Vaillant 0020136628 Display (Plus)

Vaillant Display Board - Plus (0020136628). The Vaillant printed circuit board is the boiler's central control. It constantly monitors every process that occurs via the thermostats, sensors and switches. It also enforces the safety protocols, ensuring that the boiler shuts down if any of the internal readings indicate an error or fault. The printed circuit board serves as the appliance's brain, ensuring that everything functions properly and safely. Fits multiple appliances. Genuine brand new Vaillant product, covered by a Vaillant manufacturer's guarantee.