773-226

This premium Rheem Pressure Switch is a vital safety component designed for high-efficiency gas furnaces and residential HVAC systems. Functioning as an air proving switch, it monitors the pressure generated by the draft inducer blower to ensure that the combustion process is venting safely and effectively. With a factory-calibrated set point of 0.90" WC (Water Column), this sensor prevents the furnace from igniting if it detects an airflow obstruction, a blocked flue, or a failing inducer motor. If your heating system is failing to start or is cycling improperly, this air pressure switch is a key replacement part to restore reliable operation and maintain home safety.
Type: Air Pressure Switch
Size: Standard HVAC Component
Application: Gas furnace safety monitoring, HVAC draft inducer airflow verification, and air proving for high-efficiency heating systems.
Specifications: Pressure Rating: 0.90" WC (Water Column); Application: Air Proving/Safety Interlock.