Bertazzoni Coffee Machines CLEAN GROUP Error: Routine 50-cycle cleaning due
What Does “Clean Group” Mean on a Bertazzoni CM24 Coffee Machine? Clean Group is a routine maintenance prompt on the Bertazzoni CM24 automatic coffee system. The machine counts every brew cycle and, at the factory-default interval of 50 cycles — approximately once per week for a typical household — it suspends drink functions and asks […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Yes. Clean Group is a maintenance reminder. The machine is safe — complete the Routine Cleaning procedure and all functions resume immediately.
Can I reset the code?
Yes. Completing the Routine Cleaning procedure (p.37 of the use and care manual) automatically resets the Clean Group counter and clears the message.
When to stop immediately?
Stop if you notice: Clean Group reappears within a few cycles of completing routine cleaning, Cleaning procedure runs but does not clear the message.
Symptoms You May Notice
Machine suspends all brew functions and prompts for cleaning approximately once per week under typical household use
The CM24 tracks brew cycles since the last routine cleaning. At 50 cycles — roughly once per week for a household making 7 drinks per day — it requires the Routine Cleaning procedure before drinks can be made again. Coffee quality may have subtly declined in the final cycles before the prompt appears.
Display reads "Clean Group" before allowing any brew commands, regardless of visible cleanliness
The reminder is cycle-count based, not condition-based. It will appear even if the machine looks perfectly clean because coffee oils and microscopic grounds accumulate in the brew unit between visible cleaning sessions.
Possible Causes
Programmed routine-cleaning cycle counter reached
The CM24 counts brew cycles since the last routine cleaning. At the factory-default threshold of 50 cycles, the machine displays Clean Group as a maintenance reminder that clears only after completing the full procedure.
DIY PossibleCoffee oil and limescale accumulation in the brew path
Without periodic cleaning, coffee oils accumulate in the group head and brew unit, and scale builds in the water path. The 50-cycle interval is engineered to prevent flavour contamination and component clogging before they become service issues.
DIY PossibleSafe Checks You Can Do
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Perform the Routine Cleaning procedure
Follow the Routine Cleaning Instructions in the use and care manual (p.37). The procedure involves cleaning the coffee dispenser, milk foamer, drip tray, and performing a system flush.
Clean Group does not require a service call. It is a scheduled maintenance reminder that every owner is expected to perform. The machine resumes normal operation immediately after the cleaning cycle completes.
When to Call a Professional
Contact a qualified technician if:
- Service menu shows the clean cycle counter malfunctioning or not resetting
- Group head shows heavy black sludge buildup requiring professional descaling
- Descalcification is also overdue and must be performed alongside group cleaning
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