{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-amh80903bnac-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for AMH80903BNAC — B1370155","description":"\u003ch2\u003eGoodman B1370155 Auxiliary Limit Switch (120°F)\u003c\/h2\u003e\u003cp\u003eThe genuine OEM Goodman B1370155 is a normally-closed auxiliary high-limit switch engineered for the \u003cstrong\u003eGoodman\/Amana AMH80903BNAC\u003c\/strong\u003e gas furnace and other compatible 80% AFUE models. This safety control monitors temperature in the blower compartment and opens the burner circuit if airflow is restricted or heat rises above the 120°F trip point, protecting the heat exchanger and cabinet from overheating.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 120°F (open on rise)\u003c\/li\u003e\n\u003cli\u003eType: Auxiliary \/ secondary limit switch\u003c\/li\u003e\n\u003cli\u003eContact configuration: Normally closed, automatic reset\u003c\/li\u003e\n\u003cli\u003eCompatible model: AMH80903BNAC and related 80% furnaces\u003c\/li\u003e\n\u003cli\u003eGenuine Goodman\/Amana OEM component\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine OEM B1370155 is calibrated to the exact 120°F set point your furnace's control board and manufacturer specs require. Generic replacements often use looser calibration tolerances that can nuisance-trip or fail to protect. Choosing OEM preserves warranty compliance and reliable safety operation.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Replacement is a two-wire, single-screw job for anyone comfortable working inside a de-energized furnace. Shut off power and gas, note wire positions, swap the switch, and restore power. If you are unsure, have a licensed HVAC technician perform the work — this is a safety-critical part.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057629446515,"sku":"GOODMAN-5720","price":11.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-amh80903bnac-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}