{"product_id":"oem-goodman-120f-auxiliary-limit-switch-for-ams80904bna-b1370155","title":"OEM Goodman 120F Auxiliary Limit Switch for AMS80904BNA — B1370155","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370155 120°F Auxiliary Limit Switch\u003c\/strong\u003e is a genuine OEM auto-reset high-limit safety for \u003cstrong\u003eGoodman\/Amana AMS80904BNA\u003c\/strong\u003e gas furnaces. Typically mounted near the blower deck, it monitors cabinet temperature and interrupts the circuit if heat builds beyond safe limits — protecting against restricted airflow from a dirty filter, closed registers, or a failing blower. When it trips, the furnace shuts down heat until temperatures fall back into range.\u003c\/p\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 (opens on rise)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset type:\u003c\/strong\u003e Automatic reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Auxiliary \/ secondary high-limit safety\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman\/Amana AMS80904BNA and compatible furnace models\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eOEM vs. Generic:\u003c\/strong\u003e This OEM switch is factory-calibrated to open at exactly 120°F. Generic limits with loose tolerances may nuisance-trip or fail to protect the equipment. For an auxiliary safety on a heating appliance, OEM calibration matters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstall difficulty:\u003c\/strong\u003e Easy (2\/5). Disconnect power, remove the two spade connectors, unfasten the switch, and install the replacement in the same orientation. Basic hand tools; about 15 minutes. Address any airflow restriction that caused repeat trips.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057705435507,"sku":"GOODMAN-7059","price":11.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120f-auxiliary-limit-switch-for-ams80904bna-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}