THE SERVICE INDEX
Model & manual
What does the reviewed BES870 booklet distinguish?
The USCM-M21 source separates a flashing cleaning indication from a solid descaling indication.
Does a 15 mm tablet diameter establish machine compatibility?
Physical size is only one product specification, not a chemical authorization.
What if a seller procedure differs from the manufacturer page?
The selected Rinza record contains a real source discrepancy, not a reason to invent a compromise.
Why does the machine model and manual region matter?
A brand-wide cleaner recommendation is broader than the reviewed equipment evidence.