Hello, I have a Bosch shu4326uc/u12 dishwasher, about 9 years old now. Last night the cycle ran fine. I unloaded and loaded it this morning, closed the door, but it wont stay latched. You can hear the latch engage, but as soon as you take pressure off the door, you hear it un-latch and the door pops open. Any help at all would be great! Thanks -Rob