{"product_id":"oem-goodman-210-f-primary-limit-switch-for-amh80453anac-b1370190","title":"OEM Goodman 210°F Primary Limit Switch for AMH80453ANAC — B1370190","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370190 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM safety control engineered for \u003cstrong\u003eAMH80453ANAC\u003c\/strong\u003e gas furnaces and other compatible Goodman\/Amana 80% AFUE units. This normally-closed thermal switch continuously monitors heat-exchanger temperature and interrupts the gas valve and igniter circuit if the furnace overheats, protecting the heat exchanger, blower, and surrounding components from thermal damage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCutout temperature: 210°F (opens on rise)\u003c\/li\u003e\n\u003cli\u003eType: Automatic-reset primary high-limit switch\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally closed (SPST)\u003c\/li\u003e\n\u003cli\u003eFit: Direct replacement for Goodman\/Amana AMH80453ANAC\u003c\/li\u003e\n\u003cli\u003eMounting: Flange-mount, matches OEM footprint\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur genuine OEM B1370190 is calibrated to the exact 210°F trip point your furnace's control board expects. Generic universal limit switches often carry loose temperature tolerances that cause premature short-cycling or, worse, allow overheating. Choosing OEM guarantees correct calibration, proper reset behavior, and factory-matched terminal spacing—no wiring adapters or guesswork.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Replacement typically takes 10–15 minutes: shut off power and gas, unplug the two spade terminals, remove two mounting screws, and swap in the new switch. Always confirm the part number on your existing switch before installing. If you're not comfortable working near the gas valve or burner assembly, consult a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057602609523,"sku":"GOODMAN-5030","price":14.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-210-f-primary-limit-switch-for-amh80453anac-b1370190","provider":"National HVAC Parts","version":"1.0","type":"link"}