New flush valve may be needed.
Make sure the toilet is the source of the leak. Put dye in the tank and see if it shows up in the bowl or shut the supply off to the toilet and see if the tank level goes down. You replaced the parts inside the toilet but did you check the surface where the flapper seals against the drain? This can be pitted or have rust built up on it. Is the chain to the flapper the right length? Too short and holding the flapper up or too long and getting under the flapper.
The filter or jet inside the toilet inlet has become blocked and needs to be either cleaned out or replaced.
Most consider toilet repair easier than replacement. However, many things need to be considered before deciding whether or not to fix or replace it. A toilet has a base, tank, seat, lid, flush handle and water line on the outside. Inside the tank are a fill valve that controls the incoming water and a flapper valve that controls water going from the tank to the bowl when the flush handle is pressed. Most tanks are attached to the base with two bolts and washers. Toilet repair usually begins when the flapper valve leaks water from the tank to the bowl, and it causes the tank to keep refilling though no one has flushed the toilet. Many times it is just the chain that lifts the flapper valve getting caught or twisted. This is a 30 second toilet repair. Replacing the flapper valve only requires cleaning the surface it closes on and 30 seconds to replace the flapper with a new one. Replacing the inlet valve is another toilet repair that only takes about 15 minutes for a novice who can follow written instructions. An inlet valve needs replaced when obvious leaking is spotted or a simple adjustment of the float assembly does not stop the water from overfilling the tank. It is a more involved task to replace the rubber washers and bolts where the tank meets the base, but it is still a job that can be tackled by a novice who can read and follow written instructions included with the parts. The main concern of replacing most any component of a toilet is over tightening and breaking the tank or base. If a toilet looks bad or a new design is desired, it still can be replaced by a novice. If the floor around the toilet is solid with no signs of rotting due to leakage, and if the toilet flange is intact, it takes about an hour for a novice to replace the toilet. Without a toilet jack to lower a toilet onto the wax ring that seals the toilet to the toilet flange, it is important to have two other helpers. Two are needed to slowly lower the toilet with the attached wax ring onto the flange while the other watches from floor level to be certain of the alignment of wax ring to toilet flange. Go slow and do not over tighten parts and that toilet can be new or good as new in no time.
How's the water pump?
If the night running lights have failed the bulbs should be checked. Find the bulb housings and remove the parts. After the bulbs are replaced check the lights.
A toilet that continues to run on and on may not be the most pressing of problems, but it can be quite irritating. Additionally, if you do not correct the situation, you might find yourself with an unusually large water bill. In most cases, fixing a toilet that refuses to stop running is a simple and inexpensive repair.There is no need to call a plumber if you can follow simple instructions. A toilet runs continuously for one of two reasons. First, there may be a small leak somewhere in the inner works that are contained inside the tank. If the stopper or rubber gasket is old and does not seat tightly on the drain, water will continue to enter the tank after you flush. It will not shut off if the leak is not corrected. Related to the first reason is the setting of the float. The float allows the water to fill to a certain level in the tank before the water automatically cuts off. The float may not be able to reach the prescribed level if water is leaking out.The first thing to do is to remove the cover from the tank and see if the flapper is stuck and simply not falling in to the hole at the bottom of the tank. Every once in a while the little chain that is attached to the flapper gets caught on something and does not allow it to seat properly in the hole. If that is the case, simply reach in to the tank and untwist or untangle the small chain, allowing the flapper to drop in to position. With the tank cover still removed, flush the toilet and watch to see if the flapper now operates correctly. If it does, your problem will probably be solved and you will not have to listen to that annoying run on sound.You may not be quite so lucky and the toilet will still continue to run on without an end in sight. In such an instance, the easiest thing to do is go down to your local home improvement center and purchase a new flapper or a complete repair kit. To be on the safe side and for only a few dollars more, buying a complete repair kit will assure that the problem will be fixed. If your toilet is more than a few years old, it also makes sense to buy all new parts.To repair the inner works, you will need to shut off the supply of water and drain the tank. Once that is done, either install the new flapper or the complete assembly. The process is simple and straight forward. Just follow the directions on the package and you should be done in about 15 minutes.
have you checked the fan
Did you replace the master. It might be by passing.
Is footloose still running
Do the electric cooling fans kick on?
The valve is not be diverting all the water. This valve may need to be replaced.
I don't think so because then it has nasty toilet water on it