Ariston 65101732 PCB CMP3-MCU HS MI/MMFI 3S

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 measures, making sure that the boiler ceases to function if any of the internal readings point to any fault in the boilers processes. The printed circuit board is essentially the brains of the appliance, ensuring everything is running correctly and safely.