Description
The Rheem-Ruud 42-106081-01 Pressure Switch is a pressure-sensing component in HVAC systems to monitor airflow conditions inside compatible gas furnaces during operation. It works by detecting proper inducer motor pressure before allowing the ignition sequence to continue maintain safe furnace operation. This switch is commonly connected to the venting and combustion system, where accurate pressure verification is necessary for startup control. In residential and light commercial heating equipment, it prevents the unit from operating when blocked vents, restricted airflow, or improper draught conditions are present within the heating cycle.
