Lochinvar & A.O. Smith 100167769 Control Board Refrigerant these parts are technically identical

these parts are technically identical in specification

The EK series uses a premium compacted bead core rather than a standard core

OEM Compatibility: Exact replacement for McDonnell & Miller 157-RBP and 157S-RBP series controllers to ensure seamless fitment

The three-pole configuration allows for complete circuit isolation

ensuring direct compatibility with original blower wheels

Lochinvar & A.O. Smith 100167769 Control Board Refrigerant these parts are technically identicalThe Lochinvar & A. O. Smith 100167769 Integrated Control Board is a critical component for managing central heating logic, ignition sequences, and safety monitoring in high efficiency boilers and water heaters. As a veteran grade OEM replacement part, this board is the direct successor and is 100% identical to the RLY30013, ensuring seamless HVAC control board compatibility without requiring harness modifications. It functions as the primary "brain"