{"product_id":"oem-goodman-limit-switch-for-gmp125-4-furnace-10728343","title":"OEM Goodman Limit Switch for GMP125-4 Furnace — 10728343","description":"\u003ch2\u003eGoodman 10728343 Furnace Limit Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman 10728343 limit switch is a factory-specified safety control for GMP125-4 gas furnaces. Mounted on the heat exchanger or burner assembly, it senses supply-air or heat-exchanger temperature and interrupts the burner circuit if the furnace exceeds its safe operating range. This prevents heat-exchanger cracking and downstream damage caused by restricted airflow or blower failure, making it one of the most important safety devices in the furnace.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: High-limit temperature switch\u003c\/li\u003e\n\u003cli\u003eCompatible model: Goodman GMP125-4 furnace\u003c\/li\u003e\n\u003cli\u003eFunction: Heat-exchanger overheat protection\u003c\/li\u003e\n\u003cli\u003eTerminals: Quick-connect spade terminals\u003c\/li\u003e\n\u003cli\u003eFit: Direct OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eGenuine Goodman OEM 10728343 arrives pre-calibrated to the correct trip and reset temperatures for the GMP125-4. Generic replacements often use approximate ratings that lead to short-cycling or delayed cutoff. Choosing OEM guarantees the furnace's built-in safety response matches Goodman's original engineering specification.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Disconnect furnace power, remove the two spade terminals, unscrew the switch, and reverse the process with the new part. No special tools required. Verify airflow and filter condition to avoid repeat trips.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058137710963,"sku":"GOODMAN-11906","price":29.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-limit-switch-for-gmp125-4-furnace-10728343","provider":"National HVAC Parts","version":"1.0","type":"link"}