{"product_id":"oem-goodman-300-f-rollout-limit-switch-for-dms81405dna-b1370145","title":"OEM Goodman 300°F Rollout Limit Switch for DMS81405DNA — B1370145","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1370145 flame rollout switch\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003e300°F manual-reset safety limit\u003c\/strong\u003e for \u003cstrong\u003eDMS81405DNA\u003c\/strong\u003e furnaces. Mounted on the burner box, it opens the ignition circuit if flame rolls out of the heat exchanger — a critical safety response to a blocked flue, cracked heat exchanger, or failing inducer. A tripped or aged rollout switch will lock out the furnace and must be replaced with the correct temperature rating.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 300°F (open on rise)\u003c\/li\u003e\n\u003cli\u003eReset: Manual (push-button)\u003c\/li\u003e\n\u003cli\u003eType: Normally-closed safety limit switch\u003c\/li\u003e\n\u003cli\u003eTerminals: 1\/4\" quick-connect\u003c\/li\u003e\n\u003cli\u003eFitment: Goodman DMS81405DNA and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B1370145\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause this is a \u003cstrong\u003elife-safety device\u003c\/strong\u003e, the OEM Goodman switch guarantees the exact 300°F calibration and mounting footprint. Generic switches may carry different trip points or reset behavior, defeating the protection Goodman engineered. We recommend OEM only for rollout switches.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (10–15 min).\u003c\/strong\u003e Cut power, unplug the two spade terminals, remove the mounting screws, and swap in the new switch. \u003cem\u003eImportant:\u003c\/em\u003e if this switch tripped, diagnose and correct the root cause (flue blockage \/ heat exchanger) before returning the unit to service.\u003c\/p\u003e\u003cp\u003eGenuine OEM. Restores factory 300°F rollout protection on the DMS81405DNA.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058050941299,"sku":"GOODMAN-9633","price":4.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300-f-rollout-limit-switch-for-dms81405dna-b1370145","provider":"National HVAC Parts","version":"1.0","type":"link"}