or the indoor blower failing to start during the heating cycle
Industrial Durability: Constructed with corrosion-resistant materials to withstand high-cycle operation in demanding environments
particularly models 350 and 400 manufactured before July 2009
physical damage to the alumina ceramic or significant rod pitting requires a complete replacement to ensure reliable flame rectification
Flow noise often occurs if the gas velocity exceeds 40 m/s at the inlet
Fenwal 35-655605-011 Control Els PW 17895 or the indoor blower failingThe Fenwal 35 655605 011 is a robust 24V Hot Surface Ignition (HSI) control module engineered for high precision gas fired appliance management. Built on a microprocessor based platform, this unit manages the complete ignition sequence, including a 0 second pre purge, 15 second inter purge (15IP), and a 5 second Trial for Ignition (TFI). Designed for three distinct tries for ignition (3TRY), it ensures reliable burner performance in furnaces, boilers,