{"id":13802,"date":"2025-01-29T11:28:34","date_gmt":"2025-01-29T19:28:34","guid":{"rendered":"https:\/\/www.appliancepartspros.com\/b\/?p=13802"},"modified":"2025-01-29T11:28:43","modified_gmt":"2025-01-29T19:28:43","slug":"how-to-replace-a-pressure-switch-in-your-gas-furnace","status":"publish","type":"post","link":"https:\/\/www.appliancepartspros.com\/c\/how-to-replace-a-pressure-switch-in-your-gas-furnace\/","title":{"rendered":"How to replace a pressure switch in your gas furnace"},"content":{"rendered":"<div  class='avia-image-container  av-styling-    avia-builder-el-0  el_before_av_textblock  avia-builder-el-first  avia-align-center '  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\"  ><div class='avia-image-container-inner'><div class='avia-image-overlay-wrap'><img fetchpriority=\"high\" fetchpriority=\"high\" decoding=\"async\" class='wp-image-13811 avia-img-lazy-loading-not-13811 avia_image' src=\"https:\/\/www.appliancepartspros.com\/c\/wp-content\/uploads\/2025\/01\/Updated-blog-rectangle-21.jpg\" alt='' title='' height=\"500\" width=\"1600\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.appliancepartspros.com\/c\/wp-content\/uploads\/2025\/01\/Updated-blog-rectangle-21.jpg 1600w, https:\/\/www.appliancepartspros.com\/c\/wp-content\/uploads\/2025\/01\/Updated-blog-rectangle-21-300x94.jpg 300w, https:\/\/www.appliancepartspros.com\/c\/wp-content\/uploads\/2025\/01\/Updated-blog-rectangle-21-1030x322.jpg 1030w, https:\/\/www.appliancepartspros.com\/c\/wp-content\/uploads\/2025\/01\/Updated-blog-rectangle-21-768x240.jpg 768w, https:\/\/www.appliancepartspros.com\/c\/wp-content\/uploads\/2025\/01\/Updated-blog-rectangle-21-1536x480.jpg 1536w, https:\/\/www.appliancepartspros.com\/c\/wp-content\/uploads\/2025\/01\/Updated-blog-rectangle-21-1500x469.jpg 1500w, https:\/\/www.appliancepartspros.com\/c\/wp-content\/uploads\/2025\/01\/Updated-blog-rectangle-21-705x220.jpg 705w\" sizes=\"(max-width: 1600px) 100vw, 1600px\" \/><\/div><\/div><\/div>\n<section class=\"av_textblock_section \"  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/BlogPosting\" itemprop=\"blogPost\" ><div class='avia_textblock  '   itemprop=\"text\" ><p><span style=\"font-weight: 400;\">When the cold weather hits, your gas furnace becomes a lifesaver, keeping your home cozy. But if it starts to act up, it can be frustrating. One common issue is a faulty furnace pressure switch. The good news is, replacing this switch yourself isn&#8217;t as difficult as it sounds. Let\u2019s walk through the process of swapping out that faulty pressure switch and getting your furnace back in action.<\/span><\/p>\n<p><b><i>Heads up:<\/i><\/b><i><span style=\"font-weight: 400;\"> The tips we&#8217;re sharing might not match your furnace&#8217;s exact make or model. We do our best to dish out handy advice for all sorts of DIY fixes, but different models can have their own quirks\u2014whether it&#8217;s troubleshooting steps, error codes, or replacement parts. For spot-on guidance, it&#8217;s a good idea to check your furnace&#8217;s manual or just <\/span><\/i><a href=\"https:\/\/www.appliancepartspros.com\/repair-help\/\"><i><span style=\"font-weight: 400;\">reach out to us<\/span><\/i><\/a><i><span style=\"font-weight: 400;\"> if you&#8217;ve got questions.<\/span><\/i><\/p>\n\n<h2><strong>What is the pressure switch and why does it matter?<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">The pressure switch is a safety device that ensures your furnace\u2019s venting system is working correctly. It monitors the air pressure in the system and prevents the furnace from running if there\u2019s a blockage in the vent or an issue with the inducer motor. If it detects a problem, it shuts the furnace down to protect your home from dangerous gases, like carbon monoxide.<\/span><\/p>\n<p><b>Read more: <\/b><a href=\"https:\/\/www.appliancepartspros.com\/b\/space-heater-safety-and-you\/\"><b>12 things you should know about portable space heaters<\/b><\/a><\/p>\n<h2><strong>Safety precautions\u00a0\u00a0\u00a0<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Safety should always be a priority when working on any appliance. Here are a few practical tips to help you stay safe:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Turn off the power to the appliance by unplugging it or switching off the circuit breaker before starting any maintenance or repairs. This protects you from the risk of electric shock.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Wear insulated gloves to shield your hands from sharp edges, pinching hazards, or debris.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Work at a steady pace and take your time to avoid accidents or injuries.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Make sure your workspace is well-lit so you can clearly see and access the parts you\u2019re working on.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Keep the area clear of clutter, and ensure children and pets stay out of the workspace.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Never handle internal parts with wet hands. Check that both your hands and the work area are completely dry.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Refer to your appliance\u2019s user manual for any specific instructions or safety guidelines related to the part or repair.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Handle parts gently to avoid damage to the appliance or potential injuries from applying too much force.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use safety glasses when dealing with chemicals, dust, or large debris to protect your eyes from harm.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If the appliance was recently used, give it enough time to cool down before working on any heated components.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take photos or notes of wiring connections and terminals before disconnecting anything to make reassembly easier.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Avoid touching exposed wires or terminals. If you must handle wires, use non-conductive tools or wear insulated gloves to minimize the risk of electrical shock.<\/span><\/li>\n<\/ul>\n<h2><strong>What you&#8217;ll need<\/strong><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A screwdriver (Phillips or flat-head, depending on your furnace)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A new pressure switch (make sure it\u2019s compatible with your furnace)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A digital camera or your phone (optional, for taking reference pictures)<\/span><\/li>\n<\/ul>\n<p><b>Read more: <\/b><a href=\"https:\/\/www.appliancepartspros.com\/b\/your-guide-to-choosing-a-space-heater\/\"><b>Your guide to choosing a space heater<\/b><\/a><\/p>\n<h2><strong>Get the right pressure switch<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Make sure you grab a pressure switch that&#8217;s a perfect match for your furnace. Using the wrong part can cause all sorts of issues, even safety hazards. You can find the right switch by checking your furnace&#8217;s model number. If you&#8217;re not sure where to find that info, take a peek at our guide on <\/span><a href=\"https:\/\/www.appliancepartspros.com\/b\/how-to-find-your-appliances-model-number\/\"><span style=\"font-weight: 400;\">how to find your appliance&#8217;s model number<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<h2><strong>Steps to replace the furnace pressure switch<\/strong><\/h2>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Locate the pressure switch. It is typically near the inducer motor, connected by a small rubber hose. If you\u2019re having trouble finding it, refer to your furnace manual for more details or locate the model number for more precise instructions.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Carefully remove the wires connected to the pressure switch. If you\u2019re unsure where each wire goes, snap a picture with your phone to reference later.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Gently pull the rubber hose off the switch. This hose connects to the inducer motor and is responsible for detecting pressure levels.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Remove the switch from its bracket. It is usually secured to the furnace with a small bracket.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If your new switch comes with its own bracket, you might need to replace it. Otherwise, you can reuse the existing bracket.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use your screwdriver to remove any screws or clips holding the switch in place and lift the switch off the bracket.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Position the new pressure switch onto the bracket. If you&#8217;re using a new bracket, set it up first, then attach the switch to it.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use the screws or clips you removed earlier to fasten the new switch in place. Make sure it\u2019s tight and secure.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Connect the rubber hose to the new switch, ensuring it&#8217;s snug and there are no kinks or twists that could obstruct airflow.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Refer to the picture you took earlier and reconnect the wires to their correct terminals on the new pressure switch.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Turn the furnace&#8217;s power switch back to &#8220;On.&#8221; If you turned off the breaker, be sure to switch it back on.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Set your thermostat to a higher temperature and wait for the furnace to kick on. Listen for the usual startup sounds, like the inducer motor running and the burners igniting.<\/span><\/li>\n<\/ol>\n<p><b>Read more: <\/b><a href=\"https:\/\/www.appliancepartspros.com\/b\/winter-safety-tips-for-space-heaters\/\"><b>12 simple space heater safety tips for this winter<\/b><\/a><\/p>\n<h2><strong>Stay warm and safe with AppliancePartsPros.com<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Thanks for reading! If you need replacement parts, grab your model number and head to <\/span><a href=\"https:\/\/www.appliancepartspros.com\/\"><b>AppliancePartsPros.com<\/b><\/a><span style=\"font-weight: 400;\">. We offer over two million parts and most orders arrive in two business days. If you need help finding the right part or placing an order, you can contact our team at 1 (877) 477-7278.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">While you\u2019re waiting for your new part to arrive, you can explore our <\/span><a href=\"https:\/\/www.appliancepartspros.com\/b\/\"><b>DIY blog<\/b><\/a><span style=\"font-weight: 400;\"> and watch thousands of video tutorials on <\/span><a href=\"https:\/\/www.youtube.com\/@appliancepartspros\/videos\"><b>our YouTube channel<\/b><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Be sure to follow us on <\/span><a href=\"http:\/\/facebook.com\/appliancepartspros\"><b>Facebook<\/b><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/twitter.com\/applpartspros\"><b>Twitter<\/b><\/a><span style=\"font-weight: 400;\"> and <\/span><a href=\"https:\/\/instagram.com\/appliancepartspros?igshid=OGQ5ZDc2ODk2ZA==\"><b>Instagram<\/b><\/a><span style=\"font-weight: 400;\"> to see our latest repair guides!<\/span><\/p>\n<\/div><\/section>\n<div  class='av-social-sharing-box  avia-builder-el-2  el_after_av_textblock  avia-builder-el-last  '><div class='av-share-box'><h5 class='av-share-link-description av-no-toc '>Share this entry<\/h5><ul class='av-share-box-list noLightbox'><li class='av-share-link av-social-link-facebook' ><a target=\"_blank\" aria-label=\"Share on Facebook\" href='https:\/\/www.facebook.com\/sharer.php?u=https:\/\/www.appliancepartspros.com\/c\/how-to-replace-a-pressure-switch-in-your-gas-furnace\/&#038;t=How%20to%20replace%20a%20pressure%20switch%20in%20your%20gas%20furnace' aria-hidden='false' data-av_icon='\ue8f3' data-av_iconfont='entypo-fontello' title='' data-avia-related-tooltip='Share on Facebook' rel=\"noopener\"><span class='avia_hidden_link_text'>Share on Facebook<\/span><\/a><\/li><li class='av-share-link av-social-link-twitter' ><a target=\"_blank\" aria-label=\"Share on Twitter\" 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