{"product_id":"543-025","title":"543-025","description":"The 3\" High Limit Switch L190-30F is a critical safety component designed for residential and commercial HVAC systems and forced-air furnaces. This thermal limit control monitors the heat levels within the appliance's plenum or heat exchanger, acting as a failsafe to prevent overheating. If the temperature exceeds safe operating limits, the switch automatically opens the circuit to shut down the heating element or burner. Featuring an L190-30F calibration, this switch is engineered to trip at 190°F and reset once the temperature cools by 30°F (closing at 160°F). Replacing a malfunctioning high limit sensor is essential for restoring proper heating cycles and protecting your furnace from internal damage. This part is a standard solution for technicians and homeowners looking to fix heating units that are short-cycling or failing to stay on due to safety trips.\u003cbr\u003e\nType: High Limit Control Switch\u003cbr\u003e\nSize: 3-inch\u003cbr\u003e\nApplication: HVAC systems, gas furnaces, electric heaters, and central heating units requiring thermal safety monitoring.\u003cbr\u003e\nSpecifications: Opening Temperature: 190°F; Temperature Differential: 30°F (Closes at 160°F); Reset Type: Automatic; Sensor Type: 3-inch insertion probe.","brand":"BCFurnace","offers":[{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 543-025","offer_id":47251277480221,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 025-29041-012","offer_id":47251277512989,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 02529041012","offer_id":47251277578525,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 208W48","offer_id":47251277644061,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 2702-3181\/A","offer_id":47251277742365,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 27023181\/A","offer_id":47251277775133,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 2702-318P\/A","offer_id":47251277873437,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ 2702318P\/A","offer_id":47251277906205,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-025-29041-012","offer_id":47251277545757,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-02529041012","offer_id":47251277611293,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-2702-3181\/A","offer_id":47251277676829,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-27023181\/A","offer_id":47251277709597,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-2702-318P\/A","offer_id":47251277807901,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true},{"title":"3\" HIGH LIMIT SWITCH L190-30F \/ S1-2702318P\/A","offer_id":47251277840669,"sku":null,"price":229.03,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/2232fe7bb8024f59bd1f35c18e89b05f.webp?v=1773961615","url":"https:\/\/bcfurnace.myshopify.com\/products\/543-025","provider":"BCFurnace","version":"1.0","type":"link"}