Went to start the dishwasher last night and nothing happened- no lights, no sounds- nothing at all. The door latch seems to be working fine and we unplugged it and plugged it back in with no change.I have no idea how old it is, it came with our house. Everything else seemed to be working fine except that sometimes if we do delayed start- it won't start by itself- other than that, everything was fine until last night.