IIRC, there are some hose clips that secures the water hose in back of the
cabinet.  If I don't recal corectly ;o), even if there are no clips, the
hose is too stiff to be able to just pull it through.  In any respect, you
probably just have ice in the hose which is preventing the water from
getting to your fawcet, or/and your faucet is froze up as well as there is
a check valve in the fawcet that keeps a little water in there.

To specifically answer your question, there is nothing in the water line
between the tank and the fawcet.

Pascal
'84Westy