{"id":18571,"date":"2025-06-03T10:05:05","date_gmt":"2025-06-03T17:05:05","guid":{"rendered":"https:\/\/www.appliancepartspros.com\/b\/?p=18571"},"modified":"2026-07-14T12:26:20","modified_gmt":"2026-07-14T19:26:20","slug":"how-to-test-and-replace-the-main-pcb-on-a-samsung-dryer","status":"publish","type":"post","link":"https:\/\/www.appliancepartspros.com\/b\/how-to-test-and-replace-the-main-pcb-on-a-samsung-dryer\/","title":{"rendered":"How to Test and Replace the Main PCB on a Samsung Dryer"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Learn how to test and replace the main PCB on your Samsung dryer using this easy, step-by-step guide to restore full control and operation.<\/p>\n","protected":false},"author":3,"featured_media":18734,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_aviaLayoutBuilderCleanData":"[av_image src='https:\/\/www.appliancepartspros.com\/b\/wp-content\/uploads\/2025\/06\/20250521_1550_Freshly-Folded-Laundry_simple_compose_01jvt6806mfp3tht742t674s5s-1500x630.png' attachment='18734' 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-mbgrr4hg' 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-mbawsrok' admin_preview_bg='']\r\n<span style=\"font-weight: 400;\">When your <\/span><a href=\"https:\/\/www.appliancepartspros.com\/b\/what-is-the-life-expectancy-of-a-samsung-dryer\/\"><span style=\"font-weight: 400;\">Samsung dryer<\/span><\/a><span style=\"font-weight: 400;\"> suddenly stops working or acts unpredictably, it can leave you wondering what went wrong. Often, the culprit is the main PCB (printed circuit board)\u2014the brain of the appliance that keeps everything running smoothly. Whether you have a gas or electric model, we\u2019re here to help you diagnose and replace this essential component like a pro.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">If you need any replacement parts for your <\/span><a href=\"https:\/\/www.appliancepartspros.com\/parts-for-samsung-dv350aep-xaa-00.html\"><b>Samsung dryer<\/b><\/a><span style=\"font-weight: 400;\">, you can enter 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;\"> at<\/span> <a href=\"https:\/\/www.appliancepartspros.com\/\"><b>AppliancePartsPros.com<\/b><\/a><span style=\"font-weight: 400;\"> to order them. Most orders arrive in just two business days, and we have thousands of free guides to show you how to install your new parts.<\/span>\n\nWe 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;\">What you need<\/span><\/h2>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Phillips screwdriver<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Multimeter with needle probes<\/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:<\/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 you attempt any maintenance or replacement work. This keeps you safe by eliminating any risk of electric shock.\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 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 your time while working to prevent accidents and personal injuries. Rushing is the enemy of precision.<\/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 see and access appliance parts.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Keep your workspace free 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 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 the user manual to see if there are specific installation or safety instructions related to your appliance or replacement part.\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 personal injury.<\/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 and debris.<\/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;\">Always take photos or make a note of wiring terminals or other connections before disconnecting them to make reassembly easier.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Don\u2019t test live voltage with a multimeter if you\u2019re unfamiliar with how to prevent short-circuiting.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Consider wearing safety glasses and\/or a dust mask when working with chemicals, dust or a large amount of debris to prevent irritation or injury.<\/span><\/li>\r\n<\/ul>\r\n<h2><span style=\"font-weight: 400;\">How to test and replace the Samsung dryer\u2019s main PCB<\/span><\/h2>\r\n<span style=\"font-weight: 400;\">Here are the steps to access, test, remove, and replace the main PCB in your Samsung dryer.<\/span>\r\n<h3><span style=\"font-weight: 400;\">Step 1. Access the main PCB<\/span><\/h3>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Remove the two screws securing the top panel at the back of the dryer using a Phillips screwdriver.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slide the top panel back, lift it up, and set it aside.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Remove the three screws securing the main control housing to the front and side frame using a Phillips screwdriver.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Carefully rotate the main control to access the wires, making sure no bare wires touch the metal.<\/span><\/li>\r\n<\/ol>\r\n<h3><span style=\"font-weight: 400;\">Step 2. Test the main PCB<\/span><\/h3>\r\n<b><i>LIVE VOLTAGE WARNING: <\/i><\/b><i><span style=\"font-weight: 400;\">For this test, the dryer needs to be plugged in and powered on. Please be very careful to protect yourself from electric shock, which has the potential to cause serious injuries. Don\u2019t ever test live voltage if you\u2019re uncomfortable using a multimeter.<\/span><\/i>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Plug the power cord back in or flip the breaker on.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Set a multimeter to Volts AC (symbol: \"V\" with a squiggly line).<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Test for voltage by placing the probes on the black wire at Relay 1 and the brown wire at connection CN1. Check for 120 Volts AC.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Set the multimeter to Volts DC (symbol: \"V\" with a dotted line).<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Test at connection CN2 by placing the black probe on the pink wire at pin 4 and the red probe on the white wire at pin 5 to check for 5 Volts DC.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Move the red probe to the red wire at pin 6 and check for 15 Volts DC.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If any voltage readings are missing, proceed with replacing the main PCB. If all readings are present, investigate other causes.<\/span><\/li>\r\n<\/ol>\r\n<h3><span style=\"font-weight: 400;\">Step 3. Remove the main PCB<\/span><\/h3>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Unplug the power cord.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take a picture of the wire connections for reference.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Remove the screw securing the main control at the front of the housing using a Phillips screwdriver.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slide the main control forward and pull it away from the housing.<\/span><\/li>\r\n<\/ol>\r\n<h3><span style=\"font-weight: 400;\">Step 4. Replace the main PCB<\/span><\/h3>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slide the new main PCB into the housing and secure it with the Phillips screw.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reconnect the wires.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Rotate the main control back into place and secure it with the three Phillips screws removed earlier.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Reattach the top panel by placing it about three inches back from the console, sliding it forward, and securing it with the final screws.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Plug the power cord back in or flip the breaker on to complete the process.<\/span><\/li>\r\n<\/ol>\r\n<h2><span style=\"font-weight: 400;\">Let us help<\/span><\/h2>\r\n<span style=\"font-weight: 400;\">We appreciate you dropping by! Hopefully this guide made it easy to test and replace the <\/span><span style=\"font-weight: 400;\">main PCB <\/span><span style=\"font-weight: 400;\">in your <\/span><span style=\"font-weight: 400;\">Samsung dryer<\/span><span style=\"font-weight: 400;\">.<\/span><span style=\"font-weight: 400;\"> If you\u2019re still in need of any parts, head over to <\/span><a href=\"http:\/\/appliancepartspros.com\"><b>AppliancePartsPros.com<\/b><\/a><span style=\"font-weight: 400;\"> with your model number. Our inventory of over two million parts and quick shipping means that you should get an exact replacement on your doorstep in just a few days.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Got questions? We have answers! Give us a call at 1 (877) 477-7278 or start a chat with one of our customer service team members online. In the meantime, you can explore <\/span><a href=\"https:\/\/www.appliancepartspros.com\/b\/\"><b>our DIY blog<\/b><\/a><span style=\"font-weight: 400;\"> and check out <\/span><a href=\"https:\/\/www.youtube.com\/@appliancepartspros\/videos\"><b>our videos on YouTube<\/b><\/a><span style=\"font-weight: 400;\">. And don't forget 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>X<\/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;\"> so you don't miss out on our latest and greatest!<\/span>\n\n<em><span style=\"font-weight: 400;\">The information in this article may not apply to your specific appliance model.\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='' columns='3' preview_mode='auto' image_size='portfolio' items='3' paginate='yes' lazy_loading='disabled' alb_description='' id='' custom_class='' av_uid='av-mbb4j2xy']\r\n\r\n[av_social_share title='Share this entry' buttons='' share_facebook='' 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