{"product_id":"trane-american-standard-swt01778-reverse-flow-switch-opens-at-140-f-closes-at-125-f-1-2-automatic-temperature-switch","title":"Trane \/ American Standard SWT01778 Reverse Flow Switch – Opens at 140°F, Closes at 125°F, 1\/2\" Automatic Temperature Switch","description":"\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eTrane \/ American Standard SWT01778 Reverse Flow Switch – Opens at 140°F, Closes at 125°F, 1\/2\" Automatic Reset Safety Switch\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThe \u003cb\u003eTrane \/ American Standard SWT01778 Reverse Flow Switch\u003c\/b\u003e is a genuine OEM automatic reset safety switch designed to protect gas furnaces from overheating and unsafe reverse airflow conditions. This temperature-sensitive switch \u003cb\u003eopens at 140°F\u003c\/b\u003e to interrupt the control circuit when excessive heat is detected and \u003cb\u003eautomatically resets at 125°F\u003c\/b\u003e once normal operating temperatures return.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eEngineered to Trane OEM specifications, the SWT01778 provides dependable protection for critical furnace components by monitoring internal temperatures and helping prevent damage caused by airflow restrictions, blocked vents, or blower failures. Its \u003cb\u003e1\/2-inch mounting configuration\u003c\/b\u003e allows for a direct OEM replacement in compatible Trane and American Standard heating systems.\u003c\/p\u003e\n\u003cdiv class=\"MsoNormal\" align=\"center\" style=\"text-align: center;\"\u003e\u003chr size=\"2\" width=\"100%\" align=\"center\"\u003e\u003c\/div\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eKey Features and Function:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eOpens at 140°F\u003c\/b\u003e – Interrupts the safety circuit when excessive temperatures are detected\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eAutomatically Resets at 125°F\u003c\/b\u003e – Restores normal operation after temperatures return to a safe range\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eReverse Flow Protection\u003c\/b\u003e – Helps protect the furnace from overheating caused by restricted or reversed airflow\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eAutomatic Reset Design\u003c\/b\u003e – No manual reset required after cooling\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eGenuine OEM Replacement\u003c\/b\u003e – Manufactured for Trane and American Standard furnace applications\u003c\/p\u003e\n\u003cdiv class=\"MsoNormal\" align=\"center\" style=\"text-align: center;\"\u003e\u003chr size=\"2\" width=\"100%\" align=\"center\"\u003e\u003c\/div\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eProduct Details and Key Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003ePart Number:\u003c\/b\u003e SWT01778\/SWT0196\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eManufacturer:\u003c\/b\u003e Trane \/ American Standard\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003ePart Type:\u003c\/b\u003e Reverse Flow Safety Switch\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eSwitch Type:\u003c\/b\u003e Automatic Reset Temperature Switch\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eOpen Temperature:\u003c\/b\u003e 140°F\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eReset Temperature:\u003c\/b\u003e 125°F\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eMounting Size:\u003c\/b\u003e 1\/2 Inch\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eApplication:\u003c\/b\u003e Gas Furnaces\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eFunction:\u003c\/b\u003e Monitors furnace temperature and opens the control circuit during reverse airflow or overheating conditions\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eInstallation Type:\u003c\/b\u003e Direct OEM Replacement\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eCompatible Brands:\u003c\/b\u003e Trane, American Standard\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eShipping Weight:\u003c\/b\u003e Approx. 0.2 lb\u003c\/p\u003e\n\u003cdiv class=\"MsoNormal\" align=\"center\" style=\"text-align: center;\"\u003e\u003chr size=\"2\" width=\"100%\" align=\"center\"\u003e\u003c\/div\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-family: 'Segoe UI Emoji',sans-serif; mso-bidi-font-family: 'Segoe UI Emoji';\"\u003e🛠️\u003c\/span\u003e HVAC Depot Pro Tip: Replace the Cause, Not Just the Switch\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eIf a reverse flow switch continues to trip, inspect the air filter, blower motor, evaporator coil, venting system, and heat exchanger for restrictions or airflow problems. Replacing the switch without correcting the underlying issue can result in repeated shutdowns and potential equipment damage.\u003c\/p\u003e\n\u003cdiv class=\"MsoNormal\" align=\"center\" style=\"text-align: center;\"\u003e\u003chr size=\"2\" width=\"100%\" align=\"center\"\u003e\u003c\/div\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eCross-Reference \u0026amp; Compatibility:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eThe \u003cb\u003eSWT01778\u003c\/b\u003e is commonly used in compatible HVAC equipment requiring:\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eOEM Part Number:\u003c\/b\u003e SWT01778\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eSwitch Type:\u003c\/b\u003e Automatic Reset Reverse Flow Switch\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eOpen Temperature:\u003c\/b\u003e 140°F\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eReset Temperature:\u003c\/b\u003e 125°F\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e• \u003cb\u003eCompatible Brands:\u003c\/b\u003e Trane, American Standard\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003ci\u003eAlways verify the part number, mounting style, temperature ratings, and electrical connections before ordering.\u003c\/i\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e","brand":"HVAC Parts and Equipment Depot Open To Homeowners and Contractors","offers":[{"title":"Default Title","offer_id":53541370429803,"sku":"SWT01778","price":47.56,"currency_code":"USD","in_stock":true}],"url":"https:\/\/tophvacparts.com\/products\/trane-american-standard-swt01778-reverse-flow-switch-opens-at-140-f-closes-at-125-f-1-2-automatic-temperature-switch","provider":"HVAC Parts and Equipment Depot Open To Homeowners and Contractors","version":"1.0","type":"link"}