1.6 toilet will not fill - American Standard Home

Valve fully open on inlet going into toilet if it is then fill valve needs to be replaced check water line for any abstructions that might interfere with water going into tank.

Maybe something wrong with the mechanism inside the toilet fill valve. Try to adjust the fill valve first. I found this one about adjusting fill valve, I hope it can help you.

ADJUST MOEN TOILET FILL VALVE 5300 Home

If the problem remain after adjusting the fill valve then I will suggest you to buy a new toilet fill valve and replace with the old one.

Thanks.

The inlet feed that fills the toilet is blocked slow to fill needs cleaning out .

Hi,
Replace your toilet fill valve with a fluidmaster 400A

Click here

http://411plumb.com/how-to-replace-your-toilet-fill-valve-with-a-fluidmaster-400a

heatman101

Is the flapper valve slow to return to the closed postion allowing water to flow through the flush valve? Make sure the toilet flapper is moving freely and is sealing properly against the flush valve. If there is no lengthy or continual water flow in to the toilet bowl then this is not the problem.

Is the water valve on the water fill line to the toilet tank fully open? This may seem silly but it could be this simple.

Check to make sure your fill valve is opening fully. If you have an older toilet there may be some deposits that need to be cleaned way to allow free movement.

If toilet does eventually fill to the desired level, there is no leakage, water valve on fill line is fully open and fill valve is opening fully then recommend you shut off water supply, drain toilet and disconnect water fill line from the water valuve and toilet tanke to make sure there is not a blockage. If the water line and connections are clear you may need to remove the fill pipe in the tank and check for blockage. If this is very old, conisdering the cost and effort, it may be simpler to replace at this time rather than trying to extend the life.

Hi,
I would say yes....here is the .pdf for your toilet and it has nothing like that in it...your toilet should be a simple fill device and flush mechanisim...
I would return it for a new one...

http://www.us.kohler.com/onlinecatalog/pdf/1066506_2.pdf

heatman101

Defective fill valve contact Toto for a free replacement part

adjust the over flow

for the upstairs if the valve is fully on there is not much you can do other than replace water service to the house or heaven forbid repipe.Valves usually don't restrict fill volume.But you can take the supply loose from the tank and stick it in a bucket turn the valve on and check the flow.this should narrow it down.Down stairs repair or replace flush valve

buy a universal fill valve and replace it