I have a American Standard Carlyle, with a leak that keeps filling up tank. Have replaced flush valve, flapper, and refill. Put food coring in tank, and water is coming into bowl at the bottom of bowl, not sides. Is toilet cracked on inside?

these are called phantom flushes. the water is slowly leaking around flapper or the is a scratch of the flapper seat. I use fluidmaster parts

Start with the flapper. They tend to dry up especially with water that contains chlorine. Purchase the American Standard flapper if available for that toilet. Works better than generics.

Sorry for problem with new toilet.
You say water is leaking out of the bowl?

Toilets have 2 parts:
1) Tank: where water is stored for the flush and is sealed with a flapper.
2) Bowl: where water flushes down.

a) If tank is leaking water, then flapper is suspect. Replace flapper and see if that works.
Lift up flapper and run finger around rim to see if there is a rough spot that would indicate flush valve is defective, and needs replacement.
See typical flush valve

b) If bowl is leaking, that is very unusual and would indicate a crack in the porcelain.

If installer sold you the toilet, it is his responsibility to make good on product.
All products are guarantee against workmanship flaws.

You say you have replaced seals. I assume that you are refering to the flaper valve that controls dumping water from tank to bowl to flush. To make sure you have a good seal put a dozen or so drops of food coloring directly into tank when it's full and observe for a hour or so to see if water in bowl is discoloring. If it is then you are still leaking there. You can shut off water supply off or flush toilet and manually hold flush valve closed. Check to see if there are any rough spots on flapper seal that could stop flapper from sealing good. If you find rough spot then make sure the surface is dry and sand lightly with medium grit sandpaper.120 grit or finer.
One other thing to check is if your toilet has the plastic or rubber tube that goes from the flush valve into the overflow. Make sure that this tube does not set below water level in tank when it is full as this can create a suction or syphon,
Hope this helps you. Thanks

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..

There are a few likely causes for a toilet to leak and refill. The most common is the flapper not seating properly. Usualy on an American Standard it is a disc. Either way, they are fairly easy to replace. One test I use to see if the leak is comming from the flush assembly is to put a couple drops of food coloring in the tank and wait a few minutes to see if it appears in the bowl. If so, there is a leak in the flush assembly, usualy the flapper. Hope this heps. Please vote to let me know.

is the flapper weighted? if it is it will cause it to shut prematurely. one thing you can do is increase the water in the tank. you might have to buy a pvc cuppler to put on the over flow to allow it to fill up more. korky makes a nice flapper thats not weighted

I have minute amount of leakage into the bowl causing mold to grow. I believe that it may be the rubber seal for the flapper body to the porcelain.

I have the American Standard Champion 4 toilet. Water is leaking from the tank to the bowl causing the toilet to refill. I've replaced the flapper and cleaned the surface the flapper contact. Nothing seems to work.

get a new filler assembly. the water in the tank is heavy enough to close the seal completely. or the rubber seal is not making contact. thats' why the leak.
change the whole assemble ususally correct the problem.
adjuste the flow to about 1/4 to 1/3 under the over flow. if that still don't give you the pressure. you ca adjust the flow tube to 1/5 under the cover. that is the max.