When I put in my fabric softener it will not dispense into the washer during the cycle

One of two things either the motor the moves the valve form wash to fabric softener to bleach is bad or most likely the small hole in the top of the dispenser housing are clogged. I have never had any luck cleaning them out enough to work correctly,I have this same unit in my house and had the same issue with the dispenser just a couple of months ago.The fix is to replace the dispenser assy. and then leave the drawer open when not in use to air out the inside preventing the growth that blocks the passageways needed for fabric softener to work