{"product_id":"oem-goodman-150-f-primary-limit-switch-for-amh81405dxaa-b1370198","title":"OEM Goodman 150°F Primary Limit Switch for AMH81405DXAA — B1370198","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370198 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control for \u003cstrong\u003eAMH81405DXAA\u003c\/strong\u003e gas furnaces and compatible Goodman\/Amana equipment. Mounted on the heat-exchanger blower deck, this switch monitors supply-air temperature and opens at roughly \u003cstrong\u003e150°F\u003c\/strong\u003e to de-energize the gas valve when the furnace overheats due to a dirty filter, closed dampers, or blower failure.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip temperature:\u003c\/strong\u003e 150°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Primary high-limit safety cutout\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact type:\u003c\/strong\u003e Normally closed (opens on temperature rise)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman \u0026amp; Amana AMH81405DXAA and related 80% furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e B1370198\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eGenuine B1370198 switches ship with the correct 150°F calibration and factory mounting flange that seats precisely against the blower housing for accurate temperature sensing. Generic replacements often sense temperature inaccurately or use the wrong bracket, causing premature lockouts or delayed safety response. Because this component directly controls the gas valve, we recommend the authentic OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Kill power at the furnace disconnect, disconnect the two spade terminals, remove the mounting screws, and install the new B1370198 in the same orientation. Reconnect the leads and restore power. Typical replacement takes 10–15 minutes with a nut driver. Confirm the switch resets and the furnace completes a full heat cycle after service.\u003c\/p\u003e\u003cp\u003eGet your furnace heating safely again with the genuine Goodman B1370198.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057655169395,"sku":"GOODMAN-6166","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-amh81405dxaa-b1370198","provider":"National HVAC Parts","version":"1.0","type":"link"}