{"product_id":"773-350","title":"773-350","description":"This premium air pressure switch is a critical safety component designed for residential gas furnaces and HVAC heating systems. Functioning as an air-proving sensor, it monitors the negative pressure generated by the draft inducer motor to ensure that combustion gases are being properly vented before allowing the furnace to ignite. If your heating system is experiencing ignition failure, frequent cycling, or pressure switch lockout codes, this SPST (Single Pole Single Throw) switch provides a reliable solution. With a precise -0.34\" WC (Water Column) set point, it detects exhaust blockages or mechanical failures, protecting your home from safety hazards. This high-quality replacement part is engineered for durability and consistent performance in forced-air applications, making it an essential component for routine HVAC maintenance and repair.\u003cbr\u003e\nType: Air Pressure Switch\u003cbr\u003e\nSize: Compact\u003cbr\u003e\nApplication: Specifically designed for use in gas-fired furnaces and heating units to monitor inducer motor draft and ensure safe exhaust venting.\u003cbr\u003e\nSpecifications: Pressure Rating: -0.34\" WC; Circuitry: SPST (Single Pole Single Throw); Function: Air Proving \/ Vacuum Sensing","brand":"BCFurnace","offers":[{"title":"LENNOX PRESSURE SWITCH -0.34\" WC SPST \/ 773-350","offer_id":50568398635293,"sku":null,"price":157.95,"currency_code":"CAD","in_stock":true},{"title":"LENNOX PRESSURE SWITCH -0.34\" WC SPST \/ 67K32","offer_id":50568398668061,"sku":null,"price":157.95,"currency_code":"CAD","in_stock":true},{"title":"LENNOX PRESSURE SWITCH -0.34\" WC SPST \/ 67K3201","offer_id":50568398700829,"sku":null,"price":157.95,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0836\/7298\/9981\/files\/f7112682e42b407f85d409d338f4b706.webp?v=1773965944","url":"https:\/\/bcfurnace.myshopify.com\/products\/773-350","provider":"BCFurnace","version":"1.0","type":"link"}