{"product_id":"oem-goodman-150-f-primary-limit-switch-for-dms81405dna-b1370198","title":"OEM Goodman 150°F Primary Limit Switch for DMS81405DNA — B1370198","description":"\u003ch2\u003eGoodman B1370198 Primary Limit Switch (150°F)\u003c\/h2\u003e\u003cp\u003eThe Goodman B1370198 is a factory-original primary high-limit switch engineered for the \u003cstrong\u003eDMS81405DNA\u003c\/strong\u003e gas furnace and other compatible Goodman\/Amana models. This safety control continuously monitors heat-exchanger and plenum temperature, opening the burner circuit if the furnace overheats due to restricted airflow, a dirty filter, or blower failure — protecting the heat exchanger and preventing hazardous operation.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: B1370198\u003c\/li\u003e\n\u003cli\u003eType: Snap-disc primary high-limit switch\u003c\/li\u003e\n\u003cli\u003eCutout temperature: 150°F (automatic reset)\u003c\/li\u003e\n\u003cli\u003eFits: Goodman DMS81405DNA furnace\u003c\/li\u003e\n\u003cli\u003eMounting: Screw-mount to heat-exchanger bulkhead\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman OEM\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 switch calibrated to the exact 150°F trip point specified for your furnace. Generic snap-discs may carry a similar rating but often use looser tolerances, which can cause nuisance trips or fail to protect at the correct threshold. Choosing OEM keeps your furnace within manufacturer safety specs and protects your warranty.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Turn off power and gas, disconnect the two spade terminals, remove two mounting screws, and swap in the new switch. Most homeowners complete this in under 15 minutes. If your limit is tripping repeatedly, also inspect the filter, blower, and ductwork for airflow restrictions before returning the unit to service.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058050974067,"sku":"GOODMAN-9635","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-150-f-primary-limit-switch-for-dms81405dna-b1370198","provider":"National HVAC Parts","version":"1.0","type":"link"}