the ignition sequence will lock out

and A99 temperature sensors

Easy Installation: Standard 2-wire spade terminal connection for immediate field replacement

Common Questions Can I use a 1075 RPM motor to replace an 825 RPM motor

Key Benefits Full Component Restoration: Includes the enclosing tube

Lochinvar & A.O. Smith 100109944 Ignition Board R-22 the ignition sequence will lockThe Lochinvar & A. O. Smith 100109944 Ignition Board is a critical OEM replacement part engineered for high performance commercial gas water heaters. Designed for precision ignition control, this integrated circuit manages the HSI (Hot Surface Ignition) sequence, ensuring consistent flame sensing and gas valve timing for specific BTN and BTR 500 series units. As a verified factory replacement board, it eliminates the timing issues and terminal