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Provides safety signal-word review, warnings for mechanical and electrical hazards, and guidance to prevent serious injury including disabling locks, avoiding unattended close on one-piece doors, and requiring periodic inspections. Covers preparation, assembly, installation, door control and Protector System® setup, power, adjustments, operation features like multi-function control panel and remote control, maintenance, troubleshooting, accessories, warranty, and repair parts.",{"@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":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/garage-door-opener-owners-manual-chain-drive/641453/",{"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/garage-door-opener-owners-manual-chain-drive/641453.png","ImageObject",300,407,{"name":92,"@type":93},"Grenda","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-04","2026-10-23",true,{"@type":102,"interactionType":103,"userInteractionCount":34},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What must be connected and properly aligned to ensure the door closes?","Question",{"text":112,"@type":113},"The manual states the door will not close unless the Protector System® is connected and properly aligned.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Why should one-piece doors be avoided when using unattended close devices or features?",{"text":117,"@type":113},"Devices or features providing unattended close are to be used only with sectional doors; do not install on a one-piece door in those cases.",{"name":119,"@type":110,"acceptedAnswer":120},"How can owners check whether the garage door is balanced and safe to operate?",{"text":121,"@type":113},"Disable locks and remove ropes, lift the door halfway up and release; if balanced it should stay in place. Then raise/lower the door to check for binding, sticking, or being out of balance and call a trained technician if issues are found.","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},641453,1792723308,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":34,"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,"preview_page_count":4},7971474921005,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","| \u003Cbr>~~ ~~ Garage Opener ~~ ~~ |  | Owner’s Manual C203 • C400 • C410 Chain Drive\u003Cbr>Garage Door Opener\u003Cbr>FOR RESIDENTIAL USE ONLY\u003Cbr>PRE-PROGRAMMED REMOTE CONTROL INCLUDED |  | Contents\u003Cbr>Preparation ...................................... 2-5\u003Cbr>Assembly ....................................... 6-10\u003Cbr>Installation   11-28\u003Cbr>Install the Door Control ............ 21-22\u003Cbr>Install the Protector System® .... 23-26\u003Cbr>Power...................................... 27-28\u003Cbr>Adjustments................................. 29-31\u003Cbr>Operation..................................... 32-37\u003Cbr>Features .......................................33\u003Cbr>Using your Garage Door Opener.....34 Using the Multi-Function\u003Cbr>Control Panel   34-35\u003Cbr>Remote Control.............................36\u003Cbr>Homelink®   36\u003Cbr>To Erase the Memory .....................37\u003Cbr>To Open the Door Manually ...........37\u003Cbr>Maintenance .....................................38\u003Cbr>Troubleshooting........................... 39-40\u003Cbr>Accessories........................................41\u003Cbr>Warranty...........................................42\u003Cbr>Repair Parts ................................. 43-44\u003Cbr>[www.chamberlain.com](www.chamberlain.com)[ ](www.chamberlain.com)[www.mychamberlain.com](www.mychamberlain.com) |\n| --- | --- | --- | --- | --- |\n|  |  | | TO WATCH VIDEOS GOTO:\u003Cbr>[tinyurl.com/lgh5x3h](tinyurl.com/lgh5x3h) |  |\n| • Please read this manual and the enclosed safety materials carefully!\u003Cbr>• Fasten the manual near the garage door after installation.\u003Cbr>• The door WILL NOT CLOSE unless the Protector System® is connected and properly aligned.\u003Cbr>• Periodic checks of the garage door opener are required to ensure safe operation.\u003Cbr>\u003Cbr>| • The model number label is located on the front panel of your garage door opener.\u003Cbr>• This garage door opener is compatible with MyQ® and Security+ 2.0® 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. |  |  |  |\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.  \nMechanical  \nElectrical  \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.  \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](go to www.P65Warnings.ca.gov)[ www.P65Warnings.ca.gov](go to www.P65Warnings.ca.gov).  \nUnattended Operation  \nThe Timer-to-Close (TTC) feature, the MyQ® Smartphone Control 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® Smartphone Control, and any other MyQ® devices are to be used ONLY with sectional doors.  \nCheck the Door  \n\n| |\n| --- |\n| To prevent possible SERIOUS INJURY or DEATH:\u003Cbr>l ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. An unbalanced garage door may NOT reverse when required.\u003Cbr>l NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their har","cbCaihAr9RDCZXgY","https://ap.wps.com/l/cbCaihAr9RDCZXgY","pdf",5788800,44,"English","# Contents\n## Preparation\n## Assembly\n## Installation\n## Operation\n## Maintenance\n## Troubleshooting\n## Accessories\n## Warranty\n## Repair Parts","[{\"question\":\"What must be connected and properly aligned to ensure the door closes?\",\"answer\":\"The manual states the door will not close unless the Protector System® is connected and properly aligned.\"},{\"question\":\"Why should one-piece doors be avoided when using unattended close devices or features?\",\"answer\":\"Devices or features providing unattended close are to be used only with sectional doors; do not install on a one-piece door in those cases.\"},{\"question\":\"How can owners check whether the garage door is balanced and safe to operate?\",\"answer\":\"Disable locks and remove ropes, lift the door halfway up and release; if balanced it should stay in place. Then raise/lower the door to check for binding, sticking, or being out of balance and call a trained technician if issues are found.\"}]","Garage Door Opener - Owner’s Manual - Chain Drive | PDF",1792714077,111]