shortcode\"><div style=\"clear:both; margin-top:0em; margin-bottom:1em;\"><a href=\"https:\/\/www.carparts.com\/blog\/where-is-the-a-c-drain-line-located\/\" target=\"_self\" rel=\"dofollow\" class=\"u0096e220c5f654599a335ad5e76391c3\"><style> .u0096e220c5f654599a335ad5e76391c3 { padding:0px; margin: 0; padding-top:1em!important; padding-bottom:1em!important; width:100%; display: block; font-weight:bold; background-color:#eaeaea; border:0!important; border-left:4px solid #34495E!important; text-decoration:none; } .u0096e220c5f654599a335ad5e76391c3:active, .u0096e220c5f654599a335ad5e76391c3:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; text-decoration:none; } .u0096e220c5f654599a335ad5e76391c3 { transition: background-color 250ms; webkit-transition: background-color 250ms; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; } .u0096e220c5f654599a335ad5e76391c3 .ctaText { font-weight:bold; color:#464646; text-decoration:none; font-size: 16px; } .u0096e220c5f654599a335ad5e76391c3 .postTitle { color:#000000; text-decoration: underline!important; font-size: 16px; } .u0096e220c5f654599a335ad5e76391c3:hover .postTitle { text-decoration: underline!important; } <\/style><div style=\"padding-left:1em; padding-right:1em;\"><span class=\"ctaText\">See also<\/span>&nbsp; <span class=\"postTitle\">Where Is the A\/C Evaporator Drain Located?<\/span><\/div><\/a><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Dirty Cabin Air Filter<\/h3>\n\n\n\n<p>A <a href=\"https:\/\/www.carparts.com\/blog\/dirty-cabin-air-filter-symptoms-and-faq\/#:~:text=You%20should%20replace%20your%20cabin,recommended%20interval%20for%20replacing%20it.\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"dirty cabin air filter\">dirty cabin air filter<\/a> can also obstruct airflow. Once this <a href=\"https:\/\/www.carparts.com\/cabin-air-filter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"filter\">filter<\/a> is clogged or filled with dirt, airflow across the evaporator can be blocked, and your A\/C lines can also get iced up.<\/p>\n\n\n\n<p>It&rsquo;s recommended to replace your ride&rsquo;s cabin air filter (if your vehicle has one) every year or every 12,000 miles. If you&rsquo;re not sure when to change it, you can check your owner&rsquo;s manual.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What to Do With a Frozen A\/C Pipe<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/12\/addressing-frozen-car-ac-pipe-1024x682.jpg\" alt=\"addressing frozen car ac pipe\" class=\"wp-image-98336\" width=\"1024\" height=\"682\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/12\/addressing-frozen-car-ac-pipe-1024x682.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/12\/addressing-frozen-car-ac-pipe-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/12\/addressing-frozen-car-ac-pipe-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/12\/addressing-frozen-car-ac-pipe-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/12\/addressing-frozen-car-ac-pipe-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/12\/addressing-frozen-car-ac-pipe-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/12\/addressing-frozen-car-ac-pipe-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/12\/addressing-frozen-car-ac-pipe.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>If one or several of your A\/C pipes are frozen, you have to figure out what&rsquo;s causing the issue.<\/figcaption><\/figure>\n\n\n\n<p>If one or several of your <a href=\"https:\/\/www.carparts.com\/a-c-pipe\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"A\/C pipes\">A\/C pipes<\/a> are frozen, and your A\/C isn&rsquo;t working properly, you have to figure out what&rsquo;s causing the issue. And if you&rsquo;re not a seasoned DIYer, it&rsquo;s best to take your ride to an auto repair shop. But again, if your A\/C is working the way it should, don&rsquo;t worry about frost on the A\/C lines.<\/p>\n\n\n\n<p>A mechanic will usually inspect your A\/C system for refrigerant leaks. Once your mechanic finds the root cause of the issue, you may need to replace certain A\/C components like the O-rings, evaporators, and pipes. Note, however that low refrigerant won&rsquo;t cause the A\/C pipes to freeze. They&rsquo;ll actually be warmer than they should be, not colder.<\/p>\n\n\n\n<p>If you&rsquo;ve recently been involved in a collision, and your A\/C system has been exposed for more than a few hours, the receiver-dryer must also be replaced. This component can become saturated if exposed to the air for too long.<\/p>\n\n\n\n<div class=\"wp-block-data443-irp-shortcode irp-shortcode\"><div style=\"clear:both; margin-top:0em; margin-bottom:1em;\"><a href=\"https:\/\/www.carparts.com\/blog\/where-is-the-a-c-low-pressure-switch-located\/\" target=\"_self\" rel=\"dofollow\" class=\"u2f420d2217d15225fdeab98b62e5628d\"><style> .u2f420d2217d15225fdeab98b62e5628d { padding:0px; margin: 0; padding-top:1em!important; padding-bottom:1em!important; width:100%; display: block; font-weight:bold; background-color:#eaeaea; border:0!important; border-left:4px solid #34495E!important; text-decoration:none; } .u2f420d2217d15225fdeab98b62e5628d:active, .u2f420d2217d15225fdeab98b62e5628d:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; text-decoration:none; } .u2f420d2217d15225fdeab98b62e5628d { transition: background-color 250ms; webkit-transition: background-color 250ms; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; } .u2f420d2217d15225fdeab98b62e5628d .ctaText { font-weight:bold; color:#464646; text-decoration:none; font-size: 16px; } .u2f420d2217d15225fdeab98b62e5628d .postTitle { color:#000000; text-decoration: underline!important; font-size: 16px; } .u2f420d2217d15225fdeab98b62e5628d:hover .postTitle { text-decoration: underline!important; } <\/style><div style=\"padding-left:1em; padding-right:1em;\"><span class=\"ctaText\">See also<\/span>&nbsp; <span class=\"postTitle\">Where Is the A\/C Low-Pressure Switch Located?<\/span><\/div><\/a><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Can Frozen A\/C Pipes Damage Your A\/C System?<\/h2>\n\n\n\n<p>The short answer is no. A\/C systems have pressure switches to interrupt compressor operation and prevent system damage when pressures are too low or too high in the system.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Signs that Your Car&rsquo;s A\/C Needs Servicing<\/h2>\n\n\n\n<p>Even if there&rsquo;s a recommended maintenance interval for your car&rsquo;s A\/C system, you don&rsquo;t have to wait that long if you notice something that might be wrong with your vehicle&rsquo;s air conditioning.<\/p>\n\n\n\n<p>Here are some of the most common signs it&rsquo;s time to take your ride to an auto repair shop:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Strange Odor<\/h3>\n\n\n\n<p>If you notice a <a href=\"https:\/\/www.carparts.com\/blog\/4-reasons-why-your-car-a-c-smells-bad\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"strange smell\">strange smell<\/a> coming from your car&rsquo;s A\/C vents, it&rsquo;s a tell-tale sign there&rsquo;s something wrong with your A\/C system. Mold, mildew, and leaks within the system may cause it to produce a strange odor.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Fluctuating Temperature<\/h3>\n\n\n\n<p>Your car&rsquo;s A\/C should be able to maintain a comfortable temperature inside your cabin. Faulty A\/C components can cause temperature fluctuations. In some cases, your A\/C may not be able to blow cool air into your cabin.<\/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>Causes of Frozen A\/C Pipes First, a note about outside moisture: since ambient temperatures directly affect refrigerant pressure (and by&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/why-is-my-cars-ac-pipe-frozen\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":98337,"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":[3909],"ppma_author":[2607,2985],"class_list":{"0":"post-98332","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-pipe","10":"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 Is My Car\u2019s AC Hose Frozen on the Outside? - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out how moisture build-up, low refrigerant levels, and clogged A\/C parts can cause your A\/C pipes to freeze up.\" \/>\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-is-my-cars-ac-pipe-frozen\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Is My Car\u2019s AC Hose Frozen on the Outside? - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out how moisture build-up, low refrigerant levels, and clogged A\/C parts can cause your A\/C pipes to freeze up.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/why-is-my-cars-ac-pipe-frozen\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2023-12-15T04:43:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-15T01:55:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/12\/checking-car-ac-pipe.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1333\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/why-is-my-cars-ac-pipe-frozen\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/why-is-my-cars-ac-pipe-frozen\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. 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