MAIN 7679746 PCB COMBI 25 ECO. The Printed Circuit Board, also know as a PCB, Motherboard or control board, is the control centre of the heating appliance. The Printed Circuit Board monitors and controls every process that occurs via the sensors, switches and thermostats. The Printed Circuit Board (PCB) is also making sure that if something is not working correctly it shuts off the appliance. This part is listed against 2 appliances on our website, The MAIN ECO COMBI 25 and the MAIN ECO ELITE COMBI 25 .
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