{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-amh81405dxaa-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for AMH81405DXAA — B1370155","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370155 Auxiliary Limit Switch\u003c\/strong\u003e is a genuine OEM safety control engineered for \u003cstrong\u003eAMH81405DXAA\u003c\/strong\u003e gas furnaces and compatible Goodman\/Amana models. This normally-closed thermal switch opens at approximately \u003cstrong\u003e120°F\u003c\/strong\u003e to protect the heat exchanger and blower compartment from unsafe overheating conditions, shutting down the burners if airflow is restricted or a blower fault occurs.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip temperature:\u003c\/strong\u003e 120°F (auto-reset)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Auxiliary \/ rollout high-limit safety\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact type:\u003c\/strong\u003e Normally closed (opens on rise)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman \u0026amp; Amana AMH81405DXAA and related 80% furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e B1370155\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine OEM B1370155 is factory-calibrated to the exact trip point your furnace's control board expects, ensuring proper safety cutout timing and full warranty compatibility. Aftermarket universal switches may carry a loose temperature tolerance or incorrect mounting bracket, risking nuisance shutdowns or an unsafe reset point. For a safety-critical component like a limit switch, OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e This is a two-wire, single-fastener replacement. Disconnect power at the furnace disconnect, remove the failed switch, transfer the wire leads (or bracket) to the new B1370155, and remount. Most homeowners with basic HVAC knowledge can complete this in under 15 minutes. Always verify power is off before servicing.\u003c\/p\u003e\u003cp\u003eOrder the authentic Goodman B1370155 today to restore safe, reliable furnace operation.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057655136627,"sku":"GOODMAN-6165","price":11.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-amh81405dxaa-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}