{"product_id":"773-311","title":"773-311","description":"This premium Dettson Pressure Switch is an essential safety component for residential heating systems and furnaces. As a reliable air proving switch, its primary function is to monitor the pressure within the inducer blower housing, ensuring that combustion gases are being properly vented before allowing the ignition process to proceed. This part is vital for preventing the operation of your furnace under unsafe conditions, such as a blocked vent or a failing inducer motor. Ideal for HVAC repairs where the system is experiencing ignition failure or airflow sensor errors, this pressure switch is designed for durability and precise response times to keep your heating equipment running safely and efficiently.\u003cbr\u003e\nType: Air Pressure Switch\u003cbr\u003e\nSize: Small\u003cbr\u003e\nApplication: Furnace and heating system ventilation monitoring, inducer motor airflow verification, and combustion safety control.\u003cbr\u003e\nSpecifications: Diaphragm-actuated safety switch designed to detect pressure differentials in HVAC venting systems.","brand":"BCFurnace","offers":[{"title":"DETTSON PRESSURE SWITCH \/ 773-311","offer_id":47620854513949,"sku":null,"price":273.98,"currency_code":"CAD","in_stock":true},{"title":"DETTSON PRESSURE SWITCH \/ R99F042","offer_id":47620854546717,"sku":null,"price":273.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/05e48d5c98df452b968c63f3bf515051.webp?v=1773960432","url":"https:\/\/bcfurnace.myshopify.com\/products\/773-311","provider":"BCFurnace","version":"1.0","type":"link"}