One of the similar looking black hoses that connects to a dispenser on the inside of the machine at the end of the washing cycle (when the machine starts to drain and spin) is swelling and building pressure. The tubes go into a metal box that says high heat. The dispenser is connected with a thin clear tube (the only one not black). Its the hose that has a nozzle connector with a little rubber ball to it. I opened up the nozzle to check if maybe the ball inside got defective but it looks just fine.