Burnham Boiler 103966-02 Control Board 320074-702 it requires a complete changeover

it requires a complete changeover to POE lubricant (typically targeting <5% residual mineral oil) to ensure proper oil return and compressor longevity

Designed to bridge the connection between the flame sensor probe and the control module (IFB)

How do I wire the P74EA-8 for oil pressure safety

the battery or 24VAC system power options offer flexible installation

Burnham Boiler 103966-02 Control Board 320074-702 it requires a complete changeoverThe Burnham Boiler 103966 02 Control Board is a critical OEM replacement component designed for precise sequence of operation and ignition management in specific Burnham hydronic systems. This boiler control module is the direct engineering successor to legacy part numbers 109632 01, 103660 01, and 103660 02. As a genuine Burnham replacement part, it ensures seamless communication between the thermostat, gas valve, and safety limits, preventing common