Fenwal 35-705600-005 Control Refrigerant or a "no spark" condition

or a "no spark" condition despite receiving signal from the control board

and critical low water conditions

The B318 valve features a close-off pressure rating of 200 psi

Key Benefits Universal Staging Logic: Designed for high-reliability management of two-stage heating cycles and cooling integration

Common Questions Is the DHY1473 bi-directional for heat pump applications

Fenwal 35-705600-005 Control Refrigerant or a "no spark" conditionThe Fenwal 35 705600 005 is a professional grade 120 VAC Direct Spark Ignition (DSI) control designed for precise burner management in gas fired equipment. This microprocessor based module replaces older analog systems, offering significantly improved timing accuracy and robust flame sensing capabilities. Engineered with a 10 second Trial for Ignition (TFI) and an integrated 120V gas valve relay, it ensures reliable startup and consistent flame