{"product_id":"oem-goodman-150-f-primary-limit-switch-for-gmt070-3b-b1370198","title":"OEM Goodman 150°F Primary Limit Switch for GMT070-3B — B1370198","description":"\u003ch2\u003eGoodman B1370198 Primary High-Limit Switch — 150°F\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eB1370198\u003c\/strong\u003e is a genuine Goodman \u003cstrong\u003e150°F primary limit switch\u003c\/strong\u003e for the \u003cstrong\u003eGMT070-3B\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. Mounted on the heat exchanger or blower deck, this primary high-limit control opens the gas valve circuit when supply air exceeds the safe threshold — typically caused by restricted airflow from a clogged filter, closed registers, or a weak blower. It is the furnace's front-line protection against heat exchanger overheating.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 150°F\u003c\/li\u003e\n\u003cli\u003eType: Primary high-limit safety switch\u003c\/li\u003e\n\u003cli\u003eConfiguration: Normally closed, opens on overtemp with auto reset\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMT070-3B and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370198\u003c\/li\u003e\n\u003cli\u003eEquipment: Gas furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM B1370198\u003c\/strong\u003e is factory-set to 150°F with the correct probe length and mounting flange for the GMT070-3B cabinet. Generic limits with mismatched set points or probe depth can misread cabinet temperature and either short-cycle the furnace or allow unsafe overheating. OEM is the safe choice for a primary limit.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5)\u003c\/strong\u003e — Shut off power, note the wire routing, remove the two mounting screws, transfer the terminals, and reinstall. Roughly 15 minutes. Address the underlying airflow restriction before assuming the switch itself failed.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058157601139,"sku":"GOODMAN-12313","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-gmt070-3b-b1370198","provider":"National HVAC Parts","version":"1.0","type":"link"}