this is due to debris in the pilot orifice or improper seating of the core spring

the part may be defective or the system is not reaching the required pressure

Durable Construction: Features heavy-duty materials that resist carbon buildup and thermal stress

Since the unit features a dry contact SPDT switch

Can I use Teflon tape on the 1/8-27 NPT threads

York S1-031-02959-000 Control Board Els PW 17895 this is due to debrisThe York S1 031 02959 000 Blower Control Board is a critical OEM replacement part engineered for high performance management of blower motor timing and system airflow. Designed specifically for York, Coleman, and Luxaire furnaces and air handlers, this HVAC furnace control board regulates the start stop sequences of the fan motor to ensure efficient heating and cooling cycles. As a veteran grade integrated furnace control, it monitors safety circuits