Disconnect the electrical power from your Hotpoint dishwasher from your kitchen circuit breaker.
Open the dishwasher door, then pull the bottom and top racks all the way out of the dishwasher.
Locate the spray towers at the bottom center of the dishwasher attached to the top of the lower spray arm.
Turn the spray tower counterclockwise to unscrew it and then lift up the tower part to remove it from the dishwasher.
Inspect the spray tower for any damage, such as dents or broken pieces, and replace the part, if necessary.