If the millivolt output drops below the required threshold

providing a reliable failsafe against overheating

including 17D

The Robertshaw 190-052 is engineered with ventilation ports on all four sides to ensure maximum airflow

Is the S1-7995-3281/A a manual or automatic reset

Armstrong Furnace R44992-001 Sensor Ignitor If the millivolt output dropsThe Armstrong Furnace R44992 001 Sensor Ignitor is a critical OEM replacement component designed for high efficiency gas furnaces. This dual purpose assembly functions as both a hot surface igniter and a flame sensor, ensuring precise ignition sequences and reliable flame rectification. Engineered for high temperature durability, the R44992 001 provides the resistance required for consistent heating cycles while maintaining the millivolt signal