Viva bottom loading water cooler does not dispense water

I just got my bottom loader viva water dispenser working. It is a used one so I started from the bottom up. Finally pump had a discoloration, so was brave and took it apart. It was rusted and the diaphragm was put in wrong.

Some others addressed this issue on Fixya.com before:
Brett 42 said: the water line is froze.. I took a hair dryer and applied it directly to the dispenser for about 10 minutes. I then held down the buttton for approximately 30 seconds and the water began to drip extremely slowly then faster until a small chunk of ice shot out of the dispenser. I believe the reason this happened was that I the temp of my freezer set lower than the fatory setting.
Mike Smith said: "1) remove the tubing connector behind refrig kickplate . Press for water . If no water comes from tube under refrig , then possibly frozen tank but probably not . Probably bad water inlet valve . ( tank is in the lower potrion of the refrig section behind the crispers ) .
2) if water does shoot out , then your freezer door is frozen which requires leaving door open and tapeing light switch closed and tape plastic around freezer section opening so fridge will continue to operate normally . Thawing freezer door could take a day or 2 . 3) You can plug the hoses back togather and walk by occasionally pressing water untill comes out . Lower your freezer temperature setting also ( could be set for too cold)"

I hope this helps you out!