Formula Pro Advanced Locking Cover: Fitting and Care
By Baby Brezza UK | Published: 2026-10-14
Category: Tips & Care
Is your Formula Pro Advanced locking cover loose or missing? Learn how to fit the genuine replacement correctly and keep it clean for a secure mix every time.
Quick answer
If your Formula Pro Advanced locking cover is missing, cracked, or won't stay locked, replace it with the genuine Replacement Locking Cover for the Formula Pro Advanced Only. It's a simple push-fit part with a silicone scraper that keeps the mixing chamber sealed. Clean it weekly by hand to prevent formula residue from making it loose.

Why the locking cover matters
The locking cover sits on top of the mixing chamber and holds the silicone scraper that sweeps formula and water together. Without a secure cover, powder can escape, the mixing cycle may not run correctly, and you may see inconsistent bottle strength. Because the cover is a wear part, it can loosen over time or crack if dropped. A loose cover is not just an annoyance; it can affect how well the machine mixes each bottle.
How to fit the replacement locking cover
Before fitting, unplug the machine and remove the water tank and powder container so you have clear access to the mixing chamber. Check that the chamber rim is clean and dry. Align the replacement cover so the silicone scraper sits inside the chamber, then press down firmly around the edge until it clicks into place. Give it a gentle tug upward; it should stay put. If it lifts easily, reseat it and check for any debris trapped under the rim.
Cleaning routine that prevents locking problems
Formula residue is the most common reason a cover stops locking properly. Remove the cover weekly and wash it by hand in warm water with mild dish soap. Rinse well and let it air dry completely before refitting. Avoid the dishwasher, as high heat can warp the plastic and reduce the fit. If you notice a sticky film on the chamber rim, wipe it with a damp cloth before replacing the cover.
Diagnosis: why your cover won't lock
- Cover is missing or visibly cracked: A missing cover or one with a broken tab cannot seal the chamber. Order the genuine Replacement Locking Cover for the Formula Pro Advanced Only (product 2410414). Replace immediately; do not run the machine without a cover.
- Cover is present but pops off during mixing: Residue or a warped cover prevents a tight fit. Remove the cover, wash it by hand, dry it fully, and check the chamber rim for dried formula. If it still pops off, the cover is likely warped and needs replacing. Clean first; if the problem persists, replace the cover.
- Cover fits but the scraper looks worn: The silicone scraper can lose shape over time, reducing mixing efficiency. The replacement cover includes a new scraper, so replacing the whole cover restores both the lock and the scraping action. Replace when the scraper no longer sits flush against the chamber wall.
Genuine replacement part
- Replacement Locking Cover for the Formula Pro Advanced Only: Includes 1 Replacement Locking Cover w/Silicon Scraper for the Formula Pro Advanced. This is the exact part for the Formula Pro Advanced, so you get a correct fit and a new scraper at the same time.

