Lochinvar & A.O. Smith 100312667 Board R-410A or clogged crossover ports

or clogged crossover ports

Durable Brass Construction: Engineered to withstand high vibration and thermal cycling common in condensing units

Its polymer construction provides superior elasticity and resistance to chemical degradation compared to generic alternatives

This high-limit control is engineered specifically for Weil-McLain gas boilers

Can this replace a high back pressure (HBP) compressor

Lochinvar & A.O. Smith 100312667 Board R-410A or clogged crossover portsThe 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