{"id":18673,"date":"2025-06-05T13:12:37","date_gmt":"2025-06-05T20:12:37","guid":{"rendered":"https:\/\/www.appliancepartspros.com\/b\/?p=18673"},"modified":"2026-07-14T12:27:57","modified_gmt":"2026-07-14T19:27:57","slug":"replacing-moisture-sensor-bar-wp3387223-on-a-whirlpool-dryer","status":"publish","type":"post","link":"https:\/\/www.appliancepartspros.com\/b\/replacing-moisture-sensor-bar-wp3387223-on-a-whirlpool-dryer\/","title":{"rendered":"Replacing Moisture Sensor Bar WP3387223 on a Whirlpool Dryer"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Fix poor drying performance by replacing the Whirlpool dryer moisture sensor bar WP3387223\u2014follow our clear, step-by-step instructions.<\/p>\n","protected":false},"author":3,"featured_media":18861,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_aviaLayoutBuilderCleanData":"[av_textblock size='' av-medium-font-size='' av-small-font-size='' av-mini-font-size='' font_color='' color='' id='' custom_class='' av_uid='av-mehjhls0' admin_preview_bg='']\r\n<span data-sheets-root=\"1\">Is your dryer persistently running even when clothes are already dry? You may have a malfunctioning moisture sensor bar causing the issue. Don't worry\u2014our step-by-step guide and accompanying video will show you just how easy it is to replace this critical part and restore your dryer's efficiency!<\/span>\r\n[\/av_textblock]\r\n\r\n[av_video src='https:\/\/youtu.be\/k-K2hUt8N2M' mobile_image='' attachment='' attachment_size='' format='16-9' width='16' height='9' conditional_play='' id='' custom_class='' av_uid='av-mehjhz4p']\r\n\r\n[av_textblock size='' av-medium-font-size='' av-small-font-size='' av-mini-font-size='' font_color='' color='' id='' custom_class='' av_uid='av-me8n7mj3' admin_preview_bg='']\r\n<b>Looking for the right part?<\/b><span style=\"font-weight: 400;\"> Enter your appliance model number below to find the exact match and get your appliance running like new again!<\/span>\r\n\r\n<span style=\"font-weight: 400;\">[search]<\/span>\r\n[\/av_textblock]\r\n\r\n[av_image src='https:\/\/www.appliancepartspros.com\/b\/wp-content\/uploads\/2025\/06\/20250605_1514_Colonial-Laundry-Room_simple_compose_01jx0r4q09fscv4fe48dq15z3j-1500x630.png' attachment='18861' attachment_size='featured_large' copyright='' caption='' styling='' align='center' font_size='' overlay_opacity='0.4' overlay_color='#000000' overlay_text_color='#ffffff' animation='no-animation' hover='' appearance='' link='' target='' title_attr='' alt_attr='' lazy_loading='disabled' id='' custom_class='' av_element_hidden_in_editor='0' av_uid='av-1ckbsb5' admin_preview_bg=''][\/av_image]\r\n\r\n[av_textblock size='' av-medium-font-size='' av-small-font-size='' av-mini-font-size='' font_color='' color='' id='' custom_class='' av_uid='av-mbff43st' admin_preview_bg='']\r\n<span style=\"font-weight: 400;\">If your Whirlpool dryer isn\u2019t shutting off when it should or keeps running even when your clothes are dry, the moisture sensor bar (part #WP3387223) might be the culprit. This little metal bar detects how damp your laundry is\u2014and if it\u2019s dirty, worn out, or faulty, it can throw off your dryer\u2019s timing. The good news? Replacing the moisture sensor bar is a super simple fix that only takes a few minutes. In this guide, we\u2019ll show you how to swap it out and help your dryer run more efficiently again. Let\u2019s dive in!<\/span>\r\n\r\n<b>Watch the repair here: <\/b><a href=\"https:\/\/youtu.be\/k-K2hUt8N2M\"><b>How to replace moisture sensor bar<\/b><\/a>\r\n\r\n<em><span style=\"font-weight: 400;\">The information in this article may not apply to your specific appliance model. We recommend consulting your manufacturer's documentation or<\/span><a href=\"https:\/\/www.appliancepartspros.com\/repair-help\/\"> <b>contact us<\/b><\/a><span style=\"font-weight: 400;\"> with any questions.<\/span><\/em>\r\n\r\n[lwptoc numeration=\"none\"]\r\n<p style=\"font-size:14.5px;margin:14px 0;font-family:system-ui,-apple-system,sans-serif\"><a href=\"#app-safety-notes\">Full safety notes below<\/a><\/p>\n\n<h2><span style=\"font-weight: 400;\">Tools and Materials Needed<\/span><\/h2>\r\n<span style=\"font-weight: 400;\">Gather the following materials before starting this repair:<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">New moisture sensor bar, <\/span><a href=\"https:\/\/www.appliancepartspros.com\/whirlpool-electrode-sensor-wp3387223-ap6008273.html\"><b>Whirlpool part #WP3387223<\/b><\/a><span style=\"font-weight: 400;\">- Take your <\/span><a href=\"https:\/\/www.appliancepartspros.com\/b\/how-to-find-your-appliances-model-number\/\"><b>model number<\/b><\/a><span style=\"font-weight: 400;\"> to <\/span><a href=\"https:\/\/www.appliancepartspros.com\/\"><b>AppliancePartsPros.com<\/b><\/a><span style=\"font-weight: 400;\"> to locate the correct part for your model.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Phillips head screwdriver<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Needle nose pliers<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Work gloves\u00a0<\/span><\/li>\r\n<\/ul>\r\n<h2><span style=\"font-weight: 400;\">Safety Precautions<\/span><\/h2>\r\n<span style=\"font-weight: 400;\">When working on any appliance, remember to keep safety first. Here are some tips to keep in mind:\u00a0<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Always power off and unplug your appliance or switch off the circuit breaker before attempting any maintenance or replacement work. This keeps you safe by preventing any risk of injury from electric shock.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Wear insulated work gloves to protect your hands from sharp metal parts, pinching hazards and debris.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take your time and don\u2019t rush while working to prevent accidents and personal injuries.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Work in a well-lit area so you can clearly see and access the interior parts.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Clear your workspace of clutter and other obstacles. Keep children and pets away from the work area.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Never work on internal parts with bare wet hands. Make sure the work area is completely dry.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Check your user manual to see if there are specific installation or safety instructions for your part or appliance.\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Be gentle when handling or removing parts. Excessive force might damage the appliance or cause injury.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Wear safety glasses when working with chemicals, dust or cleaning large debris to prevent injury.\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If the appliance has recently been used, give it plenty of time for any heating parts to cool down before working on it.\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take pictures or make a note of wiring terminals or other connections before disconnecting to prevent any problems with reassembly.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">When working with wires, avoid touching any exposed wires or terminals. If you need to touch a wire, use a non-conductive tool or wear insulating gloves to prevent electrical shock.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Turn off the water supply at the outlet before beginning repairs to any appliance parts that hold water. Have towels ready for any residual water in the system when removing parts.\u00a0<\/span><\/li>\r\n<\/ul>\r\n<h2><span style=\"font-weight: 400;\">Removal and Disassembly Steps<\/span><\/h2>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Open the dryer door and remove the lint screen.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use a Philips screwdriver to remove the two screws located in the front of the lint screen housing and the three screws along the rear on the lint filter grille.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Locate the moisture sensor bar mounted to the lint filter grille. It will have two wires connected to it - one yellow and one black.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u00a0Make a note or take a picture of which wire connects to each terminal. Disconnect the yellow and black wires from the old moisture sensor terminals using needle nose pliers.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">With the wires removed, you can take the lint screen grille out.\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Use the needle nose pliers to push in the tab on the terminal to remove the sensor bar.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slide the old moisture sensor bar out and set it aside.<\/span><\/li>\r\n<\/ol>\r\n<h2><span style=\"font-weight: 400;\">Installation and Reassembly Steps<\/span><\/h2>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Clean out any built-up lint debris inside the moisture sensor bracket using compressed air or a small brush.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Insert the new moisture sensor into the bracket. Feed the terminal end through the slot, it should click securely into place.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reconnect the black and yellow wires to their respective moisture sensor terminals, matching their previous positions. Refer back to your note or the picture to see where they need to go.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tilt the lint screen grille up into position and secure with the three rear screws and two front screws.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Replace the lint filter.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Carefully close the dryer door and run a test automatic drying cycle with wet towels and confirm the machine fully dries the load and stops when finished.<\/span><\/li>\r\n<\/ol>\r\n<h2><span style=\"font-weight: 400;\">More Information<\/span><\/h2>\r\n<span style=\"font-weight: 400;\">Thanks for reading! If you have any other appliance repair needs or projects, you can find more resources including our DIY blog at <\/span><a href=\"https:\/\/www.appliancepartspros.com\/\"><b>AppliancePartsPros.com<\/b><\/a><span style=\"font-weight: 400;\">. There, you can enter your model number to order the exact parts you need. Most orders arrive in two business days.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">You can also reach our award-winning customer service team at 1-877-477-7278, chat with a pro on our website and watch thousands of free video tutorials on <\/span><a href=\"https:\/\/www.youtube.com\/@appliancepartspros\/videos\"><b>our YouTube channel<\/b><\/a><span style=\"font-weight: 400;\">.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Make 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;\">!<\/span>\n\n<div id=\"app-safety-notes\" style=\"border:1px solid #E6E6E6;border-radius:8px;overflow:hidden;margin:22px 0;font-family:system-ui,-apple-system,sans-serif\"><div style=\"background:#1C437C;color:#fff;padding:9px 16px;font-weight:700;font-size:15px\">\u26a1&nbsp;Electrical safety \u2014 before you start<\/div><ul style=\"margin:0;padding:14px 20px 14px 38px;font-size:15px;line-height:1.6;color:#1A1A1A;background:#fff\"><li style=\"margin:6px 0\"><b>Disconnect power<\/b> before you start \u2014 unplug it or switch off the breaker, and <b>confirm it's dead<\/b>.<\/li><li style=\"margin:6px 0\">Follow your <b>local electrical code<\/b>.<\/li><li style=\"margin:6px 0\">Anything involving <b>household wiring, outlets, or the breaker panel<\/b> itself is <b>licensed-electrician territory<\/b>.<\/li><\/ul><\/div>\n[\/av_textblock]\r\n\r\n[av_blog blog_type='posts' categories='10' link='category' blog_style='blog-grid' content_length='content' contents='title_read_more' date_filter='' date_filter_start='' date_filter_end='' date_filter_format='yy\/mm\/dd' offset='0' conditional='' bloglist_width='' 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replacing the Whirlpool dryer moisture sensor bar WP3387223\u2014follow our clear, step-by-step instructions.\" \/>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link rel=\"canonical\" href=\"https:\/\/www.appliancepartspros.com\/b\/replacing-moisture-sensor-bar-wp3387223-on-a-whirlpool-dryer\/\" \/>\r\n<meta property=\"og:locale\" content=\"en_US\" \/>\r\n<meta property=\"og:type\" content=\"article\" \/>\r\n<meta property=\"og:title\" content=\"Replacing Moisture Sensor Bar WP3387223 on a Whirlpool Dryer\" \/>\r\n<meta property=\"og:description\" content=\"Fix poor drying performance by replacing the Whirlpool dryer moisture sensor bar WP3387223\u2014follow our clear, step-by-step instructions.\" \/>\r\n<meta property=\"og:url\" content=\"https:\/\/www.appliancepartspros.com\/b\/replacing-moisture-sensor-bar-wp3387223-on-a-whirlpool-dryer\/\" \/>\r\n<meta property=\"og:site_name\" content=\"AppliancePartsPros 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