Chosen Solution

Once the Barista machine is powered on, the brewhead begins spraying water immediately and only stops if I turn the steam dial on. It stops when steam is coming out, but starts again when steam button is dialed off. This happens when neither the Brew nor Steam button are depressed. I checked the spring-loaded valve in the brewhead and the little silicone ball is intact, attached to the spring. It is rounded and doesnt appear damaged. Could the brew button be faulty? Other suggestions? Help! Thanks

If the pump is running whenever the machine is on, and turning the steam knob stops it, then you have your on and off mixed up. Opening the steam knob triggers a switch which turns on the pump, and closing it disengages that switch and stops the pump. Looking at the face of the knob, counter-clockwise is open/on, clockwise is closed/off.