{"product_id":"oem-goodman-120-f-auxiliary-limit-switch-for-amh80904bxaa-b1370155","title":"OEM Goodman 120°F Auxiliary Limit Switch for AMH80904BXAA — B1370155","description":"\u003cp\u003eThe genuine OEM Goodman \u003cstrong\u003eB1370155 Auxiliary Limit Switch\u003c\/strong\u003e is a critical safety control engineered specifically for the \u003cstrong\u003eAMH80904BXAA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This normally-closed thermal switch opens at a 120°F trip point to protect against unsafe heat buildup, shutting down the burner circuit before dangerous temperatures are reached. A failed auxiliary limit is a common cause of intermittent no-heat calls and short cycling.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 120°F cutout (auto-reset)\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally-closed (N.C.) thermal switch\u003c\/li\u003e\n\u003cli\u003eFunction: Auxiliary high-limit safety control\u003c\/li\u003e\n\u003cli\u003eFits: Goodman\/Amana AMH80904BXAA and related 80% furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370155\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a factory-original Goodman component with the exact bracket geometry, trip calibration, and terminal spacing your furnace's wiring harness expects. Generic aftermarket limits often ship with a mismatched cutout temperature or bracket, forcing rework and risking nuisance trips. Choose OEM for guaranteed calibration and a clean, drop-in fit.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eRated \u003cstrong\u003eEasy\u003c\/strong\u003e for a competent DIYer. Shut off power and gas, remove the two mounting screws, disconnect the two spade terminals, and reverse to install — typically a 10–15 minute repair. Always verify the part against your unit's parts diagram and test furnace operation after replacement. If you are uncomfortable working near the burner assembly, consult a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057633018227,"sku":"GOODMAN-5810","price":11.96,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-120-f-auxiliary-limit-switch-for-amh80904bxaa-b1370155","provider":"National HVAC Parts","version":"1.0","type":"link"}