{"product_id":"oem-goodman-auxiliary-auto-reset-limit-switch-gmp125-5-20269903","title":"OEM Goodman Auxiliary Auto-Reset Limit Switch GMP125-5 — 20269903","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20269903 Auxiliary Limit Switch\u003c\/strong\u003e is a genuine OEM auto-reset thermal safety for \u003cstrong\u003eGoodman GMP125-5\u003c\/strong\u003e gas furnaces. As a secondary\/auxiliary limit, it provides a backup overheat cutout beyond the primary high limit. Being \u003cstrong\u003eauto-reset\u003c\/strong\u003e, it opens the control circuit on an over-temperature event and automatically closes again once the sensed area cools to a safe range.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e 20269903\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Auxiliary limit switch, automatic reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GMP125-5 gas furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset:\u003c\/strong\u003e Automatic (self-resets after cooldown)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip point:\u003c\/strong\u003e Factory-set to furnace specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eAuxiliary limits are defined by their trip temperature, reset behavior, and mounting location. OEM 20269903 delivers the exact auto-reset calibration and bracket the GMP125-5 was engineered around. A generic switch with a different rating or a manual-reset design can change how the furnace recovers from a fault and may compromise the layered safety scheme. Stay OEM on all limit controls.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy\u003c\/strong\u003e — cut power and gas, remove the mounting screws, and move the two wire terminals to the new switch. No calibration needed.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eRepeated auxiliary-limit trips usually point to an airflow or heat-exchanger problem — diagnose before assuming the switch has failed.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058137874803,"sku":"GOODMAN-11914","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-auxiliary-auto-reset-limit-switch-gmp125-5-20269903","provider":"National HVAC Parts","version":"1.0","type":"link"}