{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-gdt045-3-b1370113","title":"OEM Goodman 120°F Auxiliary Limit Switch for GDT045-3 — B1370113","description":"\u003ch2\u003eGoodman B1370113 Auxiliary Limit Switch (120°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB1370113\u003c\/strong\u003e is a genuine OEM auxiliary high-limit safety switch rated to open at \u003cstrong\u003e120°F\u003c\/strong\u003e, designed for the \u003cstrong\u003eGDT045-3\u003c\/strong\u003e gas furnace. This normally-closed thermal switch monitors temperature in the blower or return-air area and cuts power to the burners if it senses an over-temperature condition caused by restricted airflow, a dirty filter, or blower failure. It is a critical safety device that helps prevent overheating and heat-exchanger damage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B1370113\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Temperature:\u003c\/strong\u003e 120°F (opens on rise)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auxiliary high-limit \/ thermal safety switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContacts:\u003c\/strong\u003e Normally closed, auto-reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model:\u003c\/strong\u003e GDT045-3 gas furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eLimit switches are safety components, so exact temperature calibration matters. The OEM B1370113 opens at the precise 120°F rating the GDT045-3 was engineered for. Generic switches with an approximate rating can nuisance-trip or, worse, fail to trip — defeating the safety function. Always replace with the correct OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1 of 5).\u003c\/strong\u003e A two-wire, single-screw or clip-mounted swap for a qualified technician. Cut power before service and confirm the switch is fully seated against its mounting surface for accurate sensing.\u003c\/p\u003e\u003cp\u003eRestore safe operation with the genuine Goodman B1370113 120°F limit switch — order today.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058078368115,"sku":"GOODMAN-10382","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-gdt045-3-b1370113","provider":"National HVAC Parts","version":"1.0","type":"link"}