ensure the coil sensor is reading below the threshold or jumpered for the test

blower speed regulation

The York S1-024-35670-000 Jumper Bar is a critical 4-pole jumper bar & cover assembly engineered for high-amperage power distribution in commercial and residential HVAC systems

or natural degradation of the silicon carbide over time

This stainless steel power element features a 3/8" x 1/2" connection size

White-Rodgers 36H65-401 Gas Valve Els PW 17895 ensure the coil sensor isThe White Rodgers 36H65 401 is a high capacity, two stage gas valve engineered for precision fuel regulation in commercial and residential heating systems. Designed as a universal solution for intermittent ignition, direct spark ignition (DSI), and hot surface ignition (HSI) applications, this 3 4" x 3 4" NPT valve provides a maximum pressure rating of 1 2 PSI. The slow open characteristics ensure smooth burner transitions, reducing mechanical stress