Rheem-Ruud 42-101444-83 Pressure Switch

The Rheem-Ruud 42-101444-83 Pressure Switch is an essential safety component designed for HVAC draft inducer motors, ensuring proper venting before the ignition sequence begins. This SPDT switch operates at a precise 1.00" WC set point, monitoring the negative pressure differential required to vent combustion gases safely. As a genuine OEM Rheem replacement part, it is engineered to maintain factory specifications in high-efficiency gas furnaces and air handlers, preventing system operation if flue obstructions or inducer failures occur. The assembly includes the switch, mounting bracket, tubing, and wire assemblies, allowing for a direct fit in compatible Rheem and Ruud furnace models. Technicians should verify the specific WC rating and part number, as pressure settings are non-adjustable and critical for system safety and furnace troubleshooting.

• Precise Calibration: Factory-set at 1.00" water column to ensure the system only fires under optimal "induced draft" conditions.
• Complete Installation Kit: Comes with the factory bracket and pressure switch tubing, reducing field modification time during service calls.
• Universal Compatibility: Replaces multiple legacy part numbers including 42-101444-03 and 42-22473-03 for broader application across Rheem-Ruud equipment.
• Enhanced Safety: The normally open contacts prevent the gas valve from opening if the venting system is compromised or the inducer motor fails to reach speed.

• What does a 57 error code mean on a Rheem furnace? An error code 57 typically indicates a pressure switch circuit issue, often caused by a failed switch, restricted vent, or water in the collection chamber.
• Can I use a universal pressure switch instead of the 42-101444-83? It is highly recommended to use the exact OEM Rheem 42-101444-83, as slight deviations in the water column set point can lead to unsafe operation or frequent short cycling.
• How do I test this switch with a manometer? Connect your digital manometer to the inducer port; the reading must exceed 1.00" WC for the switch to close and send 24V to the control board.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.