Water doesn't empty out of the softener compartment.

Fabric softeners can coagulate and clog hose. Try pouring hot water into compartment, with washer empty, to clear hose.

The 1st thing to try is to take out the dispenser ,there is a little piece that you will push down and then pull the entire assembly out, rinse it out with hot water ,most likely there is a build up in the dispenser,there after use only powder detergent, and no more then 1 tbs ,and any other stuff IE bleach ,fabric softener,use 1/2 the amount and dilute it with water.

The mixing value is leaking. I ordered a new one and will replace it.

My Frigidaire front loader was doing the same thing and also not taking the bleach. I could hear that the water pressure was not real strong when I turned the machine on. I removed the two small screens on the back of the machine where the water supply hoses attached, found they were partially clogged and cleaned them well. The bleach and softener dispensers are now working like new.

if it has to go in the rinse,,this means you have to put it in the fabric softner compartment of the dispencer,,,also do not fill pass mark fill line in dispencer or it will sphion down by itself before time..onthejob

your cold water may be the issue, turn off your water and check the screens to the cold water side. make sure the machine gets cold water.

Is the dispenser full? It could be that it is a bit clogged. I would try just pouring a little very hot water in for several loads and using dryer softener sheets during this time. Let's see if we can unclog it .

As you look at your dispenser. The Left compartment is for Detergent. The Right Front compartment is for the Fabric Softener Liquid. The Right Rear compartment is for Chlorine Bleach.

I'm sure you heard a small motor running from time to time during a cycle. That moves an "arm" which sends water to the different chambers during a cycle. Fabric softener is dispensed when water goes to that chamber and dilutes the fabric softener. That chamber then empties by a siphoning action.
If you want to narrow down the problem a little to help trouble shoot -- put some wet rags in and run the Rinse and Spin cycle with some fabric softener. If the softener is not dispensed, then you know that the water isn't being sent to that chamber properly.
If you are intrepid enough to take the top off your washer, do that and see if the arm appears to be moving during a normal cycle. Maybe the arm got dislodged or broken during the move.
If water isn't being diverted properly, I think this calls for a real repair person.