The Glow-worm printed circuit board is the boiler's central control. It constantly checks every process that occurs via the thermostats, switches and sensors. It also enforces the safety parameters, making sure that the boiler ceases to function if any of the internal readings point to any kind of error or fault. The printed circuit board is essentially the brains of the appliance, ensuring everything is running correctly and safely.

Brand Name	Glow-worm