[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-653587-105":59,"doc-detail-653587-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","ownermanual-liftmaster-2420l","OwnerManual LiftMaster 2420L","","User guide for LiftMaster residential garage door openers, including models 2100L/2300L and 2220L/2420L (camera). Provides safety symbols and signal words review, critical installation warnings, and instructions for features such as myQ app control, programming, camera setup, and battery backup. Covers installation steps, adjustments, routine maintenance, troubleshooting, repair parts, and warranty details, emphasizing proper Protector System connection and safe operation to reduce risks of injury, death, and product damage.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":30,"@type":76,"position":81},"https://docshare.wps.com/document/technology/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/ownermanual-liftmaster-2420l/653587/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/ownermanual-liftmaster-2420l/653587.png","ImageObject",300,407,{"name":92,"@type":93},"Elsa","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-01","2026-10-25",true,{"@type":102,"interactionType":103,"userInteractionCount":44},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"Which models are covered in this user guide?","Question",{"text":112,"@type":113},"The guide covers residential use models 2100L, 2300L, and 2220L/2420L (camera).","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"What must be connected to ensure the garage door will close properly?",{"text":117,"@type":113},"The door will not close unless the Protector System® is connected and properly aligned.",{"name":119,"@type":110,"acceptedAnswer":120},"What does the guide instruct regarding unattended close features?",{"text":121,"@type":113},"Timer-to-Close (TTC), the myQ® App, and myQ® devices are to be used only with sectional doors, since they allow closing without being in the line of sight.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},653587,1793037559,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":29,"category_name":30,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":44,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":139,"language":140,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":67,"update_tm":144,"read_time":145},137455077381,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","| |  |  |  |  |  | [www.liftmaster.com](www.liftmaster.com) |  |\n| --- | --- | --- | --- | --- | --- | --- | --- |\n| User’s Guide\u003Cbr>Model: 2100L,2300L\u003Cbr>Model: 2220L,2420L (Camera) FOR RESIDENTIAL USE ONLY\u003Cbr>PRE-PROGRAMMED REMOTE CONTROL INCLUDED |  |  |  |  | 2100L |  | 2220L |\n| To register your garage door opener to receive updates and offers from LiftMaster, visit [liftmaster.registria.com](liftmaster.registria.com) or use the icon below: |  |  |  | 2300L 2420L\u003Cbr>• Please read this guide and the enclosed safety materials carefully!\u003Cbr>• The door WILL NOT CLOSE unless the Protector System® is connected and properly aligned.\u003Cbr>• Periodic checks ofthe garage door opener are required to ensure safe operation.\u003Cbr>• This garage door opener is ONLY compatible with myQ® and Security+ 3.0™ accessories.\u003Cbr>• DO NOT install on a one-piece door if using devices or features providing unattended close. Unattended devices and features are to be used ONLY with sectional doors.\u003Cbr>• Attach warning labels to the location indicated on label. |  |  |  |\n| | | | 1. Take a photo of the camera icon including the points ( ) .\u003Cbr>2. Send it in by texting the photo to 71403 (US) or visit [www.liftmaster.photo](www.liftmaster.photo) (Global).\u003Cbr>\u003Cbr>\u003Cbr>|  |  |  |  |\n| |  |  |  |  |  | Use QR code to download the free myQ App. | |\n\nSafety Symbol and Signal Word Review ............................................... 2  \nImportant Safety Instructions ........................................................ 3  \nmyQ App Control .................................................................... 5  \nProgramming........................................................................ 6  \nCamera ............................................................................. 7  \nBattery Backup ...................................................................... 9  \nInstallation......................................................................... 10  \nAdjusments ........................................................................ 11  \nMaintence.......................................................................... 14  \nTroubleshooting .................................................................... 14  \nRepair Parts ........................................................................ 15  \nWarranty ........................................................................... 15  \nAutomatic Garage Door Opener Safety & Maintenance Guide ......................... 16  \nRoutine Maintenance Can Prevent Tragedies ......................................... 17  \nmyQ® Serial Number:  \nDate of Purchase:  \n/ /  \nmyQ® Serial Number  \nSerial  \nNumber  \nThis garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained and tested in strict accordance with the instructions and warnings contained in this manual.  \n\n|  WARNING |\n| --- |\n| Mechanical |\n\n\n|  WARNING |\n| --- |\n| Electrical |\n\nWhen you see these Safety Symbols and Signal Words on the following pages, they will alert you to the possibility of serious injury or death if you do not comply with the warnings that accompany them. The hazard may come from something mechanical or from electric shock. Read the warnings carefully.  \n\n|  CAUTION |\n| --- |\n|  |\n\nWhen you see this Signal Word on the following pages, it will alert you to the possibility of damage to your garage door and/or the garage door opener if you do not comply with the cautionary statements that accompany it. Read them carefully.  \nWARNING: This product can expose you to chemicals including lead, which are known tothe State of California to cause cancer or birth defects or other reproductive harm. For more information go[to www.P65Warnings.ca.gov](to www.P65Warnings.ca.gov).  \nUnattended Operation  \nThe Timer-to-Close (TTC) feature, the myQ® App, and myQ® Garage Door and Gate Monitor are examples of unattended close and are to be used ONLY with sectional doors. Any device or featu","cbCaimT98iwrAoko","https://ap.wps.com/l/cbCaimT98iwrAoko","pdf",3106555,17,"English","# Safety Symbol and Signal Word Review\n# Important Safety Instructions\n# myQ App Control\n# Programming\n# Camera\n# Battery Backup\n# Installation\n# Adjustments\n# Maintenance\n# Troubleshooting\n# Repair Parts\n# Warranty\n# Automatic Garage Door Opener Safety & Maintenance Guide","[{\"question\":\"Which models are covered in this user guide?\",\"answer\":\"The guide covers residential use models 2100L, 2300L, and 2220L/2420L (camera).\"},{\"question\":\"What must be connected to ensure the garage door will close properly?\",\"answer\":\"The door will not close unless the Protector System® is connected and properly aligned.\"},{\"question\":\"What does the guide instruct regarding unattended close features?\",\"answer\":\"Timer-to-Close (TTC), the myQ® App, and myQ® devices are to be used only with sectional doors, since they allow closing without being in the line of sight.\"}]","OwnerManual LiftMaster 2420L | PDF",1792893057,43]