{"product_id":"oem-goodman-150f-primary-limit-switch-for-gmnt070-3b-b1370198","title":"OEM Goodman 150F Primary Limit Switch for GMNT070-3B — B1370198","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1370198 Primary Limit Switch\u003c\/strong\u003e is the genuine OEM high-temperature safety limit for the \u003cstrong\u003eGMNT070-3B\u003c\/strong\u003e gas furnace. Positioned over the heat exchanger, this \u003cstrong\u003e150°F\u003c\/strong\u003e auto-reset switch is the furnace's main overheat protection: if supply-air temperature climbs too high because of poor airflow, it shuts off the gas valve to prevent heat-exchanger damage while allowing the blower to keep cooling the cabinet.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip temperature:\u003c\/strong\u003e 150°F (open on rise)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReset type:\u003c\/strong\u003e Automatic reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Primary high-limit safety control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM part number:\u003c\/strong\u003e B1370198\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary fit:\u003c\/strong\u003e Goodman GMNT070-3B furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTerminals:\u003c\/strong\u003e 1\/4\" quick-connect spade\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a \u003cstrong\u003egenuine Goodman OEM\u003c\/strong\u003e limit set to the precise 150°F factory value. The primary limit is the most important thermal safety in the furnace, and generic parts with drifting setpoints can cause nuisance trips or leave the heat exchanger unprotected. We strongly recommend OEM for this position.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Disconnect power, pull the two spade connectors, remove the two screws securing the switch to the heat-exchanger panel, and mount the new one. About 10 minutes with basic hand tools. Recurring trips usually point to airflow problems — replace the filter and check the blower first.\u003c\/p\u003e\u003cp\u003eGenuine Goodman reliability with fast, dependable shipping. Confirm your model number before ordering.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058128896371,"sku":"GOODMAN-11657","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150f-primary-limit-switch-for-gmnt070-3b-b1370198","provider":"National HVAC Parts","version":"1.0","type":"link"}