this thermistor-based component monitors airflow at the discharge point to provide real-time feedback to the electronic amplifier

preventing control loop "hunting" and extending system component life

This Direct Acting kit features a standard 55-85°F dial range

Common Questions Which valve series is this rebuild kit compatible with

This product is the switch assembly itself

Fenwal 35-655908-003 Ignition Control Freon this thermistor-based component monitors airflowThe Fenwal 35 655908 003 is a 24 VAC microprocessor based Hot Surface Ignition (HSI) control engineered for high performance gas fired appliances. Built for reliability in demand heavy environments, this module manages the combustion blower, monitors airflow through the pressure switch, and executes a precise ignition sequence. This specific configuration features 0 second prepurge and 0 second inter purge timings, combined with a 7 second Trial for