{"product_id":"oem-goodman-manual-reset-limit-switch-for-amss921004cnaa-10123539","title":"OEM Goodman Manual Reset Limit Switch for AMSS921004CNAA — 10123539","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 10123539 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM safety control for the Goodman\/Amana \u003cstrong\u003eAMSS921004CNAA\u003c\/strong\u003e gas furnace. This high-limit switch monitors heat-exchanger temperature and cuts power to the gas valve if the furnace overheats, protecting the unit and your home. Because it is a \u003cstrong\u003emanual reset\u003c\/strong\u003e device, it must be pressed to restore operation after a trip — an intentional safety feature that flags a persistent airflow or overheat problem.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Manual reset high-limit \/ rollout safety switch\u003c\/li\u003e\n\u003cli\u003eReset type: Manual (push-button)\u003c\/li\u003e\n\u003cli\u003eOEM part number: 10123539\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana\u003c\/li\u003e\n\u003cli\u003eCompatible model: AMSS921004CNAA (and select Goodman\/Amana furnaces)\u003c\/li\u003e\n\u003cli\u003eFunction: Overheat \/ thermal cutoff protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eAs a \u003cstrong\u003esafety-critical control\u003c\/strong\u003e, the genuine OEM 10123539 is calibrated to the exact trip temperature your furnace requires. A generic switch with a different set-point can nuisance-trip or, worse, fail to trip when needed. For any limit or rollout switch, always use the OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5).\u003c\/strong\u003e Requires disconnecting furnace power, removing the two mounting screws, and transferring the wire terminals. Basic electrical familiarity recommended; if you are unsure why the original switch tripped, have a licensed HVAC technician diagnose the underlying cause before replacing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057780638067,"sku":"GOODMAN-7479","price":6.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-manual-reset-limit-switch-for-amss921004cnaa-10123539","provider":"National HVAC Parts","version":"1.0","type":"link"}