When we turn the dishwasher on we have been having a rattling of the water pipes.
What is the solution?

The first thing to check is the solenoid valve that opens your water line on the washer. It is located in the front left corner of the washer behind the kick plate, right where the copper water pipe connects. Listen to it and touch it with the back side of your finger when it opens at the start of the fill, is this the location of your noise? Back to you