Lennox 10J73 Pressure Switch

The Lennox 10J73 Pressure Switch is a safety component meant for Lennox HVAC systems This switch operates automatically to check the pressure of the air in your system for safety and efficiency. If pressure drops to below or goes up to the safe operating range, the switch turns off the power to the furnace, air conditioner, or heat pump. This avoids possible harm from low refrigerant or high airflow. By controlling the pressure levels, the switch plays an essential role in the smooth performance of the device and may significantly decrease power consumption. As soon as the pressure drops to a normal level, the 10J73 self-recalibrates, and your HVAC system can go back to normal without your interference.