{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-gdt070-3a-b1370113","title":"OEM Goodman 120°F Auxiliary Limit Switch for GDT070-3A — B1370113","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370113 Auxiliary Limit Switch\u003c\/strong\u003e is a genuine OEM overheat-protection component engineered for the Goodman \u003cstrong\u003eGDT070-3A\u003c\/strong\u003e gas furnace and compatible models in the same platform. This normally-closed thermal switch monitors cabinet and blower-compartment temperatures and opens the control circuit at its rated \u003cstrong\u003e120°F\u003c\/strong\u003e trip point, shutting down the burners before a heat-exchanger or airflow fault can damage the appliance. It is a required safety device — a failed or missing auxiliary limit is one of the most common causes of nuisance lockouts and no-heat calls.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: B1370113\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 120°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003eType: Normally-closed thermal limit switch\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (OEM)\u003c\/li\u003e\n\u003cli\u003eApplication: GDT070-3A and compatible Goodman gas furnaces\u003c\/li\u003e\n\u003cli\u003eFunction: Auxiliary \/ blower-compartment overheat protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman B1370113\u003c\/strong\u003e is calibrated to Goodman's exact 120°F specification and mounting geometry, guaranteeing a plug-and-play fit and correct trip behavior. A quality universal-replacement limit switch can save a few dollars, but you must verify trip temperature and terminal orientation yourself. For safety-critical limit controls we recommend the OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1 of 5).\u003c\/strong\u003e Power off the furnace at the disconnect, unplug the two spade terminals, remove the mounting screws, and reverse for the new switch. Most homeowners complete the swap in under 15 minutes with a nut driver. Always confirm continuity at room temperature before reassembly.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058079449459,"sku":"GOODMAN-B1370113","price":14.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-gdt070-3a-b1370113","provider":"National HVAC Parts","version":"1.0","type":"link"}