[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-640864-105":59,"doc-detail-640864-en":131},{"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":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","wi-fi-garage-door-openers-belt-drive-and-chain-drive-models-automatic-garage-door-opener-safety-maintenance-guide","Wi-Fi Garage Door Openers - Belt Drive and Chain Drive Models - Automatic Garage Door Opener Safety & Maintenance Guide","","Automatic garage door opener safety and maintenance guide for Wi‑Fi residential use models, including belt drive and chain drive variants. Covers required precautions such as connecting the Protector System, performing periodic safety checks, and ensuring safe operation before and during installation. Provides compatibility guidance for myQ and Security+ 2.0 accessories, Wi‑Fi setup requirements for smartphone control, and signal-strength testing steps. Includes safety symbol review, hazard warnings, and troubleshooting, maintenance, accessories, warranty, and repair-part references.",{"@graph":69,"@context":123},[70,84,106],{"@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":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/wi-fi-garage-door-openers-belt-drive-and-chain-drive-models-automatic-garage-door-opener-safety-maintenance-guide/640864/",{"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/wi-fi-garage-door-openers-belt-drive-and-chain-drive-models-automatic-garage-door-opener-safety-maintenance-guide/640864.png","ImageObject",300,407,{"name":92,"@type":93},"Logic","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-13","2026-10-22",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",11,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"When will the garage door opener not close?","Question",{"text":113,"@type":114},"The door WILL NOT CLOSE unless the Protector System is connected and properly aligned.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"What accessories is this garage door opener compatible with?",{"text":118,"@type":114},"It is ONLY compatible with myQ and Security+ 2.0 accessories.",{"name":120,"@type":111,"acceptedAnswer":121},"What is required to connect the opener to the myQ app on a smartphone?",{"text":122,"@type":114},"Use a Wi‑Fi enabled smartphone/tablet/laptop, broadband internet, Wi‑Fi signal in the garage at 2.4 GHz (802.11b/g/n required), and the password for the home network.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},640864,1792723159,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":145,"read_time":146,"preview_page_count":4},1099513958762,"https://ap-avatar.wpscdn.com/avatar/1000023916a998db790?x-image-process=image/resize,m_fixed,w_180,h_180&k=1784791008015729253","Wi-Fi® Garage Door Openers  \nBelt Drive Models-8550W 8550WL 8550WLB 8550WLB-267 8557W WLED WLED-267 85503 85503-267 Chain Drive Models-8587W 8587WL 8580WLB  \nFOR RESIDENTIAL USE ONLY • Please read this manual and the safety materials carefully!  \n• The door WILL NOT CLOSE unless the Protector System® is connected and properly aligned.  \n• Periodic checks of the garage door opener are required to ensure safe operation.  \n• This garage door opener is ONLY compatible with myQ® and Security+ 2.0® accessories.  \n• 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.  \n• Attach warning labels to the location indicated on label.  \nLiftMaster  \n300 Windsor Drive  \nOak Brook, IL 60523  \nPreparation  3  \nCarton Inventory: Models 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557WL, WLED, WLED-267, 85503 and 85503-267  6  \nCarton Inventory: Models 8587W, 8587WL, and 8580WLB  7  \nAssembly  8  \nModels 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557W, WLED, WLED-267, 85503, and 85503-267  8  \nModels 8587W, 8587WL, and 8580WLB  10  \nInstallation  12  \nInstall the Door Control  20  \nInstall the Protector System  22  \nPower  26  \nAdjustments  28  \nBattery Backup  31  \nOperation  33  \nMaintenance  41  \nTroubleshooting  42  \nAccessories  44  \nWarranty  45  \nAutomatic Garage Door Opener Safety & Maintenance Guide  46  \nRepair Parts  48  \nModels 8550W, 8550WL, 8550WLB, 8550WLB-267, 8557W, 85503 and 85503-267  48  \nModels WLED and WLED-267  51  \nModels 8587W, 8587WL, and 8580WLB  53  \nmyQ® Serial Number  \nWrite down the following information for future reference:  \nmyQ® Serial Number:  \nProduct S/N:  \nDate of Purchase:  \n/ /  \nmyQ® Serial Number  \nProduct S/N  \nSafety Symbol and Signal Word Review  \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.  \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.  \nMechanical  \nElectrical  \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 to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to [www.P65Warnings.ca.gov](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 feature that allows the door to close without being in the line of sight of the door is considered unattended close. The Timer-to-Close (TTC) feature, the myQ® App, and any other myQ® devices are to be used ONLY with sectional doors.  \nBefore You Connect with Your Smartphone  \nMonitor and control your garage door from anywhere using the myQ® App. You will need:  \n• Wi-Fi enabled smartphone, tablet or laptop  \n• Broadband Internet Connection  \n• Wi-Fi signal in the garage (2.4 GHz, 802.11b/g/n required)  \n• Password for your home network (router's main account, not guest network)  \nTEST THE WI-FI SIGNAL STRENGTH  \nMake sure your mobile device is connected to your Wi-Fi network. Hold your mobile device in the place where your garage door opener will be installed and check the Wi-Fi signal strength.  \nCheck Signal Strength. If you see:  \nWi-Fi signal is strong.  \nThe garage door opener will connect to your Wi-Fi network.  \n\n| \u003Cbr>| Wi-Fi signal","cbCaiePIfw2hapTH","https://ap.wps.com/l/cbCaiePIfw2hapTH","pdf",8676928,55,"English","# Preparation\n## Carton inventory\n## Safety symbol and signal word review\n# Assembly\n## Belt drive models\n## Chain drive models\n# Installation\n## Install the Door Control\n## Install the Protector System\n# Power and adjustments\n## Battery backup\n# Operation\n# Maintenance\n# Troubleshooting\n# Accessories and warranty","[{\"question\":\"When will the garage door opener not close?\",\"answer\":\"The door WILL NOT CLOSE unless the Protector System is connected and properly aligned.\"},{\"question\":\"What accessories is this garage door opener compatible with?\",\"answer\":\"It is ONLY compatible with myQ and Security+ 2.0 accessories.\"},{\"question\":\"What is required to connect the opener to the myQ app on a smartphone?\",\"answer\":\"Use a Wi‑Fi enabled smartphone/tablet/laptop, broadband internet, Wi‑Fi signal in the garage at 2.4 GHz (802.11b/g/n required), and the password for the home network.\"}]","Wi-Fi Garage Door Openers - Belt Drive and Chain Drive Models - Automatic Garage Door Opener Safety & Maintenance Guide | PDF",1792711925,139]