{"product_id":"oem-goodman-manual-reset-limit-switch-for-ames921004cnaa-10123539","title":"OEM Goodman Manual Reset Limit Switch for AMES921004CNAA — 10123539","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 10123539 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM safety high-limit control for the \u003cstrong\u003eAmana AMES921004CNAA\u003c\/strong\u003e gas furnace. This normally-closed switch opens the control circuit and shuts down the furnace if it detects excessive temperature — typically from a blocked heat exchanger, dirty filter, or blower failure — protecting against overheating and unsafe operation. Because it is a \u003cem\u003emanual reset\u003c\/em\u003e device, it requires a deliberate button press to restore operation, alerting the homeowner that a fault occurred.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 10123539\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual reset high-limit \/ rollout safety switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContacts:\u003c\/strong\u003e Normally closed (opens on overtemperature)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Manual push-button\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e AMES921004CNAA (and select Goodman\/Amana furnaces)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment:\u003c\/strong\u003e Gas furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a \u003cstrong\u003egenuine OEM Goodman safety control\u003c\/strong\u003e calibrated to the exact trip temperature specified for your furnace. Because it is a life-safety component, we strongly recommend OEM — a generic switch with a different trip point can either nuisance-trip or, worse, fail to shut the furnace down when it should. Never substitute an unmatched limit switch.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2 of 5).\u003c\/strong\u003e About 20–30 minutes. Cut power and gas, remove the two mounting screws, transfer the spade wire connectors to the new switch, and remount. If a limit keeps tripping, diagnose and correct the underlying cause (airflow, heat exchanger) — do not simply replace and reset. When in doubt, call a licensed technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057594581363,"sku":"GOODMAN-4753","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-manual-reset-limit-switch-for-ames921004cnaa-10123539","provider":"National HVAC Parts","version":"1.0","type":"link"}