As an HVAC professional

increased amperage draw

the internal bimetal disc has failed and the switch must be replaced

While the fitting itself is designed to handle pressures up to 5

It will close the circuit once the sensor cools to 105 degrees F

Reznor 100799 Limit Control As an HVAC professionalThe Reznor 100799 Limit Control is a critical safety component designed for precise thermal regulation within Reznor unit heaters. This L150 25F high limit switch operates with a fixed temperature setpoint, featuring an open on rise configuration at 150F and a 25F differential for reset. Engineered for rapid response to heat exchanger over temperature conditions, this SPST limit switch ensures the burner circuit is interrupted if airflow is restricted