{"id":15730,"date":"2024-09-18T06:20:06","date_gmt":"2024-09-18T11:20:06","guid":{"rendered":"https:\/\/www.galmicheandsons.com\/hvac-blog\/?p=15730"},"modified":"2024-09-26T13:05:08","modified_gmt":"2024-09-26T18:05:08","slug":"reasons-your-ac-freezes-up","status":"publish","type":"post","link":"https:\/\/www.galmicheandsons.com\/hvac-blog\/reasons-your-ac-freezes-up\/","title":{"rendered":"Reasons Your AC Freezes Up &amp; What To Do About It"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/reasons-your-ac-freezes-up\/#Why_an_AC_Freezes_Up\" >Why an AC Freezes Up<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/reasons-your-ac-freezes-up\/#Weak_or_Blocked_Airflow\" >Weak or Blocked Airflow<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/reasons-your-ac-freezes-up\/#Mechanical_Problems_Causing_Your_AC_to_Freeze_Up\" >Mechanical Problems Causing Your AC to Freeze Up<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/reasons-your-ac-freezes-up\/#Refrigerant_Leaks\" >Refrigerant Leaks<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/reasons-your-ac-freezes-up\/#Cool_Summer_Nights_in_St_Louis\" >Cool Summer Nights in St. Louis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/reasons-your-ac-freezes-up\/#Thermostat_is_Set_Too_Low\" >Thermostat is Set Too Low<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/reasons-your-ac-freezes-up\/#Contact_Galmiche_Sons_for_AC_Repair_in_St_Louis\" >Contact Galmiche &amp; Sons for AC Repair in St. Louis<\/a><\/li><\/ul><\/nav><\/div>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/reasons-your-ac-freezes-up-1-300x200.jpg\" alt=\"Reasons Your AC Freezes Up &amp; What To Do About It\" width=\"300\" height=\"200\" class=\"alignleft size-medium wp-image-15832\" srcset=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/reasons-your-ac-freezes-up-1-300x200.jpg 300w, https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/reasons-your-ac-freezes-up-1.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>A freezing AC in summer is a rather common occurrence. If you don&#8217;t see ice, you might still have a freezing problem if the air feels warm at the supply registers. Why does your AC freeze up and how can you fix the problem? When your AC freezes up, it can be due to a couple of issues, which our <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/ask-an-hvac-technician\/\">HVAC technician<\/a> can address promptly.<\/p>\n<p>The problems responsible for a frozen AC can be fixed with tune-ups and regular maintenance. With over 70 years performing HVAC maintenance in the Greater St. Louis area, Galmiche &amp; Sons can service all popular makes and models of air conditioners. To schedule <a href=\"https:\/\/www.galmicheandsons.com\/service-request.php\">HVAC maintenance<\/a> service or have your freezing AC checked out, call us at <span class=\"mobile_tel\"><span class=\"mobile_tel\">314-993-1110<\/span><\/span> or fill out our online form.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_an_AC_Freezes_Up\"><\/span>Why an AC Freezes Up<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The common causes for an AC freezing up are as follows:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Weak_or_Blocked_Airflow\"><\/span>Weak or Blocked Airflow<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When warm air does not move across the evaporator coils, the coils&#8217; temperature will plummet and cause them to freeze. Poor airflow is most often caused by a dirty air filter or evaporator coils.<\/p>\n<p>The fix is simple. Turn the A\/C off and allow the unit to thaw. Turning the fan to the &quot;on&quot; position will allow it to continue running and enable the unit to thaw faster.<\/p>\n<p>Once thawing is complete, replace the air filter. Ensuring a regular filter cleaning or changing schedule can keep various <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/tips-to-fix-common-ac-problems\/\">AC problems<\/a> away and support <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/strategies-to-improve-ac-performance\/\">AC performance<\/a>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Mechanical_Problems_Causing_Your_AC_to_Freeze_Up\"><\/span>Mechanical Problems Causing Your AC to Freeze Up<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>An air conditioner has many moving parts. If any of these parts fail, then the resulting low pressure can cause low temperature (pressure and temperature are directly proportional). When the temperature becomes low enough, the moisture turns to ice and your AC freezes up.<\/p>\n<p>Addressing mechanical issues with an AC is best left to HVAC technicians. Galmiche and Sons carries out all types of AC repair, including resolving AC freezes.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/reasons-your-ac-freezes-up-2-300x200.jpg\" alt=\"Why an AC Freezes Up\" width=\"300\" height=\"200\" class=\"alignright size-medium wp-image-15831\" srcset=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/reasons-your-ac-freezes-up-2-300x200.jpg 300w, https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/reasons-your-ac-freezes-up-2.jpg 600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Refrigerant_Leaks\"><\/span>Refrigerant Leaks<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A refrigerant leak is another reason an AC freezes up. Handling refrigerant requires certified expertise. Call in an HVAC technician for <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/ac-refrigerant-leak-repair\/\">AC refrigerant leak repair<\/a>, who will thaw the ice, find the leak, recharge the refrigerant, and restore your AC&#8217;s cold air cycle to normalcy.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cool_Summer_Nights_in_St_Louis\"><\/span>Cool Summer Nights in St. Louis<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>If nighttime temperatures fall, then your AC&#8217;s pressure can drop and cause ice formation. When the temperature drops below 60\u00b0F outside and your AC is still running, the problem becomes more likely.<\/p>\n<p>Shut down your AC and let the ice thaw. When the outside temperature falls, open the windows and allow your home to cool naturally. If your AC freezes up despite this, have a HVAC technician diagnose the problem.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Thermostat_is_Set_Too_Low\"><\/span>Thermostat is Set Too Low<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>It could be that your thermostat is set a bit too low and the resulting drop in indoor temperature causes the refrigerant pressure to drop, leading to the formation of ice. Setting the thermostat above 67\u00b0F can help prevent AC freeze. When the evaporator coils ice up, they can affect your AC&#8217;s efficiency, which is another reason to keep your thermostat at a moderate level.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Contact_Galmiche_Sons_for_AC_Repair_in_St_Louis\"><\/span>Contact Galmiche &amp; Sons for AC Repair in St. Louis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>When an AC freezes up, it can lead to reduced cooling performance and efficiency, strain the compressor, and as the ice melts, cause <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/air-conditioner-leaking-water\/\">AC water leaks<\/a> inside your home. AC maintenance from Galmiche &amp; Sons can save you money on expensive AC repairs that become necessary due to not maintaining the cooling unit properly. To schedule AC maintenance service or get AC repair quickly, call us at <span class=\"mobile_tel\"><span class=\"mobile_tel\">314-993-1110<\/span><\/span> or fill out our online form.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A freezing AC in summer is a rather common occurrence. If you don&#8217;t see ice, you might still have a freezing problem if the air feels warm at the supply registers. Why does your AC freeze up and how can you fix the problem? When your AC freezes up, it can be due to a couple of issues, which our HVAC technician can address promptly. The problems responsible for a frozen AC can be fixed with tune-ups and regular maintenance. &hellip; <a href=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/reasons-your-ac-freezes-up\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Reasons Your AC Freezes Up &amp; What To Do About It<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":15832,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mbp_gutenberg_autopost":false,"footnotes":""},"categories":[4,15,8,13,5,22,32],"tags":[],"class_list":["post-15730","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-air-conditioner-maintenance","category-air-conditioner-repair","category-air-conditioner-replacement","category-air-conditioner-tips","category-air-conditioners","category-diy-hvac-repair","category-diy-hvac-tips"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Reasons Your AC Freezes Up &amp; What To Do | St. Louis HVAC Tips<\/title>\n<meta name=\"description\" content=\"When your AC freezes up, it can be due to a couple of issues. Learn common problems and schedule services with our HVAC technicians.\" \/>\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.galmicheandsons.com\/hvac-blog\/reasons-your-ac-freezes-up\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Reasons Your AC Freezes Up &amp; What To Do | St. Louis HVAC Tips\" \/>\n<meta property=\"og:description\" content=\"When your AC freezes up, it can be due to a couple of issues. Learn common problems and schedule services with our HVAC technicians.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/reasons-your-ac-freezes-up\/\" \/>\n<meta property=\"og:site_name\" content=\"St. Louis HVAC Tips - Galmiche &amp; Sons\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/GalmicheAndSons\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-09-18T11:20:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-09-26T18:05:08+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.galmicheandsons.com\/hvac-blog\/wp-content\/uploads\/reasons-your-ac-freezes-up-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"600\" \/>\n\t<meta property=\"og:image:height\" content=\"400\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Steve Dulle\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@GalmicheAndSon\" \/>\n<meta name=\"twitter:site\" content=\"@GalmicheAndSon\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Steve Dulle\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/reasons-your-ac-freezes-up\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/reasons-your-ac-freezes-up\\\/\"},\"author\":{\"name\":\"Steve Dulle\",\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/#\\\/schema\\\/person\\\/b90d5d47a6f393d93d6459a9aa8b2fe1\"},\"headline\":\"Reasons Your AC Freezes Up &amp; What To Do About It\",\"datePublished\":\"2024-09-18T11:20:06+00:00\",\"dateModified\":\"2024-09-26T18:05:08+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/reasons-your-ac-freezes-up\\\/\"},\"wordCount\":616,\"publisher\":{\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/reasons-your-ac-freezes-up\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/wp-content\\\/uploads\\\/reasons-your-ac-freezes-up-1.jpg\",\"articleSection\":[\"Air Conditioner Maintenance\",\"Air Conditioner Repair\",\"Air Conditioner Replacement\",\"Air Conditioner Tips\",\"Air Conditioners\",\"DIY HVAC Repair\",\"DIY HVAC Tips\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/reasons-your-ac-freezes-up\\\/\",\"url\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/reasons-your-ac-freezes-up\\\/\",\"name\":\"Reasons Your AC Freezes Up & What To Do | St. Louis HVAC Tips\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/reasons-your-ac-freezes-up\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/reasons-your-ac-freezes-up\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.galmicheandsons.com\\\/hvac-blog\\\/wp-content\\\/uploads\\\/reasons-your-ac-freezes-up-1.jpg\",\"datePublished\":\"2024-09-18T11:20:06+00:00\",\"dateModified\":\"2024-09-26T18:05:08+00:00\",\"description\":\"When your AC freezes up, it can be due to a couple of issues. 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