I have an 8 year old whirlpool dishwasher. It was just recently serviced for poor waterpressure due to a blockage. Two days later when I was running it the machine just shut down. All lights are out and do not come on when you press the key pad. I have checked the power and source and it is fine and I have checked the connection at the machine. My tester shows power in the machine's line leading up to the control panel inside the door. Does this machine have an internal fuse or fuseable link?