First thing i would do is check the breaker. If water leaked in through the loose panel, it may have shorted out one of the components in the door. (door switch, elec. timer, touch pad, etc). Hopefully the breaker killed the power fast enough before the water fried something. I couldn't see a pic on the part section but i'm pretty sure this model has a thermal fuse mounted on the main elec. control board. If that fuse blew it would also kill the power to the whole unit. After you make sure the power is OFF you can do continuity test on that fuse