{"id":4412,"date":"2020-08-28T17:02:12","date_gmt":"2020-08-28T23:02:12","guid":{"rendered":"https:\/\/ddmgaragedoors.com\/blog\/?p=4412"},"modified":"2023-07-26T10:08:28","modified_gmt":"2023-07-26T16:08:28","slug":"limit-switches","status":"publish","type":"post","link":"https:\/\/ddmgaragedoors.com\/blog\/2020\/08\/28\/limit-switches\/","title":{"rendered":"Limit Switches"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"How LiftMaster Limit Switches Work\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/qLEZOQmZG6Q?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Garage door opener <a href=\"https:\/\/ddmgaragedoors.com\/parts\/garage-door-opener-limit-switches-timers-counters.html\">limit switches<\/a> electrically limit the door travel as it opens and closes. These switches &#8220;tell&#8221; the opener or operator when to stop. In this video, we explain how <a href=\"https:\/\/www.youtube.com\/watch?v=wx3uD_2MDQo\">LiftMaster<\/a> limit switches work, and how to adjust them.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-how-they-work\">How they work<\/h3>\n\n\n\n<p>LiftMaster uses a common system of nuts on a shaft to limit the movement of garage doors. When the motor turns, it turns the limit shaft. This in turn moves the two limit nuts along the shaft. The nuts move in one direction as the door opens, and move back as the door closes.<\/p>\n\n\n\n<p>When one of the nuts hits the limit switch itself, it sends a signal to the motor to stop turning. This keeps the door from opening or closing too far, both of which could potentially damage the door or the motor. The distance a garage door is able to travel can be adjusted by moving the nuts left or right along the shaft.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/ddmgaragedoors.com\/blog\/uploads\/2022\/11\/Liftmaster-Limit-Switches-1.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ddmgaragedoors.com\/blog\/uploads\/2022\/11\/Liftmaster-Limit-Switches-1.jpg\" alt=\"The limit switches in a LiftMaster Operator, near the bottom below the logic board\" class=\"wp-image-5162\" width=\"495\" height=\"240\" srcset=\"https:\/\/ddmgaragedoors.com\/blog\/uploads\/2022\/11\/Liftmaster-Limit-Switches-1.jpg 768w, https:\/\/ddmgaragedoors.com\/blog\/uploads\/2022\/11\/Liftmaster-Limit-Switches-1-300x146.jpg 300w\" sizes=\"auto, (max-width: 495px) 100vw, 495px\" \/><\/a><figcaption class=\"wp-element-caption\">LiftMaster limit switch system<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">How to adjust a limit switch<\/h3>\n\n\n\n<p>A metal plate under the shaft keeps the nuts in place. In order to adjust the distance the door will travel, push down the plate and move the limit nut along the shaft. Moving the nut away from the switch increases the distance the garage door will travel, while moving it towards the switch decreases the distance. Be careful while adjusting the door&#8217;s travel distance, as it can be very easy to break the switch itself.<\/p>\n\n\n\n<p>See <a href=\"https:\/\/ddmgaragedoors.com\/blog\/2022\/11\/02\/different-types-of-limit-switches\/\">this article<\/a> for more information about the different types of limit switches.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Garage door opener limit switches electrically limit the door travel as it opens and closes. These switches &#8220;tell&#8221; the opener or operator when to stop. In this video, we explain how LiftMaster limit switches work, and how to adjust them. How they work LiftMaster uses a common system of nuts on a shaft to limit [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5028,5],"tags":[4043,3986,4191,95],"class_list":["post-4412","post","type-post","status-publish","format-standard","hentry","category-how-garage-doors-work","category-technical-support","tag-commercial-operators","tag-liftmaster","tag-limit-switches","tag-opener"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.2 (Yoast SEO v25.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Limit Switches - DDM Garage Doors Blog<\/title>\n<meta name=\"description\" content=\"Garage door limit switches limit the movement of the door as it opens and closes. These switches &quot;tell&quot; the opener or operator when to stop.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ddmgaragedoors.com\/blog\/2020\/08\/28\/limit-switches\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Limit Switches\" \/>\n<meta property=\"og:description\" content=\"Garage door limit switches limit the movement of the door as it opens and closes. These switches &quot;tell&quot; the opener or operator when to stop.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ddmgaragedoors.com\/blog\/2020\/08\/28\/limit-switches\/\" \/>\n<meta property=\"og:site_name\" content=\"DDM Garage Doors Blog\" \/>\n<meta property=\"article:published_time\" content=\"2020-08-28T23:02:12+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-07-26T16:08:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ddmgaragedoors.com\/blog\/uploads\/2022\/11\/Liftmaster-Limit-Switches-1.jpg\" \/>\n<meta name=\"author\" content=\"Dan Musick\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dan Musick\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/ddmgaragedoors.com\/blog\/2020\/08\/28\/limit-switches\/\",\"url\":\"https:\/\/ddmgaragedoors.com\/blog\/2020\/08\/28\/limit-switches\/\",\"name\":\"Limit Switches - DDM Garage Doors Blog\",\"isPartOf\":{\"@id\":\"https:\/\/ddmgaragedoors.com\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/ddmgaragedoors.com\/blog\/2020\/08\/28\/limit-switches\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/ddmgaragedoors.com\/blog\/2020\/08\/28\/limit-switches\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/ddmgaragedoors.com\/blog\/uploads\/2022\/11\/Liftmaster-Limit-Switches-1.jpg\",\"datePublished\":\"2020-08-28T23:02:12+00:00\",\"dateModified\":\"2023-07-26T16:08:28+00:00\",\"author\":{\"@id\":\"https:\/\/ddmgaragedoors.com\/blog\/#\/schema\/person\/6b44055c953f4d8e99a57a40629a35c8\"},\"description\":\"Garage door limit switches limit the movement of the door as it opens and closes. 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