Thank you for contacting us. We understand how inconvenient for you to face with such kind of issue. And here are the suggestions for you:
Everytime before you use the bottle washer BS03 or D8, please place the Momcozy cleaning tablet for BS03 / BW05 directly on the bottom of the inner chamber. Please do not place it on the upper rack or in the water tank, and ensure it is not pressed down by small accessories.
Besides, here are some suggestions to help you with the cleaning:
1. Discard any visible milk residue or milk curds from the bottle. If there is obvious grease or food residue, rinse it briefly with water.
2. Following the user instructions, invert the bottle and place it on the lower shelf, aligning the bottle opening with the spray column/water flow, and ensure the spray arm can rotate freely.
3. Place small accessories such as the nipple, bottle cap, bottle ring, anti-colic tube, straw, and gravity ball on the upper shelf or in the designated area for small accessories, keeping them separate and with gaps.
4. Select a suitable cleaning program; if there is a lot of milk fat or residue, it is recommended to choose a stronger/more complete cleaning program.
5. After the program is finished, check for any remaining residue. If any remains, take photos of the placement, the location of the cleaning tablet, and the location of the residue to help customer service make further assessments.
If any other problems, you can contact the Momcozy manual support supports. Thanks.