{"product_id":"3l01-165-copeland-comfort-control-white-rodgers-l165-40f","title":"3L01-165 Copeland Comfort Control (White Rodgers) L165-40F","description":"\u003ch1\u003e\u003cspan\u003e3L01-165 Copeland Comfort Control (White Rodgers) L165-40F In125F Out 165F\u003c\/span\u003e\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\u003e3L01-165 Snap Disc Limit Switch (White-Rodgers \/ Copeland Comfort Control)\u003c\/strong\u003e is an automatic reset temperature safety control designed to protect HVAC and refrigeration equipment from overheating. Featuring a \u003cstrong\u003e165°F fixed cut-out temperature\u003c\/strong\u003e and \u003cstrong\u003e125°F fixed cut-in temperature\u003c\/strong\u003e, this \u003cstrong\u003eopen-on-rise\u003c\/strong\u003e switch interrupts the control circuit when excessive temperatures occur and automatically resets once temperatures return to a safe operating level.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCross-Reference\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3L01-165\u003c\/li\u003e\n\u003cli\u003e3L01165\u003c\/li\u003e\n\u003cli\u003eL165-40F\u003c\/li\u003e\n\u003cli\u003e60T11-610069\u003c\/li\u003e\n\u003cli\u003eWhite-Rodgers 3L01-165\u003c\/li\u003e\n\u003cli\u003eCopeland Comfort Control 3L01-165\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eDirect OEM\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhite-Rodgers 3L01-165\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\u003eYork\u003c\/li\u003e\n\u003cli\u003eColeman\u003c\/li\u003e\n\u003cli\u003eLuxaire\u003c\/li\u003e\n\u003cli\u003eUniversal HVAC Applications\u003c\/li\u003e\n\u003cli\u003eRefrigeration Equipment Manufacturers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eUsed in HVAC and refrigeration equipment to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProtect components from overheating\u003c\/li\u003e\n\u003cli\u003eOpen the circuit at 165°F\u003c\/li\u003e\n\u003cli\u003eAutomatically reset at 125°F\u003c\/li\u003e\n\u003cli\u003eSafeguard motors, compressors, heaters, and control circuits\u003c\/li\u003e\n\u003cli\u003ePrevent damage caused by excessive operating temperatures\u003c\/li\u003e\n\u003cli\u003eImprove equipment safety and reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eRelated Components\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSnap Disc Limit Switch\u003c\/li\u003e\n\u003cli\u003eHigh Limit Control\u003c\/li\u003e\n\u003cli\u003eFan Switch\u003c\/li\u003e\n\u003cli\u003eFan \u0026amp; Limit Control\u003c\/li\u003e\n\u003cli\u003eControl Board\u003c\/li\u003e\n\u003cli\u003eTransformer\u003c\/li\u003e\n\u003cli\u003eCompressor Contactor\u003c\/li\u003e\n\u003cli\u003eTemperature Sensor\u003c\/li\u003e\n\u003cli\u003eBlower Relay\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnician Notes\u003c\/h3\u003e\n\u003cp\u003eThe 3L01-165 is an \u003cstrong\u003eautomatic reset, open-on-rise limit switch\u003c\/strong\u003e. Contacts remain closed during normal operation and open when the sensing surface reaches \u003cstrong\u003e165°F\u003c\/strong\u003e. The switch automatically resets when temperature falls to approximately \u003cstrong\u003e125°F\u003c\/strong\u003e. Always verify temperature ratings, terminal configuration, mounting style, and switch action before replacement.\u003c\/p\u003e\n\u003cp\u003eRepeated limit trips typically indicate airflow restrictions, dirty coils, failing motors, blocked vents, excessive heat load, or other operational issues that should be diagnosed before replacing the switch.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCommon Symptoms of Failure\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEquipment shuts down on safety\u003c\/li\u003e\n\u003cli\u003eOpen limit circuit fault\u003c\/li\u003e\n\u003cli\u003eIntermittent operation\u003c\/li\u003e\n\u003cli\u003eNo continuity through switch contacts\u003c\/li\u003e\n\u003cli\u003eHeating or cooling lockouts\u003c\/li\u003e\n\u003cli\u003eRepeated nuisance trips\u003c\/li\u003e\n\u003cli\u003eCompressor protection faults\u003c\/li\u003e\n\u003cli\u003eFailure to restart after overheating\u003c\/li\u003e\n\u003cli\u003eReduced system reliability\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 temperature ratings match the original switch.\u003c\/li\u003e\n\u003cli\u003eConfirm switch action is \"Open on Rise.\"\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\u003eCheck airflow and operating temperatures.\u003c\/li\u003e\n\u003cli\u003eVerify continuity before startup.\u003c\/li\u003e\n\u003cli\u003eTest complete system operation after installation.\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 operation\u003c\/li\u003e\n\u003cli\u003eAirflow and duct restrictions\u003c\/li\u003e\n\u003cli\u003eEvaporator and condenser coil cleanliness\u003c\/li\u003e\n\u003cli\u003eElectrical terminals\u003c\/li\u003e\n\u003cli\u003eWiring harness condition\u003c\/li\u003e\n\u003cli\u003eControl board diagnostics\u003c\/li\u003e\n\u003cli\u003eCompressor operating temperature\u003c\/li\u003e\n\u003cli\u003eSupply voltage\u003c\/li\u003e\n\u003cli\u003eVentilation around equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eControls, Temperature, 125 degrees F Fixed Cut-in Temperature, 165 degrees F Fixed Cut-out Temperature, Open on Rise Switch Action, Snap Disc Auto Reset Limit Switch (60T11-610069)\u003c\/span\u003e\u003c\/p\u003e","brand":"Neuco","offers":[{"title":"Default Title","offer_id":45886098505794,"sku":"3L01-165","price":14.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1071\/8320\/files\/Screenshot2026-11-02185327.png?v=1793670837","url":"https:\/\/hvacpartstore.com\/products\/3l01-165-copeland-comfort-control-white-rodgers-l165-40f","provider":"HVACpartstore","version":"1.0","type":"link"}