Key Benefits: OEM Precision: Genuine Rheem-Ruud replacement part ensures exact threading and terminal alignment

and Luxaire systems

ensuring safe and reliable furnace operation

Field testing typically requires checking for 6-10V DC at the harness to confirm the board is sending power before verifying the fluctuating signal as the motor rotates

Resistored Design: Integrated resistor extends tank life by mitigating electrolytic corrosion

Armstrong Furnace R100684-04 Pressure Switch Key Benefits: OEM Precision: GenuineThe Armstrong Furnace R100684 04 Pressure Switch is a critical safety component engineered for precise inducer motor verification and flue gas management. This OEM replacement part is factory calibrated to a . 65"wc set point, ensuring the combustion blower is generating the necessary static pressure before allowing the ignition sequence to proceed. As a SPST (Single Pole Single Throw) switch, it provides a reliable normally open circuit that closes