you know that a faulty flame sensor is a leading cause of the "ignition for 3 seconds then shutdown" symptom

Engineered to handle 30-amp FLA (Full Load Amps) and 40-amp resistive loads

The kit includes a thermopile-actuated setup

and 7222 series gas controls

Rheem-Ruud 42-24196-82 Pressure Switch Els PW 17895 you know that a faultyThe Rheem Ruud 42 24196 82 Pressure Switch is a critical OEM safety component engineered for precise draft proving in high efficiency gas furnaces. This SPST furnace pressure switch is factory calibrated to a 0. 80" WC set point, ensuring the inducer motor generates sufficient negative pressure to safely vent combustion gases before the ignition sequence begins. Featuring a standard 1 4" barb connection for secure pneumatic tubing attachment, this