{"product_id":"l300f-nordyne-limit-switch-manual-626343r","title":"626343R Nordyne Manual-Reset Flame Rollout Limit Switch (L300F)","description":"\u003ch1\u003e626343R Nordyne Manual-Reset Flame Rollout Limit Switch (L300F)\u003c\/h1\u003e\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003e626343R is an OEM Nordyne manual-reset flame rollout limit switch, model L300F. Designed to safeguard gas furnaces against dangerous flame rollout, it trips at its preset temperature and must be manually reset after a genuine overheat event. This switch ensures that any combustion irregularity is investigated and cleared before the furnace can restart, enhancing system safety and reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart number\u003c\/td\u003e\n\u003ctd\u003e626343R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eL300F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eFlame rollout safety interlock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrip temperature\u003c\/td\u003e\n\u003ctd\u003e300 °F (L300F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReset type\u003c\/td\u003e\n\u003ctd\u003eManual-push reset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003eT-O-D36TX16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eElectrical connection\u003c\/td\u003e\n\u003ctd\u003eTwo 1\/4″ male quick-connect spades\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing material\u003c\/td\u003e\n\u003ctd\u003ePhenolic\/thermoplastic composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrice\u003c\/td\u003e\n\u003ctd\u003e$28.20 USD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eCross-Reference Part Numbers\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e626343\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e6263430\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e626373\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e6263730\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eNordyne and Nordyne-Miller gas furnaces equipped with an L300F flame rollout limit\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePrivate-label and OEM platforms built on Nordyne chassis requiring a manual-reset rollout sensor\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eApplications where the furnace data-plate specifies a 300 °F flame rollout interlock\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eAlways confirm the furnace’s data-plate designation and mounting orientation before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003eTechnician Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDe-energize all electrical power and shut off the gas supply; follow lockout\/tagout procedures.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRemove furnace access panels to expose the existing rollout limit switch, typically mounted near the burner assembly.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePhotograph or label the two quick-connect leads to preserve original wiring orientation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eDepress the mounting clips or remove the screws to release the old switch; pull off the spade terminals.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSnap the new 626343R into the bracket until it clicks, then push the spade connectors fully onto the terminals.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRestore power and gas, then initiate a heat call. The furnace should run normally until a genuine rollout condition trips the switch.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eTo reset after a true overheat event, wait for the switch to cool below its reset threshold, then press the reset button firmly until it latches before retesting.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eManual reset flame rollout limit switch, L300F. Size T-O-D36TX16.\u003c\/p\u003e\n\u003cp\u003eReplaces 626343, 6263430, 626373 \u0026amp; 6263730.\u003c\/p\u003e","brand":"Quinn","offers":[{"title":"Default Title","offer_id":13160219651,"sku":"626343R","price":28.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/products\/l300f-nordyne-limit-switch-manual-626343r-9.jpeg?v=1566073019","url":"https:\/\/hvacpartstore.com\/products\/l300f-nordyne-limit-switch-manual-626343r","provider":"HVACpartstore","version":"1.0","type":"link"}