{"product_id":"oem-goodman-300-f-rollout-limit-switch-for-gdt045-3b-b1370145","title":"OEM Goodman 300°F Rollout Limit Switch for GDT045-3B — B1370145","description":"\u003ch2\u003eGoodman B1370145 300°F Flame Rollout Limit Switch\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB1370145\u003c\/strong\u003e is a genuine OEM manual-reset flame rollout limit switch rated to open at \u003cstrong\u003e300°F\u003c\/strong\u003e, designed for \u003cstrong\u003eGDT045-3B\u003c\/strong\u003e gas furnaces. This safety control monitors the burner box for flame rollout and de-energizes the gas valve if flames escape the combustion chamber, protecting the furnace and home from overheating. A tripped or failed switch blocks ignition and is a critical safety component that must be replaced with an exactly rated part.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOpen temperature: 300°F\u003c\/li\u003e\n\u003cli\u003eReset type: Manual push-button\u003c\/li\u003e\n\u003cli\u003ePart number: B1370145\u003c\/li\u003e\n\u003cli\u003eCompatible model: GDT045-3B furnace\u003c\/li\u003e\n\u003cli\u003eType: Flame rollout safety limit switch\u003c\/li\u003e\n\u003cli\u003eFunction: Normally closed, opens on over-temperature\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eAs a life-safety device, the trip temperature and reset behavior must match the furnace design exactly. Genuine Goodman B1370145 switches are calibrated to the correct 300°F set point. A mis-rated generic switch can defeat this protective function — OEM is required, not optional.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Usually two spade terminals and a single mounting screw or clip. Shut off power and gas, note the wiring, and swap. If the switch continues to trip, diagnose the underlying cause — blocked flue, dirty burners, or a cracked heat exchanger — before restoring service.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFits Goodman GDT045-3B. Verify the printed 300°F rating before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058078990707,"sku":"GOODMAN-10404","price":4.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300-f-rollout-limit-switch-for-gdt045-3b-b1370145","provider":"National HVAC Parts","version":"1.0","type":"link"}