{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-adv80905cxa-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for ADV80905CXA — B1370155","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370155 Auxiliary Limit Switch\u003c\/strong\u003e is a genuine OEM 120°F overheat safety control for the \u003cstrong\u003eGoodman ADV80905CXA\u003c\/strong\u003e gas furnace and compatible models. Typically mounted on the blower deck or near the secondary heat exchanger, this auxiliary limit opens the control circuit if temperatures exceed its setpoint — protecting the furnace from restricted airflow, a failed blower, or a clogged filter.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B1370155\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Temperature:\u003c\/strong\u003e 120°F (auxiliary\/secondary limit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Limit Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment Type:\u003c\/strong\u003e Gas Furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e ADV80905CXA (and compatible ADV-series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Secondary overheat protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis \u003cstrong\u003egenuine Goodman OEM\u003c\/strong\u003e switch matches the precise 120°F setpoint and mounting footprint your furnace requires. Because it is a safety device, using a generic switch with an incorrect trip temperature can cause nuisance shutdowns or defeat overheat protection entirely. Always match the OEM rating.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eRating: Easy (2\/5).\u003c\/strong\u003e Unscrew the old switch, transfer the spade connectors, and mount the replacement in the same orientation. Cut power at the disconnect before servicing, and correct any airflow restriction that caused the trip.\u003c\/p\u003e\u003cp\u003eVerify model\/serial before ordering. Questions? info@nationalhvacparts.com.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057511481715,"sku":"GOODMAN-3439","price":11.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-adv80905cxa-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}