I have a GE side by side with a clogged water line in the freezer door.
Water works to bottom of freezer door and I can snake up to about 4 inches from the dispenser.
It stopped right after switching filters so I assume the was something in the new filter.
I tried to run come compressed air through but it won't go through.

How can I replace the line, the door seems to be completely sealed.
Model is : GSS25QGTBCC

Thanks in advance.

The only solution is to replace the whole door or cut a one inch hole in the bottom of the freezer door carving my way to the line like I was breaking out of prison with a spoon and a beautiful woman on the outside. Grab that line like it was your bi$@h and snap a coupler on there and snake some line out of the hinge and connect. For extra points have a red bandanna around your head with a knife in your teeth.
Good luck!

Or its frozen or clogged, push in white coupler and disconnect water line under freezer door, blow compressed air through to unclog. If that doesn't work then defrost with door open do to a frozen water line inside door.
Also check water line behind crisper door for freezing.

You have to remove the door and then all the screws around edges, both the outside edge and the edges around ice and water dispenser. Have it lying flat on a table or other support. You will have to cut into foam to remove the line then put more foam in to replace any you took out after you replace the line. You can buy this at a builder's supply. When this is done you will need to remove old caulking around edges of door and seal very well with GE Silicone Caulk (Clear)(Never use a substitute.). I recommend letting door dry in sun first so it's very dry, otherwise is a warm garage with a heat lamp on it. You want it dry as any moisture will cause problems later. Apply silicone caulk around all edges contacting door and replace inside liner. This should fix the problem, but you may be able to do it easier if you can get to the coupling at dispenser end of line which is where the clog likely went to stop. It would normally stop where the line is narrowed. I would recommend that you put in a way to flush line after replacing the filter so it doesn't happen again. At least put in a coupling so you can remove it and flush the water into a pan before hooking it up.

Thanks all, I made a tapered plastic piece and jammed it in the dispenser and cranked up the air pressure... it finally came out.