This is a Brand New OEM Upgraded Source1 Control Circuit Board. Source1 is the OEM source for all parts used in York, Coleman, Evcon, and Luxaire HVAC equipment.
The control board is the "brain" of your unit, coordinating and executing the operation of other various components by sending voltage when and where needed. A control board is constantly monitoring sensors and safety switches in the unit.
1157-83-902B 67297 1157-902