Fenwal 35-652505-003 Ignition Module R-410A this SF series unit features

this SF series unit features a 48 cubic inch filtration area

0 µA usually indicates a failing sensor

the P626763 is the current replacement for P623674

high-performance monitoring is non-negotiable

Fenwal 35-652505-003 Ignition Module R-410A this SF series unit featuresThe Fenwal 35 652505 003 Ignition Module is a professional grade, microprocessor based Hot Surface Ignition (HSI) control designed specifically for Laars water heaters and boiler systems. As a critical component of the Fenwal 35 65 series, this module utilizes advanced logic to supervise the sequence of operation, including the inducer motor, pressure switch monitoring, and remote flame sensing. It features a field selectable 120 240 VAC input,