Method and apparatus for controlling at least one valve

A method for controlling at least one valve, wherein the valve is actuated by means of a driving signal which represents the current through the valve coil, where it is determined whether a leak occurs in the control system which comprises at least one valve associated with a malfunction of the valve may be associated, characterized in that upon detection of leakage of a drive signal of a predetermined length and / or strength and / or rate of change is output to actuate the valve, which at least opens the valve for a short time and then closes or the ball valve leads to the valve seat.