Rheem-Ruud 42-24166-86 Dual Pressure Switch for Gas Furnaces

The Rheem-Ruud 42-24166-86 is a genuine OEM dual pressure switch designed for residential and light commercial gas furnaces. This safety component monitors both positive and negative pressure conditions within the furnace's combustion air system to ensure safe operation.

Key Features:

• Dual pressure sensing design monitors both inducer motor performance and venting conditions
• Factory-calibrated pressure settings for accurate and reliable operation
• High-temperature electrical terminals rated for HVAC applications
• Direct OEM replacement part ensures proper fit and function
• Safety interlock prevents furnace operation if pressure conditions are unsafe

This pressure switch is a critical safety device that prevents furnace operation when proper air pressure differential is not established. It works in conjunction with the inducer motor to verify proper draft and venting before allowing the gas valve to open. The dual switch design provides redundant safety monitoring for enhanced reliability.

Genuine Rheem-Ruud replacement part ensures compatibility with your equipment and maintains manufacturer warranty compliance. Professional installation by a qualified HVAC technician is recommended.