{"product_id":"oem-goodman-manual-reset-limit-switch-for-wfd18090s4bxcc-10123529","title":"OEM Goodman Manual Reset Limit Switch for WFD18090S4BXCC — 10123529","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 10123529 Manual Reset Limit Switch\u003c\/strong\u003e is a genuine OEM high-temperature safety cutout for the \u003cstrong\u003eWFD18090S4BXCC\u003c\/strong\u003e furnace. It monitors heat-exchanger and plenum temperature and shuts off the gas valve and burners if the furnace overheats — protecting against restricted airflow, a failed blower, or a cracked heat exchanger. Unlike an auto-reset limit, this manual-reset version stays open until an operator presses the red button, so a repeat trip demands attention rather than silently cycling.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: Manual reset high-limit safety switch\u003c\/li\u003e\n\u003cli\u003eOEM part number: 10123529\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman\u003c\/li\u003e\n\u003cli\u003eFunction: Overheat \/ rollout thermal cutout\u003c\/li\u003e\n\u003cli\u003eReset: Manual push-button\u003c\/li\u003e\n\u003cli\u003eFits model: WFD18090S4BXCC\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003egenuine Goodman OEM 10123529\u003c\/strong\u003e is calibrated to the exact trip and reset temperatures engineered for this furnace. Generic limit switches with a different set point can nuisance-trip on normal high-fire cycles or, worse, fail to open soon enough during a real overheat event. For a safety-critical component, OEM calibration is not optional.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5).\u003c\/strong\u003e Shut off gas and electrical power, note wire orientation, remove the two mounting screws, transfer the spade connectors, and secure the new switch. Fifteen to twenty minutes for most DIYers. \u003cstrong\u003eImportant:\u003c\/strong\u003e a tripped limit switch is a symptom — always diagnose the underlying airflow or blower problem before replacing.\u003c\/p\u003e\u003cp\u003eVerify your model number before ordering. Questions? Email info@nationalhvacparts.com.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058216714611,"sku":"GOODMAN-13871","price":34.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-manual-reset-limit-switch-for-wfd18090s4bxcc-10123529","provider":"National HVAC Parts","version":"1.0","type":"link"}