{"product_id":"oem-goodman-300-f-rollout-limit-switch-for-gmnt100-4-b1370145","title":"OEM Goodman 300°F Rollout Limit Switch for GMNT100-4 — B1370145","description":"\u003ch2\u003eGoodman B1370145 Flame Rollout Switch — 300°F\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eB1370145\u003c\/strong\u003e is a genuine OEM 300°F flame rollout limit switch for the Goodman \u003cstrong\u003eGMNT100-4\u003c\/strong\u003e gas furnace. This is a safety-critical component: it monitors the burner area for flame rollout caused by a blocked flue, cracked heat exchanger, or restricted combustion air, and shuts down the furnace before an unsafe condition develops. A tripped or failed rollout switch is a common cause of a furnace that lights briefly then locks out on \"no heat.\"\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTrip temperature: 300°F\u003c\/li\u003e\n\u003cli\u003eReset: Manual reset button\u003c\/li\u003e\n\u003cli\u003eFunction: Flame rollout safety limit\u003c\/li\u003e\n\u003cli\u003eCompatible model: Goodman GMNT100-4\u003c\/li\u003e\n\u003cli\u003eOEM part number: B1370145\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (genuine OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause this is a safety device, we strongly recommend the \u003cstrong\u003egenuine OEM B1370145\u003c\/strong\u003e — it is calibrated to the exact 300°F trip point the furnace control expects. Generic 300°F switches exist but should match trip temperature, mounting, and terminal style precisely; never substitute a different temperature rating on a safety limit.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy\u003c\/h3\u003e\u003cp\u003eA quick two-wire, single-fastener swap. Shut off power and gas, unplug the two terminals, remove the mounting screw, and install the replacement. \u003cstrong\u003eImportant:\u003c\/strong\u003e if a rollout switch has tripped, diagnose and correct the root cause (flue blockage, heat exchanger, combustion air) before returning the furnace to service.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eFits Goodman GMNT100-4. In stock and ready to ship.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058130895219,"sku":"GOODMAN-11721","price":4.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-300-f-rollout-limit-switch-for-gmnt100-4-b1370145","provider":"National HVAC Parts","version":"1.0","type":"link"}