uit board or ( pcb ) is the control centre of the appliance. It oversees every process that occurs via the sensors, switches 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 listed against 2 boilers on our website, The Glowworm BETACOM 24C , BETACOM 30C .