Called a technician from Samsung to come and look and told me that when this happens that it occurs because food has gotten stuck inside this piece. A/s Assy-case Brake. i did not let them repair cause they wanted 450.00 for parts and labor. he charged me 99 bucks for evaluation. i ordered the part through this website and part was in my house in 2 days and installed myself in less than 10 minutes and dishwasher is back to normal with no leaks...