Siemens Building Technology GCA121.1U Actuator THPU32HP7Y the problem is likely internal

the problem is likely internal debris or a torn diaphragm

Precision Airflow Control: Maintains factory-set RPM to ensure optimal heat exchange and prevent system high-pressure faults

contractors should verify the condition of the inducer motor gasket and pressure switch tubing at the time of heat exchanger replacement to ensure a complete seal within the combustion chamber

this unit provides precise level management at operating pressures up to 150 psi

Siemens Building Technology GCA121.1U Actuator THPU32HP7Y the problem is likely internalThe Siemens GCA121. 1U is a high performance spring return rotary damper actuator designed for the heavy duty demands of commercial HVAC systems. Delivering a robust 142 lb in torque (rated up to 160 lb in in specific applications), this 24VAC damper actuator provides reliable on off 2 position control for return air, exhaust, and face and bypass dampers. Built with brushless DC motor technology, the unit features integrated stall protection to