{"product_id":"oem-goodman-amana-120-f-auxiliary-limit-switch-for-ams80905cnaa-b1370155","title":"OEM Goodman\/Amana 120°F Auxiliary Limit Switch for AMS80905CNAA — B1370155","description":"\u003ch2\u003eGoodman B1370155 Auxiliary Limit Switch (120°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman B1370155 is a genuine OEM \u003cstrong\u003e120°F auxiliary limit switch\u003c\/strong\u003e for the Amana\/Goodman \u003cstrong\u003eAMS80905CNAA\u003c\/strong\u003e 80% AFUE gas furnace. Typically mounted in the blower compartment, this secondary safety opens the control circuit if temperatures climb too high due to restricted airflow — a dirty filter, blocked return, failed blower, or closed registers. It backs up the primary high limit to protect the heat exchanger from overheating.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: B1370155\u003c\/li\u003e\n\u003cli\u003eTrip temperature: 120°F\u003c\/li\u003e\n\u003cli\u003eReset: Automatic (closes on cooldown)\u003c\/li\u003e\n\u003cli\u003eType: Auxiliary \/ secondary high-limit switch\u003c\/li\u003e\n\u003cli\u003eFits: AMS80905CNAA and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis \u003cstrong\u003egenuine OEM\u003c\/strong\u003e switch is set to the precise 120°F trip point and mounting footprint specified for this furnace. As a safety limit, the temperature calibration matters: a generic substitute with a different set point can cause repeated nuisance shutdowns or fail to protect the unit. Choose the OEM part for correct, code-compliant operation.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Turn off power, disconnect the two spade terminals, remove the mounting screws, and fit the replacement in the identical location and orientation. If the limit has been tripping, correct the airflow restriction (replace the filter, clear the return, verify blower operation) before restoring service. Cycle the furnace fully to confirm normal operation.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eCompatible with Amana and Goodman furnaces. Verify your model and part number before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057708908915,"sku":"GOODMAN-7109","price":11.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-amana-120-f-auxiliary-limit-switch-for-ams80905cnaa-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}