Toilet tank not filling

jasether-

The fill valve is most likely corroded with mineral deposits. You can either try to clean it or replace it (these cost just a few dollars). Remove the old one and take it to a plumbing supply or hardware store to properly match the replacement.

Hope this helps.

Regards,

DIYpro

This is diagram of a typical toilet tank setup if the refill tube is not putting water into the flush valve as pictured the toilet will do what you have described.

The exact cause of a Kohler Cimarron toilet running non-stop depends on the exact model of toilet owned. In some, the lift chain connected to the handle can become kinked, preventing the ball seal from covering the drain completely. Just unkink the chain to fix this. In other cases, the float ball is stuck against the side of the tank, preventing it from returning to its normal horizontal position. When this happens, the toilet's tank doesn't stop filling with water. The excess continuously flows into the overflow pipe. Dislodge the float ball from the side of the toilet and this should clear the problem. Likewise, you might consider shortening the armature on which the float ball sits, so it won't become stuck again.

Read more: Troubleshooting a Kohler Cimarron Toilet ' eHow.com http://www.ehow.com/how-does_5017443_troubleshooting-kohler-cimarron-toilet.html#ixzz1CxKmz9ZQ

theres probably debrie in flush valve, mite also try putting food dye in tank (any color) if it appears in bowl the flapper is seeping water and activating flush valve..

More then likely the power valve in your flush master ball valve is out.. Replace flush valve and should fix problem. Home depot sell fluid master for like 7.50

its all down to water presher trying to fill the header tank,,,change the washer in the ball **** may help shut it up

It's either plugged or the tank isn't filling properly.
If it's the tank then the fill valve in the tank needs to be adjusted. There should be a screw to adjust the float ball. Back the screw out until the fill valve starts to run;let the water run until the tank fills to the fill line then turn the screw back in.Try flushing the toilet. If that doesn't work then the toilet is probably plugged.
If it's plugged you may need to rent/borrow a snake to clear the line.

By "tank ball" do you mean the fill valve that is connected to the water supply line or the flapper ball connected to the toilet handle?

okay depending on the type of toilet ball **** (i know its a funny word, but it's really what its called.) you have one the most standard type is the long wire with the big ball on the end. you need to adjust this ball **** so it goes lower test it out, flush your toilett and wait till the water drains then when its supposed to come back up push down on the ball **** and youll see the water will start to fill, so then adjust the little screw on the fill valve (the other side of the floater where its attached)

you may need to shut off your water supply and drain your tank depending on how skilled you are,

pretty simple work, if you have questions feel free to ask.