{"product_id":"oem-goodman-300f-primary-limit-switch-for-gmth090-5-furnace-b1370195","title":"OEM Goodman 300F Primary Limit Switch for GMTH090-5 Furnace — B1370195","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370195 Primary Limit Switch\u003c\/strong\u003e is a genuine OEM high-limit safety control engineered for the \u003cstrong\u003eGoodman GMTH090-5\u003c\/strong\u003e gas furnace and compatible GMTH-series models. This normally-closed thermal cutout monitors heat-exchanger and plenum temperature, opening the circuit to shut off the gas valve and burners if the furnace overheats — protecting your equipment and home from unsafe operating conditions.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip point:\u003c\/strong\u003e 300°F (opens on temperature rise)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Primary high-limit thermal switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAction:\u003c\/strong\u003e Normally closed (SPST)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit:\u003c\/strong\u003e Goodman GMTH090-5 and compatible furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e B1370195\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur \u003cstrong\u003egenuine OEM B1370195\u003c\/strong\u003e is manufactured to Goodman's exact trip temperature and bracket geometry, guaranteeing correct safety response and a bolt-in fit. Generic limit switches often trip at the wrong temperature, causing nuisance lockouts or failing to protect the furnace. For a safety-critical component, OEM is the smart choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5)\u003c\/strong\u003e — Two mounting screws and two spade terminals. Always shut off power and gas before servicing. If you are not comfortable working near the burner assembly, hire a licensed HVAC technician.\u003c\/p\u003e\u003cp\u003eRestore your GMTH090-5 furnace to safe, reliable operation with the correct factory limit switch.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058166776179,"sku":"GOODMAN-B1370195","price":10.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300f-primary-limit-switch-for-gmth090-5-furnace-b1370195","provider":"National HVAC Parts","version":"1.0","type":"link"}