When the boiler heats up to the temperature on the termostat on the pipe in the hot press the fuse trips:mad:

Please explain "Fuse" What fuse trips? What kind of fuse? What is the fuse rated for? Where is the "fuse" located? Is this a pressure relief valve for the boiler that trips and water spits out of that? People use different words to describe things It would be very helpful to everyone hear to have more Info Thank you.