the switch is likely faulty and requires replacement

Can I use this to control a ventilation fan and a status light simultaneously

The York S1-031-02995-000 Control Board is a genuine OEM replacement engineered for York gas/electric HVAC units

Integrated Safety Switch: Features a factory-installed switch for thermal protection and reliable cycling under high-demand loads

preventing ignition in the event of a blocked flue

Veris Industries CDE Sensor THPU32HP7Y the switch is likely faultyThe Veris Industries CDE is a high performance duct mount CO2 sensor specifically engineered for Demand Control Ventilation (DCV) in commercial HVACR environments. Built with Non Dispersive Infrared (NDIR) technology, this 0 10V 4 20mA selectable transmitter provides precise indoor air quality monitoring across a 0 to 2000 ppm range. The high impact ABS plastic enclosure ensures durability in rigorous duct environments, while the microprocessor based