{"product_id":"oem-goodman-150-f-primary-limit-switch-for-ams81405dxa-furnace-b1370198","title":"OEM Goodman 150°F Primary Limit Switch for AMS81405DXA Furnace — B1370198","description":"\u003ch2\u003eGoodman B1370198 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe B1370198 is a genuine OEM primary limit switch engineered for Goodman and Amana gas furnaces, including the \u003cstrong\u003eAMS81405DXA\u003c\/strong\u003e model. This safety-critical control monitors heat-exchanger and plenum temperature, opening the gas valve and burner circuit if the furnace overheats due to restricted airflow, a dirty filter, or a failed blower. A correctly rated limit switch protects the heat exchanger and prevents nuisance shutdowns.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 150°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003eType: Primary \/ high-limit thermal switch\u003c\/li\u003e\n\u003cli\u003eFit: Direct OEM replacement — no rewiring or drilling\u003c\/li\u003e\n\u003cli\u003eCompatible model: AMS81405DXA and related Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eEquipment: Gas furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur \u003cstrong\u003eOEM Goodman B1370198\u003c\/strong\u003e is calibrated to the exact factory trip point and mounting bracket, guaranteeing correct clearance and safe operation. Generic universal limits often carry a different set point or bracket footprint, which can cause premature tripping or improper seating. For a safety device, we recommend the OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Two mounting screws and two spade connectors. Always shut off power and gas before servicing. Typical replacement time is under 20 minutes for a comfortable DIYer; consult a licensed HVAC technician if you are unsure.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057732043123,"sku":"GOODMAN-7280","price":27.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-ams81405dxa-furnace-b1370198","provider":"National HVAC Parts","version":"1.0","type":"link"}