{"product_id":"oem-goodman-high-limit-switch-for-gmp125-5-furnace-10728343","title":"OEM Goodman High-Limit Switch for GMP125-5 Furnace — 10728343","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 10728343 Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control for \u003cstrong\u003eGoodman GMP125-5\u003c\/strong\u003e gas furnaces. Mounted on the heat exchanger\/burner assembly, it senses supply-air temperature and cuts power to the gas valve if the furnace overheats — a required safety device that prevents heat-exchanger damage and unsafe operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part #:\u003c\/strong\u003e 10728343\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e High-limit thermal safety switch\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\u003eTrip point:\u003c\/strong\u003e Factory-calibrated to the furnace spec (do not substitute a different temperature rating)\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\u003eLimit switches are matched to a specific cut-out temperature and mounting bracket. OEM 10728343 carries the exact factory trip setting and bolt pattern, so the furnace's safety envelope is preserved. Installing a generic switch with the wrong temperature rating can cause nuisance lockouts or, worse, defeat overheat protection. Always match OEM on safety controls.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate\u003c\/strong\u003e — turn off furnace power and gas, remove two mounting screws, and transfer the spade terminals. Verify orientation matches the original.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFrequent limit trips can indicate low airflow (dirty filter\/blocked ducts) — investigate the root cause, not just the switch.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058137842035,"sku":"GOODMAN-11913","price":24.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-high-limit-switch-for-gmp125-5-furnace-10728343","provider":"National HVAC Parts","version":"1.0","type":"link"}