{"product_id":"773-400","title":"773-400","description":"This premium Pressure Switch Assembly is a critical safety component designed for high-efficiency gas furnaces and residential HVAC systems. Functioning as an air proving switch, this part monitors the vacuum pressure created by the draft inducer motor to ensure that combustion gases are being properly vented before the ignition sequence begins. If the switch detects inadequate airflow or a venting obstruction, it acts as a fail-safe to prevent the furnace from operating. A malfunctioning pressure switch is a common cause of heating systems failing to ignite or shutting down prematurely. This reliable replacement assembly helps restore safe, efficient operation to your heating unit, ensuring consistent indoor comfort during cold weather.\u003cbr\u003e\nType: Air Pressure Switch\u003cbr\u003e\nSize: Small\u003cbr\u003e\nApplication: Used in residential high-efficiency gas furnaces and forced-air heating systems to monitor draft inducer airflow and ensure safe combustion exhaust.\u003cbr\u003e\nSpecifications: Diaphragm-actuated safety sensor; features integrated mounting bracket and pressure ports; designed for precision air pressure monitoring in HVAC applications.","brand":"BCFurnace","offers":[{"title":"PRESSURE SWITCH ASSEMBLY \/ 773-400","offer_id":51062222815517,"sku":null,"price":356.6,"currency_code":"CAD","in_stock":true},{"title":"PRESSURE SWITCH ASSEMBLY \/ 1184277","offer_id":51062222848285,"sku":null,"price":356.6,"currency_code":"CAD","in_stock":true},{"title":"PRESSURE SWITCH ASSEMBLY \/ ICP1184277","offer_id":50572958073117,"sku":null,"price":356.6,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/74ed47e189f74809aaf57a4d2bb0848b.webp?v=1773963199","url":"https:\/\/bcfurnace.myshopify.com\/products\/773-400","provider":"BCFurnace","version":"1.0","type":"link"}