20 Most Recent Kohler 1221-H-0 Seadream 6' Whirlpool Bath Tub with Heater - Page 6 Questions & Answers

It sounds like the electronics is failing, Contact Kohler for a replacement.

Contact a local supply house or a big box store in your area.

I would try to repair only if you have the knowledge to do so. It can be tricky and may not be permanent. Weigh the cost of a new one vs repairing it. Toilets generally last a lifetime other than the moving parts.

13 inches gives an inch or so on back of toilet and you need a standerd toilet for the rough in.

Flapper inside of tank is letting water by or flush valve is not stopping water and needs replacing check flapper on inside on bottom it attaches to the chain on lever.

Valve needs to be replaced on inside of tank flush valve is going bad replace it the water you are hearing is water going into the fill tube going into bowl nothing is wrong with that its normal.

Flapper on flush valve is not setting good on bottom of tank inside.

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.

Check that the black float ball isnt hanging up on anything under the cover if it stops and hangs up on something the valve will continue to fill the tank and water willoverflow cause it wont shut off.

Something is leaking by whether its the washer in the flush valve or the flapper is no good and seal doesnt sit properly check out these parts and it should take care of your problem adjusting water is not the problem water escaping into bowl is.

Usually there is a screan that is on the bottom of fill valve on the outside of tank were the water inlet is you can shut water off and remove srean and flush out if it dont have one you will have to remove the valve from tank and flush out in kitchen sink or faucet.

You have to look at the stainless rod that is on the side of black float it has a stainless clip on it you take pliers or fingers and move the clip down on rod to raze the float.

Remove tank from bowl and take the nut off were the water inlet goes the assembly will come offf and reinstall the new valve

You dont need any special tools are you taking tank off and pulling off the gasket and installing new one on the bolts

The float valve needs adjusted or replaced.

Look to see if chain to flush valve is connected. (valve is the item in bottom center of tank aka flapper.

Check if the bowl is cracked. If so, it's replacement time.