We probably need more info, I know I do...
Submersible pump, or above ground pump?
You turned on the faucet at the tank? And there was water flowing out of it? You checked the pressure in the tank, was it empty at the time? What does the pressure gauge read while the pump is running? Why do you think water is not going into the tank? When you have the pump running and you get water flowing out of the faucet at the tank, do you get water at the house if you close that faucet?