Fenwal 35-615521-203 Module 318423-701 8A pick-up ensures the start

8A pick-up ensures the start winding is energized only during the critical ignition phase

it is recommended that a licensed HVAC technician perform the installation to ensure proper electrical handling and system calibration

Universal BAS Compatibility: Seamlessly integrates with any BAS/DDC system accepting a 1k ohm nickel RTD input

reducing labor time during furnace blower repair

What should I do if the burner won't fire

Fenwal 35-615521-203 Module 318423-701 8A pick-up ensures the startThe Fenwal 35 615521 203 is a 24v DSI ignition module engineered for high performance gas fired appliances including furnaces, boilers, and water heaters. As a microprocessor based control, it provides precise sequencing and safety monitoring for direct spark ignition systems. This specific model features a 30 second pre purge to clear the combustion chamber and a 7 second trial for ignition (TFI) to ensure reliable burner startup. Built with an