My water for the comode faucet is turned on and still no water comes in the tank. It worked fine until just now?? The other water in the house works fine, so my water is not turned off. Whatever made the water to the comode stop working!? \

Shut off water and remove flex hose from toilet. Point hose into a bowl or pan and turn water on. If you get water then problem is with ballcock.

Which one do u have . See picture