{"product_id":"rheem-ruud-47-22861-01k-limit-switch","title":"Rheem-Ruud 47-22861-01K Limit Switch","description":"\u003cp\u003eThe \u003cstrong\u003eRheem-Ruud 47-22861-01K\u003c\/strong\u003e is an essential \u003cstrong\u003emanual reset limit switch\u003c\/strong\u003e designed for \u003cstrong\u003efurnace high limit\u003c\/strong\u003e safety and high-temperature protection. This \u003cstrong\u003eOEM Rheem replacement\u003c\/strong\u003e part features a critical 350°F opening threshold, serving as a primary thermal failsafe to prevent heat exchanger damage and hazardous operating conditions in residential and commercial equipment. Engineered for precise \u003cstrong\u003eHVAC safety control\u003c\/strong\u003e, this switch is a direct replacement for the earlier 47-22861-01 and is common in Rheem, Ruud, WeatherKing, and Thermal Zone air handlers and furnaces.\u003c\/p\u003e\n\n\u003cp\u003eAs a \u003cstrong\u003ehigh-temperature limit switch\u003c\/strong\u003e with an SPST normally-closed configuration, it monitors internal cabinet temperatures and breaks the 24V or 120\/230V circuit to the gas valve or controller if airflow becomes restricted. The manual reset requirement is a strategic design feature, forcing a field inspection to identify root causes like a failed blower motor, obstructed return air, or heavily fouled filters before the system can be fired again. This flanged airstream mount component ensures the unit maintains safe operation within factory-specified temperature rises.\u003c\/p\u003e\n\n\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Compatibility:\u003c\/strong\u003e Specifically designed for Rheem, Ruud, and WeatherKing gas heating equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Limit Protection:\u003c\/strong\u003e Rated for a 350°F cutout to protect the heat exchanger from thermal stress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eField Safety Reset:\u003c\/strong\u003e Manual button ensures technician verification after a trip event to prevent repetitive cycling under fault conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-Reference Reliable:\u003c\/strong\u003e Officially replaces and upgrades the 47-22861-01 part number.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable SPST Design:\u003c\/strong\u003e Snap-action contacts rated for reliable switching in 120\/230V AC applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eCommon Questions:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat causes a 350°F limit switch to trip?\u003c\/strong\u003e Typically, a trip is triggered by severe airflow restrictions such as a failed indoor blower motor, dirty evaporator coils, or a completely blocked filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan I bypass this switch for testing?\u003c\/strong\u003e Never bypass a safety limit during normal operation. If the switch is open, it indicates an unsafe temperature condition that must be diagnosed by a professional.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhere is this switch located in the furnace?\u003c\/strong\u003e It is typically mounted on the blower housing or the burner vestibule panel where it can accurately monitor the air temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Rheem-Ruud","offers":[{"title":"Default Title","offer_id":35643991948,"sku":"47-22861-01K","price":12.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/Pic_2b601d37-3968-45e3-b3dd-a53f667e30f3.png?v=1775152345","url":"https:\/\/www.gsistore.com\/en-ca\/products\/rheem-ruud-47-22861-01k-limit-switch","provider":"GSIstore","version":"1.0","type":"link"}