no water and ice from dispenser but ice maker is fine

Just came back from my friends house who was complaining that his dispenser no longer works. He changed his filter a few days ago.
checked it out myself and found that the filter was not installed properly (not turned all the way).
After re-installing the filter, there is now ice being made in the ice maker but still no water or ice being dispensed in the front dispenser. Indicator lights disappear after pressing the buttons but reappear after a short while.
What do you think went wrong?