Problems during cleaning
Problem Possible cause Required response
Black spots inside the cooking
compartment
Wrong cleaning agent Use ConvoClean forte for
fully automatic oven cleaning
with canisters
Use ConvoClean forte S for
fully automatic oven cleaning
with single-measure
dispensing
Use ConvoClean forte or
ConvoClean new for semi-
automatic oven cleaning
The water is too hard Adjust the water hardness; see
'
Technical Data
' in the
installation manual
Poor cleaning results The wrong soiling level has
been set
Select a higher cleaning level
The wrong cleaning agent was
used
Use ConvoClean forte or
ConvoClean new for fully
automatic oven cleaning with
canisters
Use ConvoClean forte S or
ConvoClean new S for fully
automatic oven cleaning with
single-measure dispensing
Use ConvoClean forte or
ConvoClean new for semi-
automatic oven cleaning
6 How to Perform Maintenance on the Combi Steamer
Operating Manual 121