a Bosch soap dispenser drawer usually has a bit towards the back that you can push down with your finger to release a catch and pull out the drawer. Give it a good scrub with hot water. You may also find black mildew in the receptacle. I use a a kitchen cleaner spray with bleach and a small nylon brush. Clean the upper surface of the slot as well. Once the bleach has killed the mildew it cleans off more easily.
these drawers tend to accumulate sludge from soap and fab soft, especially if you use too much. One way round it is to use tablets, balls, or put the powder through the door instead of in the drawer.
If there is also an accumulation of soap sludge inside the drum, do some high-temperature cotton washes with NO POWDER or fabsoft. Put old cotton towels in if you have them. If the water froths up during the cycle it will be with old accumulated soap which the hot water is starting to dissolve.
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local