Product Information: The printed circuit board or ( pcb ) is the boilers central control. It controls and monitors every process that occurs via the switches, sensors and thermostats. It also enforces the safety protocols, making sure that the boiler ceases to function if any of the internal readings point to an error in the boilers processes. The printed circuit board is effectively the brain of your boiler, It is programmed to ensure everything is running as it should.

This part is present in 8 different boilers in the Potterton range including the Potterton GOLD COMBI , PROMAX COMBI 33, PROMAX COMBI 33, DUOTEC HE A , DUOTEC HE .