Fenwal 35-665535-113 Control 30067439-890 technicians typically replace these filters

technicians typically replace these filters during annual maintenance or whenever oil discoloration is visible in the lines

Proper installation of this genuine York replacement part is essential for maintaining airflow integrity and preventing premature ignition failure or heat exchanger damage

Durable Construction: Built to withstand commercial duty cycles and maintain structural integrity under high RPM

or a consistent "no spark" condition during the ignition trial

Fenwal 35-665535-113 Control 30067439-890 technicians typically replace these filtersThe Fenwal 35 665535 113 Control is a microprocessor based hot surface ignition (HSI) module engineered to handle automated sequencing and flame monitoring in 24 VAC gas fired heating systems. This Fenwal replacement ignition board features an integrated combustion blower relay with a 60 second post purge and a 15 second pre purge, optimizing airflow before and after the heating cycle. Designed for high reliability start ups, the igniter control