{"product_id":"oem-goodman-230-f-primary-limit-switch-for-gmt140-5d-b1370192","title":"OEM Goodman 230°F Primary Limit Switch for GMT140-5D — B1370192","description":"\u003ch2\u003eGoodman B1370192 230°F Primary High-Limit Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB1370192\u003c\/strong\u003e is a genuine OEM primary high-limit switch built for the \u003cstrong\u003eGMT140-5D\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana equipment. Positioned on the heat-exchanger bulkhead, this 230°F auto-reset control is the furnace's main overheat protector: it de-energizes the gas valve and burners if supply-air temperature climbs too high due to restricted airflow, a dirty filter, or a failing blower. A stuck-open primary limit is a frequent cause of no-heat and lockout faults.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 230°F (opens on rise)\u003c\/li\u003e\n\u003cli\u003eReset type: Automatic reset (closes on cool-down)\u003c\/li\u003e\n\u003cli\u003eCircuit: Normally closed (N.C.)\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4\" quick-connect spade terminals\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370192\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMT140-5D and select GMT\/GMP furnace models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eGoodman OEM\u003c\/strong\u003e primary limit is factory-calibrated to the precise 230°F cutout your furnace's design airflow demands. Universal high-limit switches with adjustable or approximate setpoints can allow dangerous overheating or cause frustrating short cycling. For the main safety control, we strongly recommend the exact OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Kill power, disconnect the two spade wires, remove the mounting screws, and fit the replacement in the same orientation. Expect 15 minutes or less. Always resolve airflow restrictions (filters, coils, blower) so the new limit isn't repeatedly tripped.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058164744563,"sku":"GOODMAN-12497","price":17.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-230-f-primary-limit-switch-for-gmt140-5d-b1370192","provider":"National HVAC Parts","version":"1.0","type":"link"}