{"product_id":"3f01-140-copeland-comfort-control-white-rodgers-f140-20f-fan-switch","title":"3F01-140 Copeland Comfort Control (White Rodgers) F140-20F Fan Switch","description":"\u003ch1\u003e3F01-140 Copeland Comfort Control (White Rodgers) F140-20F Fan Switch\u003c\/h1\u003e\n\u003cstyle\u003e\na {\n    text-decoration: none;\n    color: #464feb;\n}\ntr th, tr td {\n    border: 1px solid #e6e6e6;\n}\ntr th {\n    background-color: #f5f5f5;\n}\n\u003c\/style\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe \u003cstrong\u003e3F01-140 Snap Disc Fan Switch (White-Rodgers \/ Copeland Comfort Control)\u003c\/strong\u003e is an automatic reset temperature control designed to manage blower fan operation in furnaces, air handlers, and HVAC equipment. Featuring a \u003cstrong\u003e140°F fixed cut-in temperature\u003c\/strong\u003e and a \u003cstrong\u003e20°F differential\u003c\/strong\u003e, this \u003cstrong\u003eclose-on-rise\u003c\/strong\u003e switch automatically activates the blower when operating temperatures are reached and shuts the fan off as the system cools, helping improve comfort, efficiency, and equipment performance.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCross-Reference\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3F01-140\u003c\/li\u003e\n\u003cli\u003e3F01140\u003c\/li\u003e\n\u003cli\u003eF140-20F\u003c\/li\u003e\n\u003cli\u003eWhite-Rodgers 3F01-140\u003c\/li\u003e\n\u003cli\u003eCopeland Comfort Control 3F01-140\u003c\/li\u003e\n\u003cli\u003e60T12 Series Fan Switch\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eDirect OEM\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhite-Rodgers 3F01-140\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCompatible Brands\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhite-Rodgers\u003c\/li\u003e\n\u003cli\u003eEmerson\u003c\/li\u003e\n\u003cli\u003eCopeland\u003c\/li\u003e\n\u003cli\u003eNordyne\u003c\/li\u003e\n\u003cli\u003eIntertherm\u003c\/li\u003e\n\u003cli\u003eMiller\u003c\/li\u003e\n\u003cli\u003eColeman\u003c\/li\u003e\n\u003cli\u003eYork\u003c\/li\u003e\n\u003cli\u003eUniversal HVAC Applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eUsed in heating and HVAC equipment to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eControl blower fan operation\u003c\/li\u003e\n\u003cli\u003eClose contacts at 140°F on temperature rise\u003c\/li\u003e\n\u003cli\u003eOpen contacts after cooling by approximately 20°F\u003c\/li\u003e\n\u003cli\u003ePrevent circulation of cool air during startup\u003c\/li\u003e\n\u003cli\u003eImprove heating efficiency and comfort\u003c\/li\u003e\n\u003cli\u003eAutomate blower fan cycling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eRelated Components\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFan Switch\u003c\/li\u003e\n\u003cli\u003eFan \u0026amp; Limit Control\u003c\/li\u003e\n\u003cli\u003eHigh Limit Switch\u003c\/li\u003e\n\u003cli\u003eBlower Relay\u003c\/li\u003e\n\u003cli\u003eFurnace Control Board\u003c\/li\u003e\n\u003cli\u003eBlower Motor\u003c\/li\u003e\n\u003cli\u003eTransformer\u003c\/li\u003e\n\u003cli\u003eThermostat\u003c\/li\u003e\n\u003cli\u003eTemperature Controls\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnician Notes\u003c\/h3\u003e\n\u003cp\u003eThe 3F01-140 is an \u003cstrong\u003eautomatic reset, close-on-rise snap disc fan switch\u003c\/strong\u003e. Contacts remain open during lower temperatures and close when the sensing surface reaches \u003cstrong\u003e140°F\u003c\/strong\u003e, energizing the blower circuit. As temperatures decrease approximately \u003cstrong\u003e20°F\u003c\/strong\u003e, the contacts automatically reopen, turning the blower off.\u003c\/p\u003e\n\u003cp\u003eAlways verify temperature ratings, switch action, terminal configuration, and mounting style before replacement. Improper fan switch ratings can affect blower timing, homeowner comfort, and overall furnace efficiency.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCommon Symptoms of Failure\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlower fan will not start\u003c\/li\u003e\n\u003cli\u003eBlower runs continuously\u003c\/li\u003e\n\u003cli\u003eDelayed blower operation\u003c\/li\u003e\n\u003cli\u003ePoor warm-air delivery\u003c\/li\u003e\n\u003cli\u003eFurnace overheating\u003c\/li\u003e\n\u003cli\u003eShort cycling blower motor\u003c\/li\u003e\n\u003cli\u003eIntermittent fan operation\u003c\/li\u003e\n\u003cli\u003eNo continuity through switch contacts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect power before servicing.\u003c\/li\u003e\n\u003cli\u003eVerify replacement temperature ratings match the original switch.\u003c\/li\u003e\n\u003cli\u003eConfirm switch action is \u003cstrong\u003eClose on Rise\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eMount securely to the original sensing surface.\u003c\/li\u003e\n\u003cli\u003eInspect terminals for corrosion or heat damage.\u003c\/li\u003e\n\u003cli\u003eVerify blower motor operation before replacing the switch.\u003c\/li\u003e\n\u003cli\u003eConfirm proper fan-on and fan-off temperatures after installation.\u003c\/li\u003e\n\u003cli\u003eRun a complete heating cycle to verify operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch3\u003eRecommended Inspection Items\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlower motor amperage\u003c\/li\u003e\n\u003cli\u003eBlower relay condition\u003c\/li\u003e\n\u003cli\u003eAir filter restriction\u003c\/li\u003e\n\u003cli\u003eHeat exchanger temperature\u003c\/li\u003e\n\u003cli\u003eWiring terminals\u003c\/li\u003e\n\u003cli\u003eFurnace control board\u003c\/li\u003e\n\u003cli\u003eTemperature rise across furnace\u003c\/li\u003e\n\u003cli\u003eSupply and return airflow\u003c\/li\u003e\n\u003cli\u003eBlower wheel cleanliness\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Neuco","offers":[{"title":"Default Title","offer_id":13005691075,"sku":"3F01-140","price":14.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/products\/yhst-130159302524877_2272_7457373.jpeg?v=1566073385","url":"https:\/\/hvacpartstore.com\/products\/3f01-140-copeland-comfort-control-white-rodgers-f140-20f-fan-switch","provider":"HVACpartstore","version":"1.0","type":"link"}