Turn off the electrical power to your Frigidaire dishwasher from your kitchen circuit breaker.
Turn off the dishwasher’s water supply by turning the water supply valve below your sink to the "Off" position.
Open your dishwasher door, and then remove the top and bottom racks by pulling them all the way out of the dishwasher.
Locate the top spinner part hanging from inside the dishwasher’s top center.
Remove the bolt on the top spinners’ center with an adjustable wrench. Turning the entire spinner counterclockwise dislodges it from the unit.
Lift out the top spinner and remove it from the dishwasher. Inspect the top spinner for any damage. Replace the part with a new one if necessary.
Turn the new top spinner part clockwise into the same position at the top of the dishwasher.
Reinsert the bolt into the spinner’s middle, and then slide the top and bottom racks back into the dishwasher.
Close the dishwasher door. Turn the water supply valve back into the "On" position and turn the electric power back on from the circuit breaker.