Silvercrest Classic Model L Operating Instructions And Safety Advices page 37

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Error
code in
the
display
F1
F2
F3
Note: The programmable radiator control
unit performs a decalcifying run once a week
on Saturday at 12:00 to protect against
calcification of the valve. During this „CAL"
appears in the display.
Problem
Valve drive Check the in-
is stiff to stallation and
move heating valve
Actuating
range too fastening of
large the radiator
Actuating
range too heating valve
small
Rectifica-
tion
Check the
control unit.
Check the
GB 41
09.07.13 11:08