This is a BRAND NEW Honeywell Digital Oil Primary Control Circuit Board. It's designed to replace all the old Carlin control board part #s listed below. Board comes with instructions wires and any other hardware you may or may not need to update your old control with new model. Thanks for looking and good luck!
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.
40200-02S 42230-02S 48245-S 50200-02S