Click here for PDF of your refrigerator.Does your model have the ice maker? Maybe water is siphoning from the ice maker water line.
Also, from the manual:
Function
During the summer months of high temperatures and
humidity, the metal frame between the freezer and fresh
food compartments may have water droplets forming. The
number of water droplets will increase if the vehicle isn’t
air conditioned during these months. Some refrigerators
come standard with a 12 volt (DC) climate control that
will evaporate the water droplets when they form. To have
the climate control on, you position the switch (normally
located beneath the top decoration panel that houses the
control panel) to ON. The approximate amp draw is less
than .5 (1/2) amp.
Note: The climate control will draw 12 volt DC power
continuously when in the ON position on certain models.
It should be turned OFF when a charging source is not
available or unit is in storage.
