{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-ams81155cxa-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for AMS81155CXA — B1370155","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370155\u003c\/strong\u003e is a genuine OEM auxiliary limit switch rated at \u003cstrong\u003e120°F\u003c\/strong\u003e, built for the \u003cstrong\u003eAMS81155CXA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This auto-reset safety device is typically mounted on the blower housing or near the return air path, monitoring for abnormal temperature rise that indicates restricted airflow or blower failure.\u003c\/p\u003e\u003cp\u003eWhen the auxiliary limit senses excess heat, it interrupts the control circuit to shut the furnace down, then automatically resets once temperatures return to normal. A failed switch can cause intermittent shutdowns or prevent the furnace from firing at all.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Temperature:\u003c\/strong\u003e 120°F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset Type:\u003c\/strong\u003e Automatic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Auxiliary high-temperature limit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman AMS81155CXA and compatible furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e B1370155\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e The genuine Goodman part matches the exact 120°F setpoint, mounting footprint, and terminal orientation of the original. Generic alternatives are more affordable and fit many furnaces, but calibration and bracket fit can differ. For dependable overheat protection, OEM is the safe choice.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall Difficulty:\u003c\/strong\u003e Easy (2\/5). Cut power at the disconnect, remove the two mounting screws, transfer the spade connectors, and secure the new switch in the same orientation. Only a nut driver is required.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057715659123,"sku":"GOODMAN-7187","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-ams81155cxa-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}