{"product_id":"oem-goodman-manual-reset-limit-switch-for-gch90904cxaa-10123519","title":"OEM Goodman Manual Reset Limit Switch for GCH90904CXAA — 10123519","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 10123519 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM high-temperature safety cutoff for the \u003cstrong\u003eGCH90904CXAA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This normally-closed switch opens the ignition circuit if it detects excessive heat or a flame rollout condition, shutting the burners down to prevent overheating, heat-exchanger damage, and fire hazards. Because it is \u003cstrong\u003emanual reset\u003c\/strong\u003e, it must be pressed to reset after a trip — signaling the technician to investigate the underlying cause.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 10123519\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Manual reset limit \/ rollout safety switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Normally closed (opens on over-temperature)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GCH90904CXAA and related furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Manual push-button reset\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 10123519\u003c\/strong\u003e is calibrated to the exact trip temperature specified for your furnace's heat exchanger and burner box. Generic switches with the wrong trip point either nuisance-trip during normal operation or fail to protect the unit. Safety components should always be OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3 of 5).\u003c\/strong\u003e Shut off gas and power first. Note wire positions, disconnect the terminals, remove the mounting screws, and install the replacement in the same orientation. \u003cstrong\u003eImportant:\u003c\/strong\u003e a tripped limit switch indicates a real problem — restricted airflow, a dirty filter, a failed blower, or flame rollout. Diagnose and correct the root cause before returning the furnace to service.\u003c\/p\u003e\u003cp\u003eGenuine Goodman safety part. Contact info@nationalhvacparts.com to confirm the correct switch for your serial number.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058054185331,"sku":"GOODMAN-9727","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-manual-reset-limit-switch-for-gch90904cxaa-10123519","provider":"National HVAC Parts","version":"1.0","type":"link"}