{"product_id":"oem-goodman-300-f-primary-limit-switch-for-gds80904bna-b1370195","title":"OEM Goodman 300°F Primary Limit Switch for GDS80904BNA — B1370195","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370195\u003c\/strong\u003e is a genuine OEM primary high-limit switch built for the \u003cstrong\u003eGDS80904BNA\u003c\/strong\u003e gas furnace and related Goodman\/Amana 80% AFUE models. Mounted on the heat exchanger vestibule, it continuously monitors supply-air temperature and cuts power to the gas valve if the furnace exceeds a safe operating temperature — protecting the heat exchanger, blower, and ductwork from heat damage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 300°F high-limit\u003c\/li\u003e\n\u003cli\u003eFunction: Primary high-limit safety control\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally closed, auto-reset (opens on over-temp)\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GDS80904BNA and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eGenuine Goodman OEM replacement part\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine B1370195 is factory-matched to the furnace's airflow and heat-exchanger design, so it trips at exactly the right threshold. Generic substitutes with the wrong trip point can cause nuisance shutdowns during normal heating cycles or, worse, fail to trip when needed. For a life-safety component, choose OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Disconnect power and gas, remove the two mounting screws, transfer the wire leads, and reinstall. A 10–15 minute job for most DIYers; call a pro if you're unsure or see signs of heat exchanger cracking.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058076762483,"sku":"GOODMAN-10336","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300-f-primary-limit-switch-for-gds80904bna-b1370195","provider":"National HVAC Parts","version":"1.0","type":"link"}