The Rheem-Ruud 42-24194-08 is a factory OEM low pressure switch designed to protect your Rheem or Ruud furnace or air handler by monitoring pressure levels within the system. Set at a precise 0.15″ water column (w.c.) setpoint, this switch ensures safe and efficient operation by verifying that the correct draft or combustion air pressure is present before allowing the burner sequence to proceed.
Key Features
- OEM Rheem-Ruud replacement part — direct drop-in fit for compatible models
- 0.15″ w.c. pressure setpoint for accurate, reliable switching
- Monitors draft or combustion air pressure to safeguard furnace operation
- Prevents burner ignition if proper pressure conditions are not met, enhancing system safety
- Durable construction engineered to withstand the demands of residential and light commercial HVAC applications
- Ensures compliance with OEM specifications for warranty and performance integrity
Application
This pressure switch is a critical safety component used in Rheem and Ruud gas furnaces. It is typically wired into the control circuit and works in conjunction with the inducer motor to confirm adequate venting pressure before the ignition sequence is initiated. Replacing a faulty pressure switch with the correct OEM part helps restore proper furnace operation and maintain manufacturer-specified safety standards.
Why Choose OEM?
Using a genuine Rheem-Ruud OEM pressure switch ensures an exact fit, correct pressure calibration, and full compatibility with your existing control board and wiring harness — eliminating guesswork and reducing callbacks.
