{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-gds80904bxa-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for GDS80904BXA — B1370155","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370155\u003c\/strong\u003e is a genuine OEM 120°F auxiliary limit switch for the \u003cstrong\u003eGDS80904BXA\u003c\/strong\u003e gas furnace. This secondary high-limit control monitors blower compartment and heat exchanger temperature, opening the circuit to shut off the burners if airflow is restricted — typically from a clogged filter, blocked return, or failing blower. It's a key overheat safeguard that prevents heat exchanger damage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 120°F (opens on temperature rise)\u003c\/li\u003e\n\u003cli\u003eType: auxiliary \/ secondary high-limit switch\u003c\/li\u003e\n\u003cli\u003eFunction: blower compartment overheat protection\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GDS80904BXA furnace\u003c\/li\u003e\n\u003cli\u003eOEM part number: B1370155\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman B1370155\u003c\/strong\u003e matches the precise 120°F set point, bracket geometry, and terminal layout of the original control. A generic replacement with a different trip point can cause nuisance shutdowns or, worse, fail to protect the furnace. For proper safety operation, choose OEM.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Disconnect furnace power, pull the wire terminals, remove the two mounting screws, and install the replacement in the same orientation. Roughly 15 minutes. Replace a dirty filter to prevent repeat trips.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058076959091,"sku":"GOODMAN-B1370155","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-gds80904bxa-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}