Source1 2435271000 Air Pressure Switch -0.50 on Fall

Product Description

The SOURCE1 2435271000 is an OEM air pressure switch designed for use in residential and light commercial HVAC systems. Air pressure switches are critical safety and control components. They monitor airflow and pressure levels inside the unit. When pressure drops or rises beyond set limits, the switch opens or closes its circuit. This either allows the system to run or shuts it down to prevent damage. The 2435271000 is rated for an activation pressure of -0.50 on fall, meaning it triggers when negative pressure crosses the -0.50 threshold on a pressure drop. This type of switch is commonly used to verify that the inducer motor or draft blower is operating correctly before allowing ignition. If airflow is blocked or the blower fails, the switch stays open and the unit will not fire. This protects the heat exchanger and prevents unsafe combustion conditions. HVAC technicians rely on this part when diagnosing no-heat calls, nuisance lockouts, or pressure switch fault codes. It is a direct OEM replacement, so it installs without modification and matches original electrical and mechanical specifications. The switch is compatible with a range of York and affiliated brand units including models 1LD0442, 2EH04513046, and 2EE04703624, among others. At 0.265 pounds, it is lightweight and compact, measuring 5 inches in length, 2.6 inches in width, and 1.9 inches in height. This makes it easy to handle and position during installation in tight equipment cabinets. Choosing a genuine OEM switch ensures correct pressure calibration and long-term reliability. Aftermarket substitutes may not meet the original pressure rating, which can cause nuisance trips or unsafe operation. This is a straightforward swap for any qualified HVAC technician performing a pressure switch replacement on compatible equipment.

• OEM air pressure switch with -0.50 on fall activation pressure for accurate system control
• Compatible with York units including models 1LD0442, 2EH04513046, and 2EE04703624
• Compact dimensions of 5 inches by 2.6 inches by 1.9 inches for easy installation in tight spaces

Product Highlights

The SOURCE1 2435271000 is a genuine OEM replacement air pressure switch built to match original specifications for compatible York HVAC systems. It provides reliable pressure-activated control that protects system components and ensures safe operation.

Product Information

Standard Information

• Brand: SOURCE1
• Manufacturer Part Number: 2435271000

Technical Specifications

• Activation Pressure: -0.50 On Fall
• Product Type: Air Pressure Switch
• Length: 5 inches
• Width: 2.6 inches
• Height: 1.9 inches
• Weight: 0.265 pounds