The Glow-worm main pactrol printed circuit board is a genuine spare part for energy saver boilers. The printed circuit board, the command centre of a boiler, uses switches, thermostats and sensors to monitor and regulate each process taking place across a system. Additionally, it enforces safety precautions by stopping boiler operations if internal readings show any faults, such as high pressure or low water levels.

Brand Name	Glow-worm