Lochinvar & A.O. Smith 100293702 Control Board 320788-702 this replacement signal lamp helps

this replacement signal lamp helps prevent moisture carryover and downstream equipment damage by alerting operators to power status or maintenance requirements

High Flow Design: The 1000 scim capacity prevents signal lag in long-run pneumatic lines

Ensure the 90° flame is properly engulfing the top 1/3 of the thermopile element for maximum millivolt production

it handles the intense thermal stress of localized pilot flames while maintaining consistent electrical resistance

Lochinvar & A.O. Smith 100293702 Control Board 320788-702 this replacement signal lamp helpsThe Lochinvar & A. O. Smith 100293702 Control Board is the primary integrated boiler control designed for precise HVAC system management in high efficiency commercial and residential units. As a direct OEM replacement part, this board is engineered to oversee the full sequence of operation, including ignition control, flame sensing, and temperature regulation. It is a critical component for technicians servicing Lochinvar Power Fin and A. O. Smith PBL