Rheem-Ruud 42-24196-82 Pressure Switch

The Rheem-Ruud 42-24196-82 Pressure Switch is a critical OEM safety component engineered for precise draft proving in high-efficiency gas furnaces. This SPST furnace pressure switch is factory-calibrated to a -0.80" WC set point, ensuring the inducer motor generates sufficient negative pressure to safely vent combustion gases before the ignition sequence begins. Featuring a standard 1/4" barb connection for secure pneumatic tubing attachment, this switch serves as a direct replacement for multiple legacy Protech and Rheem parts, maintaining the strict safety tolerances required for 90-plus percent AFUE condensing units. For service contractors, this authentic Rheem replacement part eliminates the risks associated with universal switches, providing a reliable 24V signal to the integrated furnace control. Whether you are troubleshooting air proving faults or performing preventative maintenance, utilizing a genuine HVAC pressure switch with the exact factory WC rating is essential for system stability and preventing nuisance furnace pressure switch error codes.

• OEM Precision: Guaranteed -0.80" WC trip point ensures exact matches to factory specifications for Rheem, Ruud, and WeatherKing models.
• Enhanced Connectivity: Equipped with a 1/4" barb connection and dual terminal configuration for rapid, secure field installation.
• Superior Durability: Constructed with self-cleaning contacts to prevent resistance buildup and intermittent "open circuit" failures.
• Broad Compatibility: Directly replaces part numbers 42-101956-02, 42-24387-03, 42-24012-03, and 42-24196-02.

What causes a Rheem furnace to trigger a pressure switch error?
Most often, an open switch indicates a restricted venting system, a clogged condensate drain, or a failing inducer motor. However, if the manometer confirms -0.80" WC is present but the circuit remains open, the internal diaphragm or contacts of the 42-24196-82 have likely failed.

Can I use a universal pressure switch instead of the 42-24196-82?
We do not recommend universal kits. HVAC systems rely on specific water column (WC) ratings for safety. A switch with a different set point may allow the furnace to operate under unsafe venting conditions or cause frequent cycling.

Is the silicone tubing included with this replacement?
This specific OEM part is typically supplied as the switch unit. We recommend inspecting your existing 2-foot silicone rubber tubing for cracks or moisture during installation to ensure a proper pneumatic seal.

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.