{"product_id":"oem-goodman-manual-reset-limit-switch-ames920805cnaa-10123539","title":"OEM Goodman Manual Reset Limit Switch AMES920805CNAA — 10123539","description":"\u003ch2\u003eGoodman 10123539 Manual Reset Limit Switch\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003e10123539\u003c\/strong\u003e is a genuine OEM Goodman manual reset limit switch (rollout\/high-limit safety) built for the \u003cstrong\u003eAMES920805CNAA\u003c\/strong\u003e gas furnace. This safety device opens the ignition\/gas circuit when it detects abnormal heat or flame rollout in the burner compartment, protecting the heat exchanger and household from overheating. Because it is a manual reset device, it requires a deliberate button press to restore operation after a fault — a design that flags recurring problems rather than silently cycling.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 10123539\u003c\/li\u003e\n\u003cli\u003ePart Type: Manual Reset Limit \/ Rollout Switch\u003c\/li\u003e\n\u003cli\u003eReset: Manual (push-button)\u003c\/li\u003e\n\u003cli\u003eFunction: High-temperature \/ flame-rollout safety cutoff\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman \/ Amana\u003c\/li\u003e\n\u003cli\u003eCompatible Model: AMES920805CNAA (gas furnace)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eSafety limit switches must trip at the factory-calibrated temperature. Genuine OEM 10123539 units are matched to the AMES920805CNAA's heat exchanger and airflow design. Generic substitutes may carry an incorrect trip point, which can cause nuisance shutdowns or, worse, fail to protect the system. For a life-safety component, use OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5)\u003c\/strong\u003e — Disconnect furnace power, remove the two mounting screws, transfer the wire leads to the new switch, and remount. Confirm secure spade connections. A meter check for continuity is recommended after install.\u003c\/p\u003e\u003cp\u003eFits the AMES920805CNAA and related Goodman\/Amana models. Verify your original part number before ordering.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057594220915,"sku":"GOODMAN-4741","price":6.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-manual-reset-limit-switch-ames920805cnaa-10123539","provider":"National HVAC Parts","version":"1.0","type":"link"}