{"product_id":"source1-2435903000-dual-air-pressure-switch-assembly-0-8-5pf-0-45-pf-replacement-s1-02435903000","title":"SOURCE1 2435903000 Dual Air Pressure Switch Assembly -0.8 5PF -0.45 Pf Replacement S1-02435903000","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SOURCE1 2435903000 is a dual air pressure switch assembly designed for use in residential and light commercial HVAC systems. This switch monitors airflow and pressure conditions inside the unit to protect the system from unsafe operating conditions. When pressure falls outside the set range, the switch opens or closes its circuit to signal the control board and shut down or allow operation accordingly. This kind of protection is critical for preventing heat exchanger damage, inducer motor failures, and other costly breakdowns. The SOURCE1 2435903000 features a SPNO (Single Pole Normally Open) configuration, meaning the switch contacts remain open under normal resting conditions and close when the correct pressure threshold is reached. This dual switch assembly covers two pressure setpoints: -0.8 5PF and -0.45 PF, making it suitable for systems that require monitoring at multiple stages of the combustion air or venting process. HVAC technicians rely on dual pressure switches in high-efficiency furnaces and air handlers where both inducer performance and vent pressure must be verified before ignition is allowed. This part is a genuine OEM-grade replacement crafted to manufacturer specifications, ensuring a precise fit and reliable operation. It is compatible with popular York and Johnson Controls furnace models including D1NP060N09006TB, D1NP060N09006NX, and D1NP030N03646, among others. Having the correct pressure switch installed ensures the unit will start and run safely, cycle properly, and meet the original equipment performance standards. This assembly is the go-to choice for HVAC service technicians replacing failed or intermittently tripping pressure switches on York-branded equipment.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDual pressure switch assembly with setpoints of -0.8 5PF and -0.45 PF for two-stage pressure monitoring\u003c\/li\u003e\n\u003cli\u003eSPNO (Single Pole Normally Open) configuration compatible with York furnace control boards\u003c\/li\u003e\n\u003cli\u003eOEM-grade replacement fits models including D1NP060N09006TB, D1NP060N09006NX, and D1NP030N03646\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\u003cp\u003eThe SOURCE1 2435903000 dual air pressure switch assembly is an OEM-grade replacement that delivers accurate pressure sensing and reliable furnace protection. It is built to fit York and compatible HVAC equipment precisely, making it a dependable choice for professional HVAC technicians.\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SOURCE1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 2435903000\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: SPNO (Single Pole Normally Open)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwitch Type\u003c\/strong\u003e: Dual Air Pressure Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure Setpoints\u003c\/strong\u003e: -0.8 5PF and -0.45 PF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 16.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 3.05 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 3.05 inches\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"YORK","offers":[{"title":"Default Title","offer_id":51120971252018,"sku":"2435903000","price":87.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/304883142.gif?v=1778043570","url":"https:\/\/voomisupply.com\/products\/source1-2435903000-dual-air-pressure-switch-assembly-0-8-5pf-0-45-pf-replacement-s1-02435903000","provider":"Voomi Supply","version":"1.0","type":"link"}