{"product_id":"oem-goodman-150-f-primary-limit-switch-for-ams81405dxaa-b1370198","title":"OEM Goodman 150°F Primary Limit Switch for AMS81405DXAA — B1370198","description":"\u003ch2\u003eGoodman B1370198 150°F Primary Limit Switch\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eB1370198\u003c\/strong\u003e is a genuine OEM primary high-limit switch for the Goodman\/Amana \u003cstrong\u003eAMS81405DXAA\u003c\/strong\u003e gas furnace and compatible models. Mounted on the heat-exchanger bulkhead, this 150°F auto-reset limit is the furnace's main overheat protection — it interrupts the gas valve if supply-air temperature exceeds safe limits, preventing heat-exchanger damage from restricted airflow.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 150°F (open on rise)\u003c\/li\u003e\n\u003cli\u003eReset type: Automatic reset\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally closed (N.C.)\u003c\/li\u003e\n\u003cli\u003eFunction: Primary heat-exchanger high limit\u003c\/li\u003e\n\u003cli\u003eFits: Goodman \u0026amp; Amana furnaces incl. AMS81405DXAA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur \u003cstrong\u003eOEM B1370198\u003c\/strong\u003e delivers the exact factory trip temperature, disc size, and mounting flange required for correct furnace operation and safety compliance. Generic limits with off-spec trip points can cause short-cycling or leave the heat exchanger unprotected. This is the safest, longest-lasting choice for your system.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5)\u003c\/strong\u003e — Requires removing the two spade connectors and mounting screws; note orientation so the sensing disc seats flush against the airstream. Frequent tripping typically points to airflow restriction (dirty filter, blocked coil, undersized ductwork) rather than the switch itself. Always de-energize before working.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057734467955,"sku":"GOODMAN-7287","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-ams81405dxaa-b1370198","provider":"National HVAC Parts","version":"1.0","type":"link"}