Fabric softener dispensor does not empty

For the FAV6800A or FAV9800A:

If you have no water flow to the Softener dispenser or Bleach dispenser see if you can turn the dispenser valves on Service Mode and verify water flow to the reservoirs.
Enter Service Mode (page 14 of the Service manual) by Pressing Enviro Plus and Spin Only keys (simultaneously) for three seconds or until the console beeps.

Now go to page 16 to Service Manual and enter Board Output Test by pressing the Delicates key. This will lock the lid. Now press the Wrinkle Control Key Pad on the console. The Control Board will send 120VAC to the Fabric Softener dispenser water valve. Did you hear the solenoid hum? If so we will now need to turn on the Cold Water Inlet Valve and see if water flows to the dispenser.

Now press the Spin Only key this will turn on the Cold Water inlet valve after 5 seconds press the Off key. The washer will unlock. Check to see if water did flow to the fabric dispenser reservoir. If you heard the Fabric dispenser valve hum then most likely 120VAC was applied to the solenoid. If water did not flow then the Fabric dispenser valve is stuck closed if you heard it hum.

The Bleach/Fabric dispenser water valve is an assembly and is not repairable you have to replace.

Final technical troubleshooting as a technical owner of the machine would be to take my DVM and verify 120VAC from the Control Board to the Fabric dispenser solenoid.
See page 36 lower left hand corner is the Bleach/Softener dispenser valve.
Here is the Service Manual for reference. Sears Parts Direct for reference.

The Part Number for the Dispenser Valve is 25001043 you can order from this site or search the internet for best price try appliancezone.com…

You can remove the Fabric Softner to clean see page 33 of the Service Manual…Rich