If your dishwasher's upper spray arm is not working or spinning, start by checking for physical obstructions caused by oversized plates or long utensils hanging down from the rack. Next, remove the spray arm, soak it in a warm vinegar solution for 30 minutes, and use a toothpick to clear out any hard water mineral scale or food debris clogging the tiny water jets. Inspect the plastic mounting clip and retaining nut to ensure they are not cracked or stripped, which would cause the arm to wobble and lose water pressure. Always turn off the kitchen circuit breaker before servicing internal components. You can verify that the fix is successful by spinning the spray arm by hand to ensure smooth rotation and running a test wash cycle to confirm proper water distribution.
1 votes
Marked as accepted