Pour the solution into the drum of your washing machine or directly down the water drain if it is accessible.
How to remove fabric softener build up from washing machine. Pour the mixture into the dispenser. This is something you should do as soon as you see any build up and remove it. There are tub cleaners that will help with this problem.
Run the cycle as usual. After you remove this film and if you still want to use your softener try diluting. Fabric softener do not fill higher than the line indicated by MAX.
The smell could sometimes go away for a couple of weeks if I used products to eliminate smell but it would always. Detergent for the main wash water softener pre-soaking agent bleach and stain remover. Adding the softener during the wash cycle will cause the softener to be washed away.
Add enough warm water to cover the dispenser. Fill the washing machine with water then add in all the clothes that have an odor from the fabric softener. Id start with the cheapest going to the more expensive ideas.
Add a good splash of vinegar 1 cup as it fills. Mix in a tablespoon or two of liquid laundry soap swirling it into the water with your hand. Id try baking soda with hot water.
Combine 2 cups of hot water with 2 cups of borax in a waterproof measuring container. Again making sure that no bleach is present in the machine spray the agitator and washtub with a dilute solution of white vinegar usually 5050 works give the vinegar some time to dissolve the build-up and then attack the area with either a scrub brush or sturdy sponge. Low-temperature washing can cause liquid fabric softener and detergent to remain undissolved in washing machine outlet pipes.