{"product_id":"oem-goodman-auxiliary-auto-reset-limit-switch-for-amv80905cxba-20269903","title":"OEM Goodman Auxiliary Auto-Reset Limit Switch for AMV80905CXBA — 20269903","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20269903 Auxiliary Limit Auto-Reset Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control for the \u003cstrong\u003eAMV80905CXBA\u003c\/strong\u003e gas furnace. This thermally activated switch monitors temperature within the furnace cabinet and opens the circuit to shut off the burners if the unit overheats — protecting the heat exchanger and blower from damage. As an auto-reset type, it re-closes once temperatures return to a safe range. A failed or nuisance-tripping limit switch commonly causes short cycling or a furnace that won't fire, and replacing it with the correct OEM control restores safe, reliable operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 20269903\u003c\/li\u003e\n\u003cli\u003eType: Auxiliary High-Limit Switch\u003c\/li\u003e\n\u003cli\u003eReset: Automatic (auto-reset)\u003c\/li\u003e\n\u003cli\u003eCategory: Furnace Safety Switch\u003c\/li\u003e\n\u003cli\u003eCompatible Model: AMV80905CXBA (Goodman\/Amana 80% gas furnace)\u003c\/li\u003e\n\u003cli\u003eFunction: Overheat protection \/ burner cutout\u003c\/li\u003e\n\u003cli\u003eFit: Direct OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eLimit switches are calibrated to a specific open\/close temperature set point matched to the furnace design. Genuine Goodman 20269903 switches carry the correct trip rating, while generic substitutes may open at the wrong temperature — leading to nuisance trips or, worse, inadequate protection. For a safety-critical control, OEM is the right choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate (2\/5).\u003c\/strong\u003e Disconnect power at the furnace, remove the two mounting screws, transfer the wire terminals, and secure the new switch. Confirm proper seating against the mounting surface for accurate sensing. Typically a 10–15 minute repair.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057809572211,"sku":"GOODMAN-7649","price":29.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-auxiliary-auto-reset-limit-switch-for-amv80905cxba-20269903","provider":"National HVAC Parts","version":"1.0","type":"link"}