{"product_id":"oem-goodman-auxiliary-limit-auto-reset-switch-for-gmv80704bxa-20269903","title":"OEM Goodman Auxiliary Limit Auto-Reset Switch for GMV80704BXA — 20269903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20269903 Auxiliary Limit Auto-Reset Switch\u003c\/strong\u003e is a genuine OEM safety control for the \u003cstrong\u003eGMV80704BXA\u003c\/strong\u003e variable-speed gas furnace. This thermal limit switch monitors temperature in the blower or burner compartment and opens the circuit if the furnace overheats, shutting down the burners to prevent heat-exchanger damage or fire. Because it is an \u003cstrong\u003eauto-reset\u003c\/strong\u003e design, it re-closes automatically once temperatures return to a safe range — no manual reset required. A tripping or failed limit switch is a common cause of short-cycling and no-heat calls.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 20269903\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Auxiliary high-limit switch, auto-reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Automatic (SPST, opens on temperature rise)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GMV80704BXA and compatible GMV80 series furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Overheat safety shutoff\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003egenuine Goodman OEM\u003c\/strong\u003e switch is factory-calibrated to the precise trip temperature specified for this furnace. Generic universal limits may open at the wrong setpoint, causing either nuisance trips or a failure to protect the heat exchanger. OEM ensures correct calibration and terminal fit.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5).\u003c\/strong\u003e Requires removing two mounting screws and transferring two wire connectors. Shut off gas and 120V power at the disconnect before servicing. Basic multimeter skills recommended to confirm the old switch is faulty.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058168447347,"sku":"GOODMAN-12616","price":29.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-auxiliary-limit-auto-reset-switch-for-gmv80704bxa-20269903","provider":"National HVAC Parts","version":"1.0","type":"link"}