Lochinvar & A.O. Smith 100312667 Board 320788-702 or immediately if the pressure

or immediately if the pressure drop exceeds 10 mbar across the unit

Simplified Installation: Non-positional mounting allows for vertical or horizontal orientation without affecting switching relay performance

While individual packaging may vary

ensuring consistent CFM delivery through pleated high-MERV filtration systems

Reliable Performance: 1/7 HP rating provides consistent mechanical energy for air handlers and furnaces under demanding duty cycles

Lochinvar & A.O. Smith 100312667 Board 320788-702 or immediately if the pressureThe Lochinvar & A. O. Smith 100312667 Service PCP IEC Board is a critical integrated control component designed for high efficiency commercial water heaters and boilers. This Blue Board serves as the primary electronic control module, managing ignition sequences, flame sensing, and temperature regulation. It is the direct OEM replacement for 100187861, engineered to restore full functionality to the PCP IEC ignition system. When diagnosing fault codes