Description
Rheem-Ruud 42-101447-02 Pressure Switch Overview
The Rheem-Ruud 42-101447-02 is a factory-specification pressure switch rated at 1.55″ water column (w.c.), designed to monitor and verify proper inducer draft operation in Rheem and Ruud gas furnaces. This OEM replacement component helps protect your heating system by confirming that adequate negative pressure is established before allowing the ignition sequence to proceed — a critical safety function in modern induced-draft and condensing furnace designs.
Key Features
- OEM Rheem-Ruud replacement pressure switch — direct-fit for compatible Rheem and Ruud furnace models
- Rated set point: 1.55″ water column (w.c.)
- Monitors inducer/draft blower operation to confirm proper airflow before ignition
- Helps prevent unsafe furnace operation due to blocked flue, failed inducer, or restricted venting
- Precision-calibrated diaphragm design for reliable, repeatable switching action
- Durable construction built to withstand the demands of residential and light-commercial heating applications
Application & Compatibility
The 42-101447-02 pressure switch is an authorized OEM part sourced directly from Rheem-Ruud, ensuring proper fit, form, and function in compatible Rheem and Ruud gas furnace models. Always cross-reference your furnace model number and existing pressure switch specifications before installation to confirm compatibility.
Why Pressure Switches Matter
Pressure switches are a vital safety control in induced-draft and condensing furnaces. They verify that the draft inducer motor is operating correctly and that the flue pathway is clear. A faulty or out-of-calibration pressure switch can result in nuisance lockouts or, more critically, allow the furnace to operate under unsafe venting conditions. Replacing a failed switch with the correct OEM part restores proper system protection.
Specifications
- SKU / Part Number: 42-101447-02
- Brand: Rheem-Ruud
- Set Point: 1.55″ w.c.
- Type: Draft/Inducer Pressure Switch
- Application: Gas Furnace (Induced-Draft / Condensing)
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