{"product_id":"liftmaster-k1a6408","title":"LiftMaster K1A6408 APE Assembly — RPM Board, Plastic Tray and Mounting Hardware","description":"\u003cp\u003e\u003cstrong\u003eThe LiftMaster K1A6408 is an APE service assembly identified in supported gate-operator repair drawings as an RPM board with a plastic tray and mounting hardware. It belongs to the operator’s position-feedback arrangement and must be selected from the exact model’s parts diagram. It is not automatically the same package as a model-specific APS encoder kit with its associated cable or mechanism. Confirm whether the repair calls for this board-and-tray assembly or a larger encoder service kit before ordering.\u003c\/strong\u003e\u003c\/p\u003e\u003ch2\u003eCompatibility — Models, Versions and Exclusions\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eModel or selection point\u003c\/th\u003e\n\u003cth\u003eCompatibility requirement\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSW24VDC\u003c\/td\u003e\n\u003ctd\u003eManufacturer drawing lists K1A6408 separately from APS encoder K76-34644.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCSL24UL\u003c\/td\u003e\n\u003ctd\u003eManufacturer drawing lists K1A6408 separately from K76-34697.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRSW12U\u003c\/td\u003e\n\u003ctd\u003eManufacturer repair-parts drawing identifies K1A6408; confirm the installed assembly.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComplete APS encoder kits\u003c\/td\u003e\n\u003ctd\u003eDo not assume identical package contents or included harnesses.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResidential garage-door RPM sensors\u003c\/td\u003e\n\u003ctd\u003eDifferent service references; this is not a universal speed-sensor replacement.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eChoose the Required Assembly, Not Just the Word Encoder\u003c\/h2\u003e\u003cp\u003eThe terms APE, APS and RPM appear near one another in manufacturer parts drawings. They do not mean that every listed part contains the same hardware. A board mounted on its plastic tray may be the correct repair when that specific assembly has failed, while a damaged cable or associated encoder mechanism may require a different kit. Have the technician identify the required service reference.\u003c\/p\u003e\u003cp\u003ePosition-related faults can also arise from loose connections, damaged wiring or a mechanical problem that prevents normal travel. Record diagnostic information before replacing parts. The technician should inspect the feedback path and the gate drive together, then perform the model-specific setup after service. Replacing the board does not justify bypassing a fault or increasing force to overcome a binding gate.\u003c\/p\u003e\u003ch2\u003eSpecifications and Product Identification\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003eK1A6408\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer description\u003c\/td\u003e\n\u003ctd\u003eAPE assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDocumented components\u003c\/td\u003e\n\u003ctd\u003ePlastic tray, RPM board and mounting hardware\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eService component within the operator’s position-feedback system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDocumented examples\u003c\/td\u003e\n\u003ctd\u003eCSW24VDC, CSL24UL and RSW12U parts drawings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelection basis\u003c\/td\u003e\n\u003ctd\u003eExact operator diagram and required kit scope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eBefore Ordering\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRecord the exact operator model and the installed assembly’s part reference.\u003c\/li\u003e\n\u003cli\u003eCheck the drawing for K1A6408 and distinguish nearby APS kit numbers.\u003c\/li\u003e\n\u003cli\u003eInspect wiring, connectors and the mechanism associated with the feedback system.\u003c\/li\u003e\n\u003cli\u003eConfirm whether the required cable and other parts are supplied separately.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePackage Contents and Separate Requirements\u003c\/h2\u003e\u003cp\u003eThe manufacturer drawings identify the APE assembly with plastic tray, RPM board and mounting hardware. Confirm the current kit inventory before ordering. A complete operator, main control board, motor or every model-specific encoder cable is not promised as included. A diagram showing the APE beside another encoder reference should not be read as one combined package.\u003c\/p\u003e\u003ch2 class=\"safety-warning\"\u003eSafety Warnings — Read Before Installation or Service\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWARNING: Incorrect position feedback can cause unexpected or incorrect gate travel. Use a qualified gate-systems technician.\u003c\/li\u003e\n\u003cli\u003eDisconnect all applicable utility, solar and battery power, and secure the gate before servicing electronics.\u003c\/li\u003e\n\u003cli\u003eDo not bypass feedback or monitored-protection inputs to make a faulted system operate.\u003c\/li\u003e\n\u003cli\u003eComplete the prescribed setup and verify both travel endpoints, reversal and all required protection devices before normal use.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eRelated Products and Important Differences\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/garage-doorparts.com\/products\/liftmaster-lmrrul-monitored-retro-reflective-photo-eye\"\u003eLMRRUL monitored photo eye\u003c\/a\u003e — a separate external safety sensor; it does not supply internal position feedback.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/garage-doorparts.com\/products\/liftmaster-lmwekitu-monitored-wireless-edge-kit-for-gate-operators\"\u003eLMWEKITU monitored wireless edge kit\u003c\/a\u003e — a separate edge communication system for approved controls; it is not part of the APE kit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003ch3\u003eIs this a complete APS encoder kit?\u003c\/h3\u003e\u003cp\u003eDo not assume so. The documentation identifies a board, tray and mounting hardware; model-specific APS kits are separately listed.\u003c\/p\u003e\u003ch3\u003eIs K1A6408 the same as K76-34697?\u003c\/h3\u003e\u003cp\u003eThey are separate references in the CSL24UL drawing. Match the diagnosed repair and required contents rather than treating the numbers as interchangeable.\u003c\/p\u003e\u003ch3\u003eWill replacing it resolve every position fault?\u003c\/h3\u003e\u003cp\u003eNo. Wiring, connections and the associated drive mechanism also need inspection.\u003c\/p\u003e\u003ch3\u003eCan I use a residential RPM sensor instead?\u003c\/h3\u003e\u003cp\u003eNo universal substitution is established. Residential opener sensors have different service references and arrangements.\u003c\/p\u003e\u003ch2\u003eNeed Help Confirming the Right Product?\u003c\/h2\u003e\u003cp\u003e\u003ca href=\"https:\/\/garage-doorparts.com\/pages\/contact\"\u003eContact Garage-DoorParts.com before ordering\u003c\/a\u003e. Send the full equipment model, readable part labels and photographs of the installed assembly. Include the dimensions, electrical configuration or accessory details relevant to your project so the listing can be checked against the actual installation.\u003c\/p\u003e","brand":"LiftMaster","offers":[{"title":"Default Title","offer_id":60655772401950,"sku":"K1A6408","price":10000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0978\/2781\/5710\/files\/k1a6408.jpg?v=1793139896","url":"https:\/\/garage-doorparts.com\/products\/liftmaster-k1a6408","provider":"garage-doorparts.com","version":"1.0","type":"link"}