{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-adv80703bxa-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for ADV80703BXA — B1370155","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370155 Auxiliary Limit Switch\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003e120°F\u003c\/strong\u003e high-limit safety control for the \u003cstrong\u003eADV80703BXA\u003c\/strong\u003e gas furnace and other compatible Goodman and Amana models. This auxiliary limit protects a secondary area of the furnace — typically the blower compartment or a specific downstream location — by opening the control circuit if temperatures climb past the safe threshold, most often due to restricted airflow from a dirty filter, blocked ducts, or a failing blower.\u003c\/p\u003e\u003cp\u003eThe switch trips at \u003cstrong\u003e120°F\u003c\/strong\u003e and is designed to reset automatically once temperatures return to normal, allowing the furnace to resume operation without a manual reset while still guarding against overheat conditions.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Auxiliary \/ high-limit safety switch\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 120°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003eOEM part number: B1370155\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (also fits select Amana furnaces)\u003c\/li\u003e\n\u003cli\u003ePrimary application: ADV80703BXA gas furnace\u003c\/li\u003e\n\u003cli\u003eContact configuration: Normally closed, opens on over-temperature\u003c\/li\u003e\n\u003cli\u003eFitment: Direct OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe 120°F setpoint on this auxiliary limit is specific to the furnace's design. Installing a switch with a different trip point can lead to nuisance shutdowns or inadequate overheat protection. The OEM B1370155 ensures the correct trip temperature and a direct-fit electrical and mechanical connection.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to moderate.\u003c\/strong\u003e After shutting off power, disconnect the two spade terminals, remove the mounting screws, and install the replacement in the same orientation. If the switch trips frequently, first check the air filter, ductwork, and blower operation before assuming the switch is faulty. Professional diagnosis is recommended for recurring trips.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057510269299,"sku":"GOODMAN-3404","price":11.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-adv80703bxa-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}